Rexnord Falk Quadrive A User manual

Falk®Quadrive®Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 1 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
TABLE OF CONTENTS
Introduction 2
Drive Identification 3
SECTION I — DRIVE INSTALLATION
Outfitting 4
Installation 7
Lubrication 9
Start-up 9
SECTION II — DRIVE SERVICE & REPAIR
Preventive Maintenance . . . . . . . . . . . . . . . . . 10
Oil Changes . . . . . . . . . . . . . . . . . . . . . . . 10
Stored & Inactive Drives . . . . . . . . . . . . . . . . . 10
Repair & Replacement . . . . . . . . . . . . . . . . . . 10
Drive Disassembly . . . . . . . . . . . . . . . . . . . . 12
Identifying & Ordering Parts . . . . . . . . . . . . . . . 14
Recommended Spare Parts . . . . . . . . . . . . . . . 14
Parts List of Falk Part Numbers . . . . . . . . . . . . . 16
Bearing Cross Reference Numbers . . . . . . . . . . . 17
Seal Cross Reference Numbers . . . . . . . . . . . . . 17
SECTION III — DRIVE REASSEMBLY
Drive Reassembly . . . . . . . . . . . . . . . . . . . . 18
APPENDICES
Appendix A: Lubrication Recommendations . . . . . . 23
Appendix B: Backstop Installation. . . . . . . . . . . . 32
Appendix C: TA Removal Tool . . . . . . . . . . . . . . 34
Appendix D: Motor Mount Installation . . . . . . . . . . 36
Appendix E: Vertical Standpipe Installation . . . . . . . 38
Appendix F: Modifications for Non-Standard
Mounting Positions. . . . . . . . . . . . . 40
Appendix G: Retaining Rings for Bushing Nuts and
Thrust Plates, Tooth Combinations for
Vibration Analysis & JSC Lip Seal
Accessory . . . . . . . . . . . . . . . . . 42
Appendix H: Drive Shaft Recommendations for
Tapered Drive Shafts . . . . . . . . . . . 43
Appendix J: Drive Shaft Recommendations Using
TA Taper Bushing . . . . . . . . . . . . . 41
Appendix K: Drive Shaft Recommendations Using
(TCB) Kit . . . . . . . . . . . . . . . . . . 46
Appendix L: V-Belt Guard Installation . . . . . . . . . . 48
Appendix M: Electric Fan Installation . . . . . . . . . . 51
Appendix N: Reliability Package . . . . . . . . . . . . . 52

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 2 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
INTRODUCTION
WARRANTY — Rexnord Industries (the “Company”)
warrants that, for a period of three years from the
date of shipment, the product described herein will
deliver successfully its rated output as indicated on
the nameplate, provided it is properly installed and
maintained, correctly lubricated, and operated in the
environment and within the limits of speed, torque or other
load conditions for which it was sold. Such product is
expressly not warranted against failure or unsatisfactory
operation resulting from dynamic vibrations imposed
upon it by the drive system in which it is installed, unless
the nature of such vibrations has been fully defined
and expressly accepted in writing by the Company as a
condition of operation.
WARNING: Consult applicable local and national safety
codes for proper guarding of rotating members.
Lock out power source and remove all external loads from
drive before servicing drive or accessories.
CAUTION: Do not weld the drive housing or accessories
without prior approval from Rexnord Geared Products.
Welding on the drive may cause distortion of the housing
or damage to the bearings and gear teeth. Welding without
prior approval will void the warranty.
DRIVE RATING — Operate the drive only within the
horsepower and output speed for which it was selected
and specified in Selection Guide 371-110 for the
application. Refer to the nameplate for drive size, ratio and
data.
FALK FACTORY REPAIR AND REBUILD — Rexnord wants
to continue to be your primary supplier, and we extend our
service to you if your equipment is in need of repair or
replacement.
We are able to furnish a fast turnaround on both the
quotation and rebuild. Nobody can do the job better than
Rexnord. If you need repair on Rexnord products,
just ask.
Contact your local Rexnord Account Executive or distributor
for more information.

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 3 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
Basic “J”
(JR) Shaft-Mounted Drive
1) Basic Drive
2) Torque Arm
3) TA Taper Bushing
JF Flange Mounted Drive
1) Basic Drive
TA Taper Bushing Optional
JSC Screw Conveyor Drive
1) Basic Drive
2) Seal Housing
3) Drive Shaft
+ Motor Mounts
+ Backstops
+ Shaft Fans
(5215 thru 5315 only)
+ Electric Fans
(5307 & 5315 only)
+ Vertical Standpipe
NOTE: Use a TA Taper bushing when mounting these drives on a straight driven shaft (hollow shaft is taper bored).
+ Trough Ends
+ Thrust Plate Kits
+ V-Belt Guards
+ TA Removal Tool
J is the basic drive identification. It can be outfitted for use as a shaft-mounted drive JR; a flange-mounted drive JF; or a
screw conveyor drive JSC, as illustrated below. These unique identifiers, JR, JF & JSC, are used throughout this manual to
assist you in identifying the instructions which apply to your drive arrangement. The prefix “M” identifies a drive that features
a nominal metric high-speed shaft.
Drive Identification
Size (Series)
Maximum Bushing Bore (1 7/16”)
Drive Type
Ratio (Nominal 25:1) Model
5 107 J25 A

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 4 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
Section I
DRIVE INSTALLATION
OUTFITTING
1. JR, JF, & JSC — Find the desired mounting position
in Figure 1 and install air vent and magnetic drain plug
(packaged separately with basic drive). Also note and/
or mark the oil level plug location OR in the case of a
vertical mounting, refer to Appendix E for installation
of vertical stand pipe. If the mounting angle exceeds
the limitations shown in Figure 1, refer to Appendix F
to determine modifications necessary within the limits
illustrated therein. DO NOT fill drive with lubricant at
this time. Oil plugs are located on input housing half.
2. JR — Remove anchor brackets, housing flange fasteners
and rod end fasteners from tie rod kit and assemble
to drive as illustrated in Figure 2. Refer to Table 1 for
tightening torque (original fasteners may be discarded).
FILL
DRAIN
OIL LEVEL
STANDPIPE &
VENTED DIPSTICK
FILL VENT &
STANDPIPE
INPUT SHAFT DOWN INPUT SHAFT UP
DRAIN
± 1° MAX
12 O’ CLOCK
D
L
F
F
L
D
3O’CLOCK
F
L
D
6O’CLOCK
F
L
D
9O’CLOCK
SIZES 5203 THRU 5315
5:1 RATIO ONLY: RELOCATE
AIRVENT ON OUTPUT SIDE
FOR 9 O’CLOCK MOUNTING
REPOSITION PLUGS TO
SUIT REQ’D MOUNTING
D = DRAIN
F = Fill & Vent
L = OIL LEVEL
(HIGHEST INPUT
SIDE PLUG)
10
MAX
°
5°
MAX
30 UP
(20° FOR
5315)
°
5DOWN°
INCLINE ROTATION
5°
MAX
10°
MAX
(5107&5115) (5203 THRU 5315)
0° Incline down on drives
with backstop in 9 or 12
o’clock mounting position.
HORIZONTAL DRIVESFigure 1
VERTICAL DRIVES
ANGULAR LIMITS FOR HORIZONTAL MOUNTING
(ALL CLOCK POSITIONS)
5107&5115 5203 THRU 5315
HOUSING FLANGE
FASTENERS
ANCHOR
BRACKET
TORQUE ARM
FASTENER
ALTERNATE
LOCATION
PREFERRED
LOCATION
Figure 2
TABLE 1 — Housing Flange Fastener Size
and Tightening Torque
(Non-Lubricated Fasteners)
DRIVE SIZE Fastener Size Tightening Torque lb-ft
(Nm)
5107 .312-18 19 (26)
5115 .312-18 19 (26)
5203 .375-16 28 (37)
5207 .500-13 69 (94)
5215 .500-13 69 (94)
5307 .500-13 69 (94)
5315 .500-13 69 (94)
3. JR — The tapered bore hollow shaft is designed for use
with a TA Taper bushing for mounting on a driven shaft with
a straight outside diameter. Shaft tolerances for the driven
shaft are given in Table 1A. The minimum and maximum
driven shaft engagements, dimension “N” in Figure 3, are
shown in Table 2. The minimum engagement is necessary
for full bushing engagement; the maximum engagement is
only required if a thrust plate will be employed to remove the
drive from the driven shaft (see Appendix C for preferred
removal method).
TABLE 1A — Driven Shaft Tolerances 
Shaft Diameter – Inches Maximum Under-size – Inches
Up to 1.500 .004
1.500 - 2.500 incl. .005
2.500 - 4.000 incl. .006
cMillimeters = h10 tolerance.
N
THRUST
PLATE
HOLLOW
SHAFT
COVER
HIGH-SPEED
SHAFT
SHEAVE
MINIMUM SPACE REQUIRED
FOR V-BELT CLEARANCE
TORQUE
ARM
CLEVIS
BRACKET
MINIMUM SPACE REQUIRED
DRIVEN
SHAFT
BUSHING
NUT
BEARING
SUPPORT
Figure 3

