Master C150 Installation and operating manual

MASTER COMBOGEAR
RIGHT ANGLE C-FACE REDUCERS
®
SERVICE AND REPAIR
SIZES C150, C200, C262, C350
WARNING: Because of the possible danger to person(s) or property which may result from improper use of products, it is important that correct
procedures be followed. Products must be used in accordance with the Engineering information specified in the catalog. Proper installation, operation
and maintenance procedures must be observed. The instructions in the instruction manuals must be followed. Inspections should be made as
necessary to assure safe operation under prevailing conditions. Proper guards and other suitable safety devices or procedures as may be desirable or
as may be specified in safety codes should be provided, and are neither provided by Master Power Transmission nor are the responsibility of Master
Power Transmission. This unit and its associated equipment must be installed, adjusted and maintained by qualified personnel who are familiar with the
construction and operation of all the equipment in the system and the potential hazards involved. When risk to persons or property may be involved, a
failsafe device must be an integral part of the driven equipment beyond the speed reducer output shaft.
3300 Tenth St. / Columbus, IN 47201 / [phone]
www.master-pt.com
Master ComboGear Right Angle Reducer Instruction Manual 499430 10/2013
INSTRUCTION MANUAL 499430

TABLE OF CONTENTS
GENERAL INFORMATION ....................................................................................................................................3
PRODUCT DESCRIPTION ............................................................................................................
........................ 3
NOMENCLATURE..................................................................................................................................................3
APPLICATION INFORMATION..............................................................................................................................4
WARRANTY ...........................................................................................................................................................4
MOUNTING POSITIONS .......................................................................................................................................4
CHANGING OUTPUT SHAFT FROM K1 TO L1 (AND L1 TO K1).................................................................4
MOTOR INSTALLATION........................................................................................................................................5
COUPLING LOCATION..........................................................................................................................................5
INSTALLATION ......................................................................................................................................................6
TWIN TAPERED BUSHING INSTALLATION ........................................................................................................6
TWIN TAPERED BUSHING REMOVAL ................................................................................................................7
STRAIGHT BORE BUSHING INSTALLATION ......................................................................................................7
TORQUE ARM MOUNTING POSITIONS..............................................................................................................9
INPUT SEALING SYSTEM ....................................................................................................................................9
MAINTENANCE....................................................................................................................................................10
LUBRICATION – GENERAL .........................................................................................................................10
LUBRICATION – OIL FILL LEVELS..............................................................................................................10
LUBRICATION – VERTICAL OU TPUT SHAFT MOUNTING .......................................................................10
STANDARD INPUT SEAL REPLACEMENT.................................................................................................10
OUTPUT SEAL REPLACEMENT........................................................................................................
......... .11
BOLT TYPES AND TORQUES ......................................................................................................... .............12
LONG TERM STORAGE.............................................................................................................. ........................ 12
2

3
GENERAL INFORMATION
MASTER Power Transmission manufactures the
the product described in this instruction manual.
PRODUCT DESCRIPTION
The MASTER ComboGear reducer is a double
reduction worm-helical speed reducer that utilizes
a C-Face motor adapt
er and 3-piece flexible coupling.
This product is available in two basic configurations:
NOMENCLATURE
The part number indicates all the essential characteristics of the MASTER ComboGear.
MASTER ComboGear
MASTER ComboGear
1. Solid Output Shaft: a standard solid output shaft
extension that can be specified as left hand, right hand
or double shaft configurations. See Mounting Position
diagrams.
2. Hollow Output Shaft: uses a hollow through-bore
output shaft in either of two configurations: 1) straight
bore shaft with locking set screws, or 2) twin tapered
bushings. Twin tapered bushing kits are available
separately in a range of inch and metric bore sizes.

4
APPLICATION INFORMATION
The MASTER ComboGear reducer is designed to
operate within the following temperature limits:
Ambient –10 to +165 °F
Oil Sump –10 to +200 °F
Where ambient temperatures exceed 100°F, care
should be taken not to exceed 200°F sump
temperature during unit operation.
The continuous rated input horsepower shown on
the reducer nameplate is for service factor of 1.0 at
an input speed of 1750 RPM. Before placing the
reducer into service, check the nameplate to confirm
that its horsepower rating is consistent with the
motor horsepower and the desired service factor.
Application versus service factor information and
reducer ratings for different speeds can be found in
your MASTER Engineering catalogs.
WARNING
TO ENSURE THAT DRIVEN EQUIPMENT IS NOT
UNEXPECTEDLY STARTED, TURN OFF AND
LOCK OUT AND TAG POWER SOURCE BEFORE
WORKING NEAR THE EQUIPMENT. FAILURE TO
OBSERVE THESE PRECAUTIONS COULD
RESULT IN BODILY INJURY OR PROPERTY
DAMAGE.
WARRANTY
The MASTER ComboGear Reducer is war-
ranted under the MASTER “Standard Terms and
Conditions of Sale” to be free of defects in material
and workmanship. Warranty claims must be
submitted to the company within one (1) year from
the date of installation or three (3) years from the
date of manufacture, whichever comes first. The
warranty is valid providing the product is properly
applied, installed, operated and maintained in
accordance with our instruction manual. This
warranty covers product replacement or repair only
and excludes labor, equipment and/or downtime for
removal and installation. This warranty shall not
apply where equipment is operated above rated load
capacity or is subject to accident, alteration, misuse
or abuse. This warranty is in lieu of and excludes all
other expressed or implied warranties.
NOTE: Service and repair under warranty should be
performed only by a MASTER authorized service
shop. Contact MASTER Warranty Administration for
the nearest location.
MOUNTING POSITIONS
Reducers should always be ordered for the
expected mounting position as different oil fill
quantities are required and grease fittings are
required on the upper bearings of vertical shaft units.
See Lubrication section.
NOTE: The following mounting positions are generic
in that many other assemblies of feet and flanges
are available. The relationship of the input and
output shafts to earth (down) are significant.
CHANGING THE OUTPUT SHAFT
FROM K1 TO L1 (AND L1 TO K1)
Units should always be ordered to the required
mounting position. However, it is possible to change
output shaft location.
1. Drain oil from case. Remove the open bearing
housing. Remove the output seal and discard.
2. Lift out the output shaft assembly and the
intermediate shaft assembly.
3. Remove the closed bearing housing. Clean
machined surfaces.
4. Remove tapered roller bearing cups and shims from
each bore in each bearing housing and switch them .
(Place cups and shims removed from bores in open
bearing housing in closed bearing housing and vice
versa.)
5. Apply a 1/16” bead of Loctite 515 or equivalent
sealant to the closed bearing housing machined
sealing surfaces. The bead of sealant must go
completely around all bolt and dowel holes. Install the
closed bearing housing. Evenly tighten the housing
bolts. Lay the unit on the bench, closed bearing
housing down.