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 5 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
a. THIN WALL BUSHING (with keyway slot through
the bushing wall) — With the driven shaft keyway
at the 12 o’clock position, slide bushing assembly
onto the driven shaft, nut end first, and position
the keyway slot over the shaft keyway (the bushing
may have to be pried open slightly). Insert the
drive, key furnished with the bushing, into the
shaft keyway. Proceed to Step 7.
4107 and will employ a 2.437” (61.9 mm) or 3.000”
(76.2 mm) diameter drive shaft, place the (2) gaskets
and trough end spacer, packaged separately, over
the trough end surface of the seal housing, Figure 6.
Continue outfitting based on the type of trough end
seal to be installed: (a) Waste Packing Seal; (b) Lip
Seal or; (c) Packing Gland Seal.
TABLE 2 — N Dimension Inches (mm) 
DRIVE SIZE Minimum Maximum
5107 5.00 (127) 7.19 (183)
5115 5.55 (141) 8.05 (204)
5203 5.53 (140) 7.78 (198)
5207 6.11 (155) 8.72 (221)
5215 7.08 (180) 10.15 (258)
5307 7.39 (188) 10.69 (272)
5315 7.92 (201) 10.74 (273)
cThe minimum engagement is necessary for full bushing
engagement; the maximum engagement is only required if a
thrust plate will be++oyed to remove the drive from the driven
shaft.
b. THICK WALL BUSHING (with separate internal
and external keyways) — Insert the driven shaft
key into the driven shaft keyway. If the driven
shaft has an open-ended keyway, stake the
keyway, Figure 4, to prevent axial dislocation of
the shaft key under operating conditions. Slide
the bushing assembly onto the driven shaft (the
bushing may have to be pried open slightly).
Rotate the shaft so the external keyway in the
bushing is at the 12 o’clock position. Then insert
the drive key, furnished with the bushing, into
the keyway. Proceed to Step 7.
4. JSC — NOTE: See Appendix K for non-tapered
drive shafts. Remove the hollow shaft cover
from the input side of the hollow shaft bore and
save. Separate contents from the drive shaft
kit. Install thrust plate and retaining ring in the
hollow shaft, Figure 5. When the drive is a size
Figure 4
HOLLOW
SHAFT
RETAINING
RING
THRUST
PLATE
OUTPUT
SIDE
Figure 5
DRIVE SHAFT
DRIVESHAFT
MECHANICAL LIP SEAL
TROUGH END
GASKET
THROUGH END SPACER
(SIZE 5107 WITH 2.437” (61.9 mm)
& 3.000” (76.2 mm) DRIVE SHAFTS ONLY)
Figure 6
a. WASTE PACKING SEAL (Figure 7) — Slide drive
shaft thru seal housing. Insert key into drive shaft and
slide drive shaft into hollow shaft. The seal housing
registers into the basic drive seal bore. Install the drive
shaft thrust plate fastener thru thrust plate and torque
to the value specified in Table 3. Use the seal housing
fasteners to secure the seal housing to the basic drive
housing. Refer to Table 4 for proper torque value.
Reinstall hollow shaft cover. Pack seal housing with
waste packing and proceed to Step 5.
TABLE 3 — JR & JSC Thrust Plate Fastener
Data (Non-Lubricated Fasteners)
DRIVE
SIZE
Fastener Size
& Grade Torque lb-ft (Nm)
Min Thread
Depth Inches
(mm)
5107 .500-13UNC x 3.25, GR. 8 92 (125) 2.00 (50.8)
5115 .500-13UNC x 3.25, GR. 8 92 (125) 2.00 (50.8)
5203 .625-11UNC x 3.50, GR. 8 183 (248) 2.00 (50.8)
5207 .625-11UNC x 3.50, GR. 8 183 (248) 2.00 (50.8)
5215 .875-9UNC x 3.50, GR. 8 533 (723) 2.50 (63.5)
5307 1.00-8UNC x 4.00. GR. 5 567 (769) 2.75 (69.8)
5315 1.00-8UNC x 4.00. GR. 8 792 (1074) 2.75 (69.8)
cFastener lengths given are for applications using tapered drive shafts.
Other lengths may be needed for applications using tapered bushings.
1.00-8UNC x 3.50, GR. 5 for 5307JF.

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 6 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
TROUGH END
TROUGH END
MOUNTING FASTENERS
DRIVE SHAFT
TROUGH END GASKET
SEAL HOUSING
INSERT
HOLLOW SHAFT COVER
SEAL HOUSING FASTENERS
WITH LOCK WASHERS
WASTE PACKING
BASIC DRIVE
DRIVE SHAFT KEY
THRUST PLATE
RETAINING RING
THRUST PLATE
DRIVE SHAFT THRUST
PLATE FASTENER
TABLE 4 — Seal Housing & Trough End
Fastener Size – UNC & Tightening
Torque (Non-Lubricated Fasteners)
Fastener
Location
DRIVE SIZE
5107 5115 5203 5207 5215 5307 5315
Seal Housing
Fasteners
lb-ft (Nm)
.500-13
69 (94)
.625-11
137 (186)
.750-10
245 (332)
.875-9
380 (515)
1.000-8
567 (769)
1.000-8
792 (1074)
1.000-8
792 (1074)
Trough End
Fasteners
lb-ft (Nm)
1.500” Diameter Drive Shaft
.500-13 Fasteners
69 (94)
2.000” & 2.437” Diameter Drive Shafts
.625-11 Fasteners with Nuts — 137 (186)
3.000” & 3.437” Diameter Drive Shafts
.750-10 Fasteners with Nuts — 245 (332)
Figure 7
b. LIP SEAL (Figure 8) — Coat outside diameter of
seal with Permatex #3 or equivalent. Drive seal into
seal housing with the spring-loaded seal lip away
from the driver. Wrap the keyway on tapered shank
of drive shaft with masking tape or lightweight Kraft
paper to protect against damaging the seal lips.
Coat the seal lips and straight portion of the drive
shaft with bearing grease. Line up the keyway in
the drive shaft with the hollow shaft keyway and
insert the drive shaft into the seal housing. Remove
the protective wrap and install the drive shaft key.
Insert the drive shaft into the hollow shaft. The seal
housing registers into the basic drive seal bore.
Use the thrust plate fastener, Figure 7, to secure the
drive shaft. Refer to Table 3 for proper torque value.
Install the seal housing fasteners to secure the
seal housing to the basic drive. Refer to Table 4 for
proper torque value. Reinstall hollow shaft cover and
proceed to Step 5.
SHAFT
BUTTJOINT
PACKINGGLANDROPE
CUT
PACKING GLAND RING
AFTER CUTTING
(TWO REQUIRED)
PACKING GLAND (TWO RINGS)
DRIVE SHAFT
TROUGH END
INSERT
COMPRESSION RING
COMPRESSION RING
FASTENER WITH
FLAT WASHER
Figure 8
Figure 9
Figure 10
c. PACKING GLAND SEAL (Figure 10) — First, wrap
the packing around the drive shaft adjacent to the
tapered portion of the drive shaft as shown in Figure
9. Cut the packing to produce two complete split
seal rings
CAUTION: Do not mar the shaft’s seal surface.
DRIVE SHAFT INSERT
TROUGH END
TROUGH END
MOUNTING FASTENERS
TROUGH END GASKETS
(SIZE 5107 WITH 2.437” &
3.000” DRIVE SHAFTS ONLY)
TROUGH END GASKET
SEAL HOUSING
MECHANICAL LIP SEAL
TROUGH END SPACER
(SIZE 5107 WITH 2.437” &
3.000” DRIVE SHAFTS ONLY)

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 7 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
Remove packing rings from the drive shaft and slide
the drive shaft through the seal housing. Install seal
rings into the seal housing. Stagger the seal joints
approximately 90° apart. Slip the compression ring
into place. Use fasteners with flat washers to hold the
ring but DO NOT tighten at this time. Install key in the
drive shaft keyway and then install the drive shaft into
the hollow shaft. Use the thrust plate fastener, Figure
7, to secure the drive shaft. Refer to Table 3 for torque
value. Use the seal housing fasteners to secure the
seal housing to the basic drive. Refer to Table 4 for the
torque value. Reinstall the hollow shaft cover. To adjust
packing seal, rotate input shaft to test the resistance.
Tighten the compression ring fasteners evenly until
an additional resistance can be detected when the
high-speed shaft is rotated. DO NOT OVERTIGHTEN
– this can cause premature seal wear and possible
overheating. Proceed to Step 5.
5. JSC — Fasten the trough end to the seal housing using
the hex head cap screws included in the drive shaft kit.
Refer to Table 4 for torque value. Proceed to Step 7.
6. JF — Install backstops prior to installation of the drive
(refer to Appendix B). If an adapter flange is provided,
assemble it to the drive using fasteners provided with
the flange. Refer to Table 5 for fastener selection and
torque value. Remove the input side hollow shaft cover.
The standard method for connecting a flange-mounted
drive to the driven shaft is to prepare the driven shaft
per Appendix H and mount the drive to the tapered
shaft using a thrust plate kit with fastener as shown in
Table 3. An optional method of connection should be
used when replacing existing drives with special shafts
or when producing tapered shafts is impractical.
This optional method uses a TA tapered bushing as
outlined in Appendix J.
SLING FROM
LONG FASTENER
WITH NUT
SLING AROUND
SEAL HOUSING
ANDINPUT SHAFT
SLING FROM
EYEBOLTS
TABLE 5 — Flange-Mounted Drive – Foundation
Fastener Size & Tightening
Torque (Non-Lubricated Fasteners)
DRIVE
SIZE Fastener Size and Grade
Torque
lb-ft
(Nm)
Min Fastener
Engagement
Into Drive
Housing
Inches (mm)
5107 .500-13UNC, GR.5 69 (94) .76 (19.3)
5115 .625-11UNC, GR.5 137 (186) .94 (23.9)
5203 .750-10UNC, GR.5 245 (332) .76 (19.3)
5207 .875-9UNC, GR.5 380 (515) .88 (22.4)
5215 1.000-8UNC, GR.5 567 (769) 1.00 (25.4)
5307 1.000-8UNC, GR.8 792 (1074) 1.24 (31.5)
5315 1.000-8UNC, GR.8 792 (1074) 1.24 (31.5)
INSTALLATION
7. JR, JF, & JSC — Refer to Figure 11 for recommended lifting
method. In order to sling JR & JF as illustrated, remove
a housing flange fastener and install a long fastener with
nut. For vertical installation, use (3) eye bolts as illustrated.
Eyebolt sizes are 5/16” for 4107 and 4115, 3/8” for 4203 and
1/2” for 4207 thru 4315. DO NOT remove sling until drive is
secured to shaft. Before lifting the drive into position, rotate
the high-speed shaft until the hollow shaft keyway will be in
position to line-up with the driven shaft key. JF proceed to
Step 12; JSC to Step 13.
8. JR — If the drive was received with a backstop
installed, the backstop must be temporarily removed to
facilitate mounting.
Refer to Section II, Figure 19 and remove cover Ref.
#16 and backstop Ref. #5A1.
9. JR — Lift the drive into position and slide onto the
drive shaft taking care that the driven shaft key seats
into the hollow shaft keyway. DO NOT hammer or use
excessive force. Refer to Figure 12 for installation of
the torque arm. The exact position of the tie rod may
vary within the range shown. For torque arm mountings
other than shown, refer to Rexnord. If it is necessary
to shorten the torque arm, cut the excess from either
threaded end.
The support to which the clevis bracket is to be
fastened must sustain the torque reaction shown
in Table 8. The maximum load reaction through the
torque arm occurs when the torque arm is located
in the extreme (30°) off angle position. Use Grade 5
fasteners to anchor the clevis bracket; see Table 7 for
the fastener diameter and tightening torque.
Bolt the tie rod to both the clevis bracket and the
drive anchor bracket and tighten the bolts until seated
against the brackets. DO NOT bend the bracket as
clearance between the clevis brackets and tie rod is
necessary.
Figure 11

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 8 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
2°
30°
HOUSING FLANGE
FASTENERS
2°
30° MAX
ANCHOR BRACKET CLEVIS
BRACKET
5107 & 5115
HIGH-
SPEED
SHAFT
TORQUE ARM
FASTENER
MAX
2°
ANCHOR
BRACKET
HIGH-
SPEED
SHAFT
TORQUE ARM
FASTENER
5203 THRU 5315
PREFERRED MOUNTING
CLEVIS
BRACKET
30° MAX
2°
30°MAX
HIGH
SPEED
SHAFT
ANCHOR
BRACKET
TORQUE ARM
FASTENER
CLEVIS
BRACKET
5203 THRU 5315
ALTERNATE MOUNTING
-
TABLE 6 — Spanner Wrench Type &
Spanner Nut Tightening Torque
DRIVE
SIZE
Adjustable Hook Spanner Wrench Spanner Nut
Tightening Torque
lb-ft (Nm)
GearWrench Williams
5107 81856 (2" to 4-3/4") 474 83 (113)
5115 81856 (2" to 4-3/4") 474 83 (113)
5203 81856 (2" to 4-3/4") 474 167 (226)
5207 81857 (4-1/2" to 6-1/4") 474A 167 (226)
5215 81857 (4-1/2" to 6-1/4") 474A 250 (339)
5307 81857 (4-1/2" to 6-1/4") 474A 250 (339)
5315 81858 (6-1/8" to 8-3/4") 474B 250 (339)
TABLE 7 — Torque Arm Clevis Bracket
Fastener Tightening Torque
DRIVE
SIZE
Fastener 
Size
Tightening Torque – lb-ft (Nm)
Steel Foundation Concrete Foundation
5107 .375-16UNC 28 (38) 21 (28)
5115 .375-16UNC 28 (38) 21 (28)
5203 .500-13UNC 69 (94) 53 (72)
5207 .500-13UNC 69 (94) 53 (72)
5215 .625-11UNC 137 (186) 107 (145)
5307 .750-10UNC 245 (332) 191 (259)
5315 1.000-8UNC 567 (769) 467 (633)
cGrade 5 fasteners required.
Figure 12 TABLE 8 — Load Reaction Through Torque Arm
DRIVE
SIZE 5107 5115 5203 5207 5215 5307 5315
Load
lb (N) 2440
(10850)
3810
(16940)
4680
(20810)
6750
(27790)
9160
(40720)
12963
(57660)
15890
(70700)
cLoad includes moment due to motor and motor mount with torque arm at
maximum angle.
10. JR — Thread the bushing nut onto the hollow shaft
one to two turns. NOTE: The bushing nut threads
have been coated with an anti-seize compound at
the Factory. This compound should not be removed.
Before re-installing a previously used nut, re-coat the
nut threads only with an anti-seize compound.
Note: In extremely severe or corrosive environments,
additional anti-seize compound MUST be applied to
the threads of the TA bushing nut.
WARNING: DO NOT apply anti-seize or lubricant to bushing or
shaft surfaces. Use of anti-seize may prevent secure connection
of the drive to the shaft and cause the drive to move.
WARNING: Overtightening can fail the internal retaining
ring (see Appendix G, for listing of retaining rings).
a. PREFERRED METHOD — Use a spanner (Table 6),
chain or pipe wrench to tighten the bushing nut to
the torque value indicated in Table 6. Apply Loctite
243 or equivalent to threads of setscrew. Tighten
the setscrew on the bushing nut to torque value
indicated in Table 6A.
b. ALTERNATE METHOD — (To be used when torque
cannot be measured.) Use a spanner (Table 6),
chain or pipe wrench to tighten the bushing nut
just until the drive can no longer be moved by hand
axially on the driven shaft. Loosen nut ONLY until it
can be turned by hand but do not unseat the taper.
Retighten the nut hand tight. Now mark a spot on
the top of the driven shaft. Next mark a spot on
the bushing nut 180° from the driven shaft mark
(90°CCW for sizes 5107 & 5115). Use the spanner
wrench to tighten the nut CW one half turn until the
two marks are aligned (one quarter turn for sizes
5107 & 5115). Apply Loctite 243 or equivalent to
threads of setscrew. Tighten the setscrew on the
bushing nut to torque value indicated in Table 6A.
11. JR — Install backstop, motor mount, motor, sheaves
(mount sheaves as close to the drive and motor housing
as possible), belts and guard. Refer to Appendix D for
motor mount installation instructions. Proceed to Step 14.
12. JF (USING TAPERED DRIVE SHAFT) — Put key into
the driven shaft. Lift drive into position and slide onto
the driven shaft taking care that the driven shaft key
seats into the hollow shaft keyway. DO NOT hammer
or use excessive force. Secure the drive to the shaft
with the thrust plate fastener. Refer to Table 3 for
torque value. Reinstall the hollow shaft cover. Install
motor mount, motor, sheaves, belts and guard. Refer
to Appendix D for motor mount installation instructions.
Proceed to Step 15.
DO NOT apply ANTI-SEIZE
on these areas.
TABLE 6A — Bushing Nut Setscrew –
Tightening Torque
DRIVE SIZE Setscrew Size Tightening Torque lb-ft (Nm)
5107 .250-20 5 (7)
5115-5207 .312-18 11 (15)
5215-5315 .375-16 19 (26)

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 9 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
13. JSC — Assemble drive to trough and install drive shaft
coupling bolts per screw conveyor manufacturer’s
instructions. Install motor mount, motor, sheaves, belts
and guard. Refer to Appendix D for motor mount
installation instructions. Proceed to Step 15.
14. JR — When the torque arm turnbuckle is used for
belt tension adjustment, position the motor so that the
belt pull will be about 90° to a line through the drive
high-speed shaft and hollow shaft as shown in Figure
13. For drives where the motor is moved to adjust belt
tension, mount the motor slide base so that the belt
tension adjustment is approximately parallel to the belt
centers. Refer to Appendix D for instructions relative to
alignment of sheaves and belts.
LUBRICATION
CAUTION: Drives shipped without oil.
15. JR, JF, & JSC — Refer to Appendix A for selection of
lubricant. Refer to Table 9 at right for approximate oil
capacity of drives.
16. JR, JF, & JSC — HORIZONTAL MOUNTING
Remove air vent and oil level plug (refer to Step 1). Fill
the drive until oil shows in the oil level hole. Coat the air
vent and plug threads with #3 Permatex or equivalent
thread sealant before replacing.
JRV, JFV, & JSCV — (VERTICAL MOUNTING) Refer
to Figure 1, Step 1.
Input Shaft DOWN — Remove the fill plug and fill with
oil to level marked on the dipstick.
Input Shaft UP — Remove the oil level and fill plugs
and fill until oil shows in the oil level hole.
Coat the plug threads with #3 Permatex or equivalent
thread sealant before replacing.
17. JR, JF, & JSC — Where applicable, pump grease into
the high-speed shaft seal cover with a Hand Grease
Gun, Figure 14, until fresh grease flows out along the
shaft. Wipe off excess grease from the shaft. DO NOT
use grease where it could contaminate the product,
e.g. foods, drugs, etc.
START UP
18. JR, JF, & JSC — Before operating the drive, check any
fasteners, pipe plugs, air vent, etc. which may have
been loosened in the course of outfitting, installing
and lubricating the drive to be sure that they have
been properly retightened. If a long fastener was
used to lift the drive into place, reinstall the housing
flange fastener and torque to the value shown in Table
1. After one week of operation, repeat check of all
external fasteners and pipe plugs.
19. AFTER ONE MONTH OF OPERATION:
a. Operate the drive until the sump oil reaches
normal operating temperature. Shut the drive down
and drain immediately.
b. Immediately flush the drive with an oil of the
same type and viscosity grade as the original
charge (warmed to approximately 100°F (38°C) in
cold weather). Rapidly pour or pump a charge
equal to 25-100% of the initial fill thru the drive, or
until clean oil flows thru the drain.
c. Close the drain and refill the drive to the correct
level with new oil of the correct type and viscosity.
BELT TENSION ADJUSTED
WITH TORQUE ARM
PARALLEL
BELT TENSION ADJUSTED
WITH MOVABLE MOTOR
HIGH-SPEED SHAFT
TABLE 9 — Approximate Oil Capacity –
Quarts (Liters) 
DRIVE SIZE JR, JF, & JSC JRV & JFV
5107 2 (1.9) 3 (2.8)
5115 3 (2.8) 4.5 (4.3)
5203 3.5 (3.3) 5 (4.7)
5207 5.5 (5.2) 7.5 (7.1)
5215 9 (8.5) 13 (12.3)
5307 13 (12.3) 18 (17)
5315 15 (14.2) 21 (19.9)
cQuantities are approximate. Always fill drive to specified level.
Figure 13
Figure 14

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 10 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
Section II
DRIVE SERVICE & REPAIR
PREVENTIVE MAINTENANCE
PERIODICALLY — Carefully check the oil level of the drive
when it is stopped and at ambient temperature; add oil if
needed. If the oil level is above the specified level, have
the oil analyzed for water content. Moisture in the oil may
indicate seal leakage or condensation. If so, correct the
defect immediately and change the oil. DO NOT overfill or
oil leakage may result. If a drive is equipped with a fan,
periodically clean accumulated foreign matter from the fan
and fan guard to allow adequate air flow.
GREASE PURGED SEALS — Periodically (at least every
six months), depending upon the frequency and degree
of contamination, purge contaminated grease from seal
by slowly pumping fresh bearing grease through the seal
cage, WITH A HAND GREASE GUN, until fresh grease
flows out along the shaft. Wipe off the purged grease.
Refer to Appendix A.
PACKING GLAND SEAL — Section I, Step 4(C)
OIL CHANGES
Refer to the Lubrication Recommendations Section in
Appendix A.
STORED & INACTIVE GEAR DRIVES
Each drive is protected with a rust preventive that will
protect parts against rust for a period of 4 months in
an outdoor shelter or 12 months in a dry building after
shipment from the Factory.
If a gear drive is to be stored, or is inactive after installation
beyond the above periods, add Nox-Rust VCI-10 vapor-
phase rust inhibitor. For drives that have oil installed, add
Nox-Rust VCI-10 vaper-phase rust inhibitor at the rate of
2% of sump capacity. For drives without oil, add Nox-Rust
VCI-10 vapor-phase rust inhibitor at the rate of one ounce
per cubic foot of internal drive space. Rotate the shafts
several times by hand. Before operating, drives which have
been stored or inactive must be filled to the proper level
with oil meeting the specifications given in this manual.
Refer to Manual 128-014 for "Start-up after Storage"
instructions.
cProduct of the Daubert Chemical Company, Chicago, Illinois.
Periodically inspect stored or inactive gear drives and
add Nox-Rust VCI-10 every six months, or more often if
necessary. Indoor dry storage is recommended.
The air breather should be replaced with a plug (air
breather should be attached to gear drive for future use)
so that the protective rust inhibiting atmosphere is sealed
inside the drive. Install air breather when preparing drive
for operation.
WARNING: The rust preventative oil from the factory
and Nox-Rust VCI-10 are not H1 registered with the NSF
(National Sanitation Foundation) as suitable for food
processing applications. When Food Grade Lubricants are
to be used, it is the end users responsibility to properly
flush and prepare the drive for Food Grade service.
Contact the lubricant manufacturer for specific information
and flushing procedures.
REPAIR & REPLACEMENT
WARNING: Consult applicable local and national safety
codes for proper guarding of rotating members. Lock out
power source and remove all external loads from drive
before servicing drive or accessories.
NOTE: Only the seals on the input side of the drive can
be replaced without removing the drive from the driven
equipment. All other repairs require removal of the drive
from the driven equipment. Proceed to Step 1 for drive
removal. Proceed to Step 5 for replacement of seals.
Removal (See above note for seal replacement only)
1. JR, JF & JSC — Drain the lubricant at this time.
Remove safety guards and belts (motor and motor
mount, optional). Remove backstop (if so equipped).
Refer to Section II, Step 10, for backstop removal
instructions.
WARNING: Drive must be supported during removal
process. Use a sling around the motor mount or as
recommended in Section I, Step 7. Take up the slack in the
sling before proceeding.

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 11 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
2. JR — Refer to Appendix C for instructions on using the
TA Torque Assist Removal Tool.
Alternate Method — Loosen the setscrew on the
bushing nut, which is located at the output end of the
hollow shaft. Use a spanner, pipe or chain wrench to
loosen the bushing nut (Section I, Table 6). Initially, the
nut will freely rotate counter-clockwise approximately
180° as the nut moves from the locked position to the
removal position. At this point anticipate resistance
which indicates unseating of the bushing. Continue to
turn the nut until it is free from the hollow shaft. Prepare
drive for lifting by disconnecting the torque arm at
the drive end. Slide the drive from the bushing. The
bushing can be left in place or removed, as required.
If bushing will not slide off of the shaft, insert a small
pry bar into the split of the bushing and pry the split
open slightly to loosen the bushing and remove from
the shaft. Proceed to Step 5 for replacement of seals
or Step 9 for drive disassembly procedure.
3. JF & JSC — Remove the cover from the input end of
the hollow shaft.
JF — Remove the bolts which fasten the drive to the
driven equipment.
JSC — (a) If the drive is to be removed from the drive
shaft, remove the seal housing fasteners (Figure 7,
Section I), or (b) if the drive is to be removed with the
drive shaft attached, remove the trough end mounting
fasteners and drive shaft coupling bolts. Remove the
assembly from the trough.
JF & JSC — Remove the thrust plate, fastener and
retaining ring from the hollow shaft. Refer to Table 10
and select a backing bolt and flat washer and install
them into the drive shaft as illustrated in Figure 15. The
head of the backing bolt provides a working surface
for the removal bolt. Reinsert the thrust plate and
retaining ring into the hollow shaft and select a removal
bolt from Table 10. Thread the removal bolt into the
thrust plate until it contacts the backing bolt head.
Torque the removal bolt to the value shown in Table
10 (if the thrust plate rotates in the shaft, align the slot
in the plate with the hollow shaft keyway and insert a
screwdriver or piece of key stock to prevent rotation of
the plate). After torquing the bolt as instructed, strike
the bolt sharply with a hammer and re-torque the bolt
if separation of the drive from the shaft did not occur.
Repeat this procedure, re-torquing the bolt after each
blow, until separation occurs.
CAUTION: Failure to follow this procedure may result
in the destruction of the threads in the thrust plate
(if the retaining ring becomes damaged, refer to
Appendix G, for replacement information).
Proceed as follows:
JF to Step 5 for replacement of Quadrive seals only OR
Step 9 for drive disassembly procedure.
4. JSC — If the drive was removed with the seal housing
and the drive shaft attached, remove the seal housing
fasteners to separate the seal housing and drive
shaft from the drive. After separation of the drive and
shaft has been achieved, determine the type of seal
equipped in the seal housing. If it is a waste packing
seal (Figure 7, Section I), a packing gland seal
(Figure 10, Section I) or a lip seal (Figure 8, Section I),
proceed as follows for removal of the drive shaft from
the seal housing:
a. PACKING GLAND SEAL — Remove the key from
the drive shaft keyway. Loosen the compression
ring fasteners. Remove the seal housing toward the
tapered end of the drive shaft.
b. LIP SEAL — Remove the key from the drive shaft
keyway. Remove any burrs from the tapered end
of the shaft and wrap the entire length with masking
tape or a lightweight Kraft paper to protect the
seal lips during removal. Carefully remove the seal
housing toward the tapered end of the drive shaft.
For replacement of Quadrive seals only proceed to
Step 5, otherwise to Step 9.
c. WASTE PACKING SEAL — Remove the key from
the drive shaft keyway. Remove the waste packing
material and remove the seal housing toward the
tapered end of the drive shaft.
TABLE 10 — Removal & Backing Bolt Size &
Length
DRIVE SIZE
Removal Bolt
Size & Minimum
Length - Inches
Maximum
Tightening
Torque
lb-ft (Nm)
Backing Bolt
Size & Maximum
Length - Inches
5107 0.625-11UNC x 1.75 133 (180) 0.500-13UNC x 1.25
5115 0.625-11UNC x 1.75 133 (180) 0.500-13UNC x 1.25
5203 0.750-10UNC x 2.00 242 (328) 0.625-11UNC x 1.75
5207 0.750-10UNC x 2.00 242 (328) 0.625-11UNC x 1.75
5215 1.000-8UNC x 2.50 567 (769) 0.875-9UNC x 2.25
5307 1.125-7UNC x 3.00 742 (1006) 1.000-8UNC x 2.50
5315 1.125-7UNC x 3.00 742 (1006) 1.000-8UNC x 2.50
BACKING BOLT TAPPED HOLE
IN DRIVE SHAFT
DRIVE SHAFT
FLAT WASHER
REMOVAL
BOLT
THRUST
PLATE
RETAINING
RING
HOLLOW
SHAFT
Figure 15

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 12 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
DRIVE DISASSEMBLY — (Refer to Parts Drawing
Figure 19)
Prior to initiating any disassembly or repair, clean
accumulated dirt and grime from the surface of the drive
housing. Clean the exposed portion of the input and
output shafts with a solvent and a non-abrasive cloth. If
only the seals are being replaced, proceed to Step 5. If
the drive will be disassembled for inspection or repair,
remove input side seal covers, Ref. #13 & 15, as illustrated
in Figure 16, then skip to Step 9.
CAUTION: Do not damage shaft. New seals will leak if seal
contacting surface is marred. Do not use abrasive material
on shaft seal contacting surface.
5. SEAL REMOVAL — The input side low-speed and
high-speed shaft seals, Ref. #19 & 20, respectively,
can be replaced without removing drive from the
driven shaft. Remove input side seal covers, Ref. #13 &
15, as illustrated in Figure 16.
a. Remove all sharp edges from shaft extension. Use
a sharp center punch to lightly punch the seal
case as a guide for drill bit. NOTE: Seals are not
axially restrained. DO NOT drive seal into bore too
deep, or disassembly of drive may be required to
extract seal.
b. Wrap several turns of tape around the drill bit
approximately .250” (6 mm) from the drill point to
prevent the drill bit from entering too deeply into
the housing and damaging the bearing. Grease
or magnetize the drill bit to help retain the chips.
Drill two .125” (3 mm) diameter holes in the seal
case 180° apart. Control the angle of the drill as
illustrated in Figure 17 to prevent damage to the
shaft.
c. Insert two #10-.750” (M5 x 20) sheet metal screws
into the seal case leaving .5” (13 mm) of the screw
protruding above the seal face. DO NOT drive the
screw more than .25” (6 mm) beyond seal face or
bearing damage may occur. Use a claw type pry
bar under the screw head as shown in Figure 17 to
lift seal out. Remove all metal chips. Use a magnet
to remove the metal chips that fall into the bore.
Flush the drive to remove chips from the bearing.
Remove Permatex from the housing bore.
6. SEAL SURFACE CONDITION — Carefully inspect
polished surface of shaft where the seal makes
contact. If the seal surface shows any sign of a nick,
scratch, spiral swirl or groove, the shaft should be
replaced or refurbished to prevent leakage of the
lubricant. (In many instances, the seal surface can be
restored by use of a thin wall wear sleeve. Check with
your local seal supplier and follow the manufacturer’s
instructions for installing the wear sleeve.)
REF # 13
REF # 15
WRONG WAY
RIGHT WAY
Figure 16
Figure 17

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 13 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
7. SEAL INSTALLATION
CAUTION: Protect seal lips from sharp edges of
the keyway by wrapping thin, strong paper around
the shaft and coating the paper and seal lips with
grease before sliding the seal on or off the shaft. Do
not expand the seal lips more than .030” (0.75 mm)
diameter.
a. Coat O.D. of seal with #3 Permatex or equivalent
sealant. Position seal squarely in seal bore with
the garter spring toward bearing. Place a square
ended cylindrical tool against seal and press or
lightly tap tool (not seal) until seal outer wall is
seated .14” (3.5 mm) inside the seal bore outer
wall.
CAUTION: A shaft shoulder is NOT provided for
stopping seal. DO NOT seat seal against bearing.
b. Measure seal axial run-out with a dial indicator
mounted on the shaft. If the seal axial run-out is
more than .010” (0.25 mm), tap high side of seal
with installation tool until seal axial run-out is .010”
(0.25 mm) or less.
c. Remove shaft wrapping and reinstall the input side
seal covers, Ref. #13 and 15.
8. DRIVE REPAIR IS COMPLETE — Review instructions
in Section I for reassembly of drive onto driven shaft.
9. When seals, Ref. #19 & #20, are to be reused
(replacement is recommended), wrap the input shaft
keyway and output shaft threads with masking tape
or lightweight Kraft paper to protect seal lips during
disassembly. Cover wrapping with a light coat of
grease.
10. If drive is equipped with a backstop, remove output
side end cover Ref. #16, gasket Ref. #23, backstop
Ref. #5A1, and key Ref. #5A4 from output housing Ref.
#11 (note the direction of rotation of the input shaft for
proper reassembly).
11. Lay drive on bench with input shaft down. Remove
housing flange fasteners, Ref. #25. Tap out dowel pins.
SIZE 5115J05 — Remove fasteners from retaining
plate, Ref. #3A6.
SIZES 5203 THRU 5315 — Use one of the housing
flange fasteners as a jackbolt to separate input and
output housing halves using the tapped hole on input
housing flange provided for this purpose. Carefully lift
off output housing, Ref. #11.
12. Remove the shaft assemblies (J05 - 3A & 4A; J09, J14
or J25 -1A, 2A, & 4A) from input housing, Ref. #10.
13. Drive seals out from input and output housing bores
if replacement is indicated. Remove gasket material,
seal compound and any accumulated foreign matter
from seal joints, bores and adjacent sealing surfaces.
Use a solvent to clean housing and shaft assemblies.
CAUTION: On sizes 5203 thru 5315, tapered roller
bearing cups are assembled in input housing with
a slight clearance fit. In addition, metal shims for
adjusting bearing preload and axial float are installed
behind bearing cups in housing. When handling input
housing, be careful that bearing cups and shims do
not fall out of input housing.
14. If drive is equipped with a backstop, check the shaft
surface and backstop sprags (inside diameter) for
signs of wear. If either component shows evidence
of wear, both should be replaced (Ref. #1A and 5A or
Ref. #3A and 5A assemblies). Also refer to Step 6 for
inspection of seal surfaces.
15. Inspect gear teeth for wear or indications of fatigue
e.g. hairline cracks at root of tooth. If one element has
undergone severe wear or broken teeth, replace the
mating element also.
16. Clean and inspect bearings for wear. Lubricate with
light oil before spinning to avoid scoring of working
surfaces. Remove any worn bearings with a wheel
puller. When replacing tapered roller bearings,
replace both cups and cones. DO NOT use new cone
assemblies with worn (old) cups.
17. Use a wheel puller or press to remove gears Ref.
#1A4 or 4A4 from the shaft. Exercise caution to avoid
scoring shaft seal diameter with the keyway of gear.
18. Inspect all fasteners for damage or wear and replace
with fasteners of equal grade. Grade 5
fasteners have three (3) radial lines on the
head. Fasteners are available in kit form,
Ref. #80.
19. If the shaft assemblies can be reused intact (no new
parts required), refer to Section III, Steps 6 thru 9, for
reassembly procedure. Replace all shim-gaskets with
new parts, Kit Ref. #100. On sizes 5107 and 5115, use
the same thicknesses as removed during disassembly.

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 14 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
IDENTIFYING & ORDERING PARTS
1. Refer to the drive component diagram, Figure 18, and
exploded parts diagram, Figure 19, and make a list
of the parts required by part reference number. For
example, Ref. #15, 20 100, 1A, 2A1, and 2A2. When a
gasketed joint is separated, always replace with new
shim-gaskets. Order Ref. #100 shim-gasket kit.
2. Now refer to the parts list, Table 11, and determine the
part description and Falk part number using the part
reference number (Step 1) and the drive identification
(e.g. 5107J25) in the column headers of the parts list.
3. Use the part description and Falk part number to order
the required parts. In the examples in steps 1 and
2, Ref. #15, 20, 100, 1A, 2A1 and 2A2 for a 5107J25
would be ordered as follows:
Seal cover . . . . . . . . . . .4723094
Seal . . . . . . . . . . . . . .2921419
Shim-gasket kit . . . . . . . .4729429
Shaft assembly with gear . . .4729373
Bearing . . . . . . . . . . . .2926359
Bearing . . . . . . . . . . . .2926359
4. Table 12 and 13 convert Falk part numbers to
bearing and seal manufacturer’s part numbers. Tooth
combinations are listed in Appendix G.
5. Place your order with your local Rexnord distributor. If
you need to locate a distributor, phone [phone]
in the United States or Canada.
RECOMMENDED SPARE PARTS
1. For non-critical drive applications, a complete set of
bearings, seals and shim-gaskets is recommended.
If stored in their original packaging in a dry, cool
location, these parts have a minimum shelf life of
five years.
2. For critical drive applications (where an outage would
create a major production loss), a complete drive is
recommended.
INPUT HOUSING HALF OUTPUT HOUSING HALF
LOW-SPEED
SHAFT COVER
LOW-SPEED
GEAR
METAL SHIMS
HIGH-SPEED
SEAL COVER
HIGH-SPEED
SHAFT ASSEMBLY
GASKET
ELIMINATOR
HIGH-SPEED PINION
GASKET
BACKSTOP
HIGH-SPEED
SHAFT COVER
(BACKSTOP COVER)
LOW-SPEED
PINION
LOW-SPEED
PINION
ASSEMBLY
HIGH-SPEED GEAR
AIR VENT
Figure 18

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 15 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
TYPE J05
TYPE
J09, J14&J25
4A5
4A2
4A3
4A1
4A4
2A1
2A5
2A4
2A2
2A6 2A3
1A4
1A2
1A1
1A5
1A3
3A2
3A1
3A4
3A3
4A5
4A2
4A3
4A4
4A1
27
16 23
17 23
5A ASSY
.
19
25 11
2A ASSY.
3A ASSY.
4A ASSY.
29
30
10
25
13
19
15
22
24
31
20
29
5A5
5107J &
5115J ONLY
4A ASSY.
1 ASSY.
5A2 5A1
5A6
23
5A4
6A1
6A4
5215 THRU 5315
6A3
6A ASSY
.
5115 J25
ONLY
5A3
Figure 19

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 16 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
TABLE 11 — Parts List of Falk Part Numbers
Ref.
No Part Description
DRIVE SIZE
5107 5115 5203 5207 5215 5307 5315
Housing Components
13 Shaft Cover-LS 2109906 1164350 1164353 2110134 1164359 2110504 2110779
15 Seal Cover 4723094 4723095 4723096 4723097 4723098 4723099 4723109
16 Shaft Cover 1161865 1161866 1238030 2119130 1161870 1161870 1161870 
16 Shaft Cover W/BKSP 1243290 1161866 1238019 2119130 1219342 1237944 1219342
17 Cover Spacer BKSP 1243292 1243296 2119132
19 Seal, 2916797 2921425 2921422 2921421 2904606 2921423 2922295
20 Seal, HS 2921419 2921416 2902929 2921417 2921420 2916797 2920669
30 Air Vent 0914088 0914088 0914088 0914088 0914088 0914088 0914088
80 Fastener Kit 4729000 4729000 4729032 4729049 4729064 4729082 4729100
100 Shim & Gasket Kit 4729429 4729430 0786836 0786837 0786838 0786839 0786840
Rotating Elements — J05
3A Shaft Ass'y-Inc 3A1-3A4 4729363 4729377 4729045 4729061 4729076 4729094 4729112
3A1 Bearing 2926357 2926361 2919339 2918700 2919359 0921354 2919215
3A2 Bearing 2926357 2919340 2919340 0921521 2919360 2916263 0921853
3A3 Pinion & Shaft-Inc 3A4 4729364 4729378 4729046 4729062 4729077 4729095 4729113
4A Shaft Ass'y-Inc 4A1-4A5 4729365 4729033 4729047 4729063 4729078 4729096 4729114
4A1 Bearing 4729014 4720891 2911822 2905191 0921778 0921727 0921366
4A2 Bearing 4729014 4720891 2911822 2905191 0921778 0921727 0921366
4A3 Hollow Shaft w 4A5 Key 4729016 4723015 4723028 4723039 4723050 4723061 4723073
4A4 Gear 1242585 1238105 1242878 1237897 1242848 1242860 1237763
5A Backstop Ass'y 0795654 0793995 0785596 0783905 0785610
Rotating Elements — J09
1A Shaft Ass'y W/O 1A4 Gear 4729366 4729380 4729037 4729053 4729068 4729086 4729104
1A Shaft Ass'y With 1A4 Gear 4729367 4729381 4729034 4729050 4729065 4729083 4729101
1A1 Bearing 2926357 2926361 2919339 2918700 2919359 0921354 2919215
1A2 Bearing 2926357 2919340 2919340 0921521 2919360 2916263 0921851
1A3 Pinion & Shaft w 1A5 Key 4729368 4729382 4729041 4729056 4729071 4729089 4729107
1A4 Gear 1242532 1242536 1242834 1242842 1242849 1242857 1242861
5A Backstop Ass'y 0795654 0793995 0785596 0783905 0785610 0785529 0757183
Rotating Elements — J14
1A Shaft Ass'y W/O 1A4 Gear 4729369 4729383 4729038 4729054 4729069 4729087 4729105
1A Shaft Ass'y With 1A4 Gear 4729370 4729384 4729035 4729051 4729066 4729084 4729102
1A1 Bearing 2926357 2926361 2919339 2918700 2919359 0921354 2919215
1A2 Bearing 2926357 2919340 2919340 0921521 2919360 2916263 0921851
1A3 Pinion & Shaft w 1A5 Key 4729371 4729385 4729042 4729057 4729072 4729090 4729108
1A4 Gear 1242533 1242537 1242833 1242843 1242850 1242858 1237856
1A5 Backstop Ass'y 0795654 0793995 0785596 0783905 0785610 0785529 0757183
Rotating Elements — J25
1A Shaft Ass'y W/O 1A4 Gear 4729372 4729386 4729039 4729055 4729070 4729088 4729106
1A Shaft Ass'y With 1A4 Gear 4729373 4729387 4729036 4729052 4729067 4729085 4729103
1A1 Bearing 2926357 2926361 2919339 2918700 2919359 0921354 2919215
1A2 Bearing 2926358 2926359 2919340 0921521 2919360 2916263 0921853
1A3 Pinion & Shaft w 1A5 Key 4729374 4729388 4729043 4729058 4729073 4729091 4729109
1A4 Gear 1242534 1238106 1238017 1242844 1242851 1242859 1237764
1A5 Backstop Ass'y 0795655 0795658 0785596 0783905 0785610 0785529 0757183
Rotating Elements — J09, J14, & J25
2A Shaft Ass'y-Inc 2A1-2A6 4729375 4729389 4729040 4729059 4729074 4729092 4729110
2A1 Bearing 2926359 2926360 2919338 2918700 0921350 0921793 0921850
2A2 Bearing 2926359 2926360 2919338 2918701 2916288 0921793 0921850
2A3 Pinion & Shaft w 2A4 Key 4729376 4729390 4729044 4729060 4729075 4729093 4729111
2A5 Spacer 1179876 1179877
2A6 Spacer 1161925 1163034 1161889 1163762 21200246
4A Shaft Ass'y-Inc 4A1-4A5 4729365 4729033 4729047 4729063 4729078 4729096 4729114
4A1 Bearing 4729014 4720891 2911822 2905191 0921778 0921727 0921366
4A2 Bearing 4729014 4720891 2911822 2905191 0921778 0921727 0921366
4A3 Hollow Shaft w 4A5 Key 4729016 4723015 4723028 4723039 4723050 4723061 4729115
4A4 Gear 1242585 1238105 1242878 1237897 1242848 1242860 1237763
Continued on next page.

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 17 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
TABLE 11 — Parts List of Falk Part Numbers (Continued from Page 16)
Ref.
No. Part Description
DRIVE SIZE
5107 5115 5203 5207 5215 5307 5315
Shaft Fan Assembly — All Ratios
6A Shaft Fan Ass'y Inc 6A1-6A4 . . . . . . . . . . . . 0785611 0785530 0785432
6A1 Fan . . . . . . . . . . . . 4729079 4729097 4729116
6A3 Guard . . . . . . . . . . . . 4729080 4729098 4729117
6A4 Backplate . . . . . . . . . . . . 4729081 4729099 4729118
cFor sizes 5107J – 5203J, 4000J/5000J, revolving parts not necessarily interchangeable. Consult Service Parts Department.
For size 5315J05 only; use P/N 1161869.
TABLE 12 — Bearing Cross Reference Numbers 
Falk Part Number Manufacturer’s Number
Tapered Roller Bearings 
0921350 HM804843/HM804810
0921354 475/472
0921366 48393/48320
0921521 19138/19283-B
0921727 68462/68712
0921778 JM822049/JM822010
0921793 HM803149/HM803110
0921850 JHM807045/HM807010
0921851 46176/46368
0921853 46162/46368
2905191 497/492A
2911822 34478/34300
2916263 418/414
2916288 3879/3820
2918700 350A/352
2918701 339/332
2919215 HM813841A/HM813810
2919338 26112/26283-S
2919339 LM48548A/LM48510
2919340 17098/17244-B
2919359 386A/382A
2919360 3379/3320-B
2926357 30205M
2926358 30303M
2926359 30304M
2926360 30305M
2926361 30206M
4720891 29675/29620
4729014 JLM506810/JLM506849
cOther Falk suppliers of bearings that are considered equal to those
listed are: TRW, Fafnir, FAG and BCA.
Falk suppliers of Tapered Roller Bearings are: Timken, Bower, and
Tyson.
TABLE 13 — Viton Seal Cross Reference
Numbers
Falk Part Number Manufacturer’s Number 
Chicago Rawhide National
2902929 13661 . . .
2904606 42433 . . .
2916797 21091 . . .
2920669 23843 . . .
2921416 11207 470712V
2921417 15138 . . .
2921419 8704 481570V
2921420 18582 . . .
2921421 33699 . . .
2921422 29912 415995V
2921423 46155 . . .
2921425 27324 455315V
2922295 52498 . . .
cSubject to substitution of equivalent seals without notice.

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 18 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
Section III
DRIVE REASSEMBLY
REFER TO PARTS DRAWING FIGURE 19
1. GENERAL
a. Clean all parts to be reassembled and coat all
tapered roller bearing cups and pinion teeth with
an SAE 20 (or heavier) oil. DO NOT lubricate gear
teeth prior to assembly on shaft.
b. Heat all ball bearings and tapered roller bearing
cones in an oven to 275°F (135°C).
CAUTION: Do not apply flame directly to bearings
or rest bearings directly on a heated surface.
c. Slide or press all ball bearings and bearing cones
tight against the shoulder.
CAUTION: Do not apply force to the bearing rollers
or roller cage. Apply force against the inner race
only.
2. ASSEMBLY OF TAPERED ROLLER BEARING CUPS
a. SIZE 5107 THRU 5315 — Drive high-speed
bearing cup, Ref. #1A2 or 3A2, intermediate-speed
bearing cup Ref. 2A2, and low-speed bearing cup
4A2 squarely into their respective bearing bores of
output housing Ref. #11, with a press or steel bar
as shown in Figure 20
3. High-speed SHAFT ASSEMBLY — Ref. #1A or
3A Assembly.
Seat heated bearings cones, Ref. #1A1, 1A2
or 3A1 & 3A2, firmly against shaft shoulder or
retaining ring.
CAUTION: Allow bearings to cool. Apply a
coat of oil to the cooled bearings to lubricate
and avoid scoring of working surfaces.
Figure 20
PINION
SHAFT
EXTENSION
1A1 BEARING
RETAINING
RING 5107
THRU 5215
J25 ONLY
1A2 BEARING
Figure 21

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 19 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
4. INTERMEDIATE SHAFT ASSEMBLY — Ref. #2A
Assembly - Type J09, J14 and J25 - Figure 22. Prepare
bearings per Steps 1b and c on Page 18.
a. ALL SIZES — Heat gear Ref. #1A4 to 325°F (163°C)
in an oven. Insert key, Ref. #2A4, in shaft keyway.
Assemble gear onto shaft, with the chamfer toward
pinion, using a press to ensure a tight fit. Allow
gear to cool before proceeding.
b. Assemble spacer, Ref. #2A6, onto intermediate
shaft (except sizes 5307 and 5315). Seat bearings
or cones, Ref. #2A1 & 2A2, on shaft. Seat all
components firmly so spacers do not rotate on
shaft.
CAUTION: Allow assembly to cool. Apply a coat
of oil to the cooled bearings to lubricate and avoid
scoring of the working surfaces.
5. LOW-SPEED SHAFT ASSEMBLY — Ref. #4A
Assembly - ALL TYPES - Figure 23. Prepare bearing
cones per Steps 1b and c.
a. Heat gear, Ref. #4A4, to 325°F (163°C) in an
oven. Insert gear key, Ref. #4A5, into hollow shaft
keyway. Assemble the gear with the chamfer
toward the shoulder on the shaft using a press to
ensure a tight fit.
WARNING: Exercise care so that the gear keyway
does not contact the shaft seal diameter(s) as
scoring could occur.
b. Seat bearing cones, Ref. #4A1 & 4A2, firmly
against gear and shoulder.
CAUTION: Allow assembly to cool before
proceeding. Apply oil to the cooled bearing rollers
and gear teeth to lubricate and avoid scoring of
the working surfaces.
6. BEARING ADJUSTMENT
a. SIZES 5107 THRU 5315 — Bearing adjustment is
made by adjusting thickness of metal shims, Ref.
#24, behind bearing cups in input housing, Ref.
#10.
NOTE: The thickest shim should be located
adjacent to the bearing cup. The thinnest shims
should be located in the center of the shim pack.
(1) Support input housing, such that when high-
speed shaft assembly, Ref. #1A or 3A, is
lowered into place there is clearance for shaft
extension end. Install bearing cups in input
housing without any metal shims. Tap dowel
pins into input housing with solid pin nearest
high-speed shaft bore.
(2) Lower low-speed shaft assembly, Ref. #4A,
into input housing, Ref. #10, with threaded
end facing up (DO NOT install Ref. #1A [or 3A]
or 2A shaft assemblies at this time).
(3) Assemble output housing, Ref. #11, to input
housing. Install housing flange fasteners, Ref.
#25, with heads of cap screws against input
housing. Cross tighten fasteners to torque
specified in Table 14.)
(4) Measure low-speed shaft axial float with a
dial indicator, in accordance with method
described on the following page.
4A1 BEARING
4A4 GEAR
4A2 BEARING
4A3 HOLLOW SHAFT
SHAFT SEAL
DIAMETER
SHAFT SEAL
DIAMETER
Figure 22 2A1 BEARING
1A4
GEAR
2A5 SPACER
2A6 SPACER
2A2 BEARING
Figure 23
TABLE 14 — Housing Flange Fastener Size &
Tightening Torque ±5%
(Non-Lubricated Fasteners)
DRIVE SIZE Fastener Size Tightening Torque
lb-ft (Nm)
5107 .312-18 19 (26)
5115 .312-18 19 (26)
5203 .375-16 27 (37)
5207 .500-13 67 (91)
5215 .500-13 67 (91)
5307 .500-13 67 (91)
5315 .500-13 67 (91)

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 20 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
(5) Low-speed shaft axial float measurement — Ref.
#4A Assembly – For drives equipped with TA
Taper bushing, carefully thread bushing nut onto
hollow low-speed shaft threads. Rotate shaft to
seat cone assemblies in bearing cups. Set up a
dial indicator on output housing as illustrated in
Figure 24. Indicator tip must rest on low-speed
shaft and not on nut surface. Rotate and oscillate
shaft with axial force applied in both directions to
obtain axial float measurement.
For drives without the TA Taper bushing, insert
hollow shaft thrust plate and secure with retaining
ring as illustrated in Section I, Figure 5. Thread
a bolt into the thrust plate. Set up a dial indicator
on output housing, as illustrated in Figure 24, with
the indicator tip on end of hollow shaft. Rotate
and oscillate shaft with axial force applied in
both directions to obtain axial float measurement
(upward force can be applied by applying upward
force on head of thrust plate bolt).
Refer to Table 15 and note the preload specified
for bearings 4A1 and 4A2. Add to upper and
lower limits shown, the axial float measured.
This will indicate thickness of metal shim(s), Ref.
#31, to be added behind input housing bearing
cup to obtain the specified preload. Table 16
provides shim thickness for each shim pack to
assist in obtaining the desired results.
For example, from Table 15 the desired bearing
preload for the size 5203 low-speed shaft
bearings, Ref. #4A1 & 4A2, is .002” to .004”
(0.05 mm to 0.10 mm) tight. If the measured
axial float is .039” (0.99 mm) then addition of
metal shims with a total thickness between
.041” to .043” (1.04 mm to 1.09 mm) behind
the low-speed input housing bearing cup will
produce the desired preload.
(6) With drive resting on input housing cover, Ref.
#10, tap the dowel pins out of the housing,
remove flange fasteners and set output housing
aside. Remove low-speed shaft assembly
and bearing cups. Install metal shim(s), as
determined in Step 6b5, behind bearing cup in
input housing.
Reinstall dowels, shims and output housing
cover & torque housing flange fasteners, Ref.
#25, to value in Table 14. Proceed to Step 7.
(7) Lower low-speed, Ref. #4A, high-speed, Ref.
#1A (or 3A), and intermediate, Ref. #2A shaft
assemblies into input housing. Reinstall dowels
and output housing and torque flange fasteners
to value listed in Table 14. Recheck low-speed
shaft with dial indicator to ensure that no float is
present. Measure intermediate and high-speed
shaft float with a dial indicator in accordance
with methods described below.
(8) INTERMEDIATE SHAFT AXIAL FLOAT
MEASUREMENT — Ref. #2A Assembly –
Figure 25. Remove pipe plug from output
housing cover. Install a .375-16 x 2” size bolt
through hole in housing and turn by hand until
snug. Set up a dial indicator on output housing
with the indicator tip on bolt head as illustrated
in Figure 26. While turning bolt in a clockwise
direction, lift upward to measure axial float.
Subtract from this reading the axial float for the
Ref. #2A shaft assembly shown in Table 15.
This indicates the thickness of metal shim(s),
Ref. #22 to be added behind the input housing
bearing cup to obtain the specified axial float.
For example, from Table 15 the desired axial
float for the size 5307 intermediate shaft
assembly, Ref. #2A, is .001” to .003” (0.03 mm
to 0.08 mm). If the measured axial float is .039”
(0.99 mm) then addition of metal shims with
a total thickness between .036” to .038” (0.91
mm to 0.96 mm) behind the intermediate-speed
input housing bearing cup will produce the
desired axial float.
0
44
33
22
11
5
DIAL INDICATOR TIP MUST
REST ON QUILL SHAFT AND
NOT ON NUT SURFACE DIAL INDICATOR
WITH STAND
BUSHING NUT
THREADED ON
QUILL SHAFT
PRY BAR
Figure 24
TABLE 15 — Preload & Axial Float Settings
DRIVE
SIZE
Ref. # 4A1 & 4A2
Bearing Preload
Inches (mm)
Ref. #2A3
Assembly
Intermediate
Shaft
Axial Float
Inches (mm)
Ref. # 1A3 or 3A3
Assembly
High-speed Shaft
Axial Float
Inches (mm)
5107 0.001-0.004 (0.00-0.10) .001-.003 (0.03-0.08) .001-.003 (0.03-0.08)
5115 0.001-0.004 (0.00-0.10) .001-.003 (0.03-0.08) .001-.003 (0.03-0.08)
5203 0.001-0.004 (0.00-0.10) .001-.003 (0.03-0.08) .001-.003 (0.03-0.08)
5207 0.001-0.004 (0.00-0.10) .001-.003 (0.03-0.08) .001-.003 (0.03-0.08)
5215 0.001-0.004 (0.00-0.10) .001-.003 (0.03-0.08) .001-.003 (0.03-0.08)
5307 0.001-0.004 (0.00-0.10) .001-.003 (0.03-0.08) .001-.003 (0.03-0.08)
5315 0.001-0.004 (0.00-0.10) .001-.003 (0.03-0.08) .001-.003 (0.03-0.08)
TURN AND MOVE
BOLT TO CHECK
FLOAT
Figure 25