5
REDUCER
SIZE
MOTOR
FRAME
MOTOR
COUPLING
REDUCER
COUPLING
REDUCER
SIZE
MOTOR
FRAME
MOTOR
COUPLING
REDUCER
COUPLING
C150 56 .090 / (3/32) .00 (EVEN) C200 56 .090 / (3/32) .00 (EVEN)
C150 140 .030 / (1/32) .00 (EVEN) C200 140 .030 / (1/32) .00 (EVEN)
C150 180 N.A. N.A. C200 180 .171 / (11/64) .188 / (3/16)
C150 IEC71 .090 / (3/32) .00 (EVEN) C200 IEC71 .090 / (3/32) .00 (EVEN)
C150 IEC80 .156 / (5/32) .00 (EVEN) C200 IEC80 .156 / (5/32) .00 (EVEN)
C150 IEC90 .141 / (9/64) .00 (EVEN) C200 IEC90 .141 / (9/64) .00 (EVEN)
C262 56 .090 / (3/32) .00 (EVEN) C350 56 .070 / (5/64) .00 (EVEN)
C262 140 .030/ (1/32) .00 (EVEN) C350 140 .125 / (1/8) .00 (EVEN)
C262 180 .090 / (3/32) .00 (EVEN) C350 180 .156 / (5/32) .00 (EVEN)
C262 210 N.A. N.A. C350 210 .090 / (3/32) .00 (EVEN)
C262 IEC71 .141 / (9/64) .250 / (1/4) C350 IEC71 .141 / (9/64) .250 / (1/4)
C262 IEC80 .141 / (9/64) .250 / (1/4) C350 IEC80 .141 / (9/64) .250 / (1/4)
C262 IEC90 .109 / (7/64) .250 / (1/4) C350 IEC90 .109 / (7/64) .250 / (1/4)
C262 IEC100/112 .188 / (3/16) .015 /(1/64) C350 IEC100/112 .188 / (3/16) .015 /(1/64)
C262 IEC132 .047 / (3/64) .00 (EVEN) C350 IEC132 .047 / (3/64) .00 (EVEN)
N.A. (NOT APPLICABLE)
NOTE: IEC Motors are B5 flanges.
6. The position of the wormgear must be adjusted so
the worm contacts the center of the wormgear teeth.
Failure to make this adjustment may cause reduced
efficiency and life as well as overheating and tooth
breakage.
7. Apply Prussian Blue lightly but evenly to both sides
of five adjacent teeth on the bronze wormgear.
8. Install the intermediate shaft assembly into the
gearcase so that the intermediate shaft pinion will be
on the same side as the output gear when the reducer
is reassembled. Install the open bearing housing and
secure with two bolts at diagonal corners. The hollow
dowel pins must be in place.
9. Rotate the input shaft so the “blued” wormgear teeth
are rotated through the gear mesh. Then rotate in the
opposite direction. Marks of contact will be made by
the worm in the bluing on the wormgear teeth.
10. Remove the open bearing housing and
intermediate shaft assembly. Examine the contact
pattern on the wormgear teeth. The ideal pattern is
centered in the wormgear teeth.
11. If the pattern is not centered, the intermediate shaft
must be moved in the direction where the contact
shows the heaviest. Remove a thin shim from the
bearing cup on the side that the contact is heaviest and
install it under the cup on the opposite side. Shims may
be moved from one side to the other but the total
number of shims must not be changed, as this controls
the endplay of the bearings.
COUPLING LOCATION
The motor and reducer coupling halves must be
properly located before assembly to prevent bearing
and coupling failure. Refer to the following chart and
reference diagram for proper locations.
MOTOR INSTALLATION
The MASTER ComboGear uses a standard NEMA C-
face motor with a 3-piece flexible coupling. IEC motor
adapters and couplings are available.
12. Repeat the above steps, cleaning, rebluing and
inspecting each time, until the contact pattern is
centered on the wormgear.
13. Install the intermediate and output shaft
assemblies. Apply sealant to the gearcase machined
sealing surfaces. Install the open bearing housing and
tighten all bolts. Be sure all parts rotate freely.
14. Lubricate the shaft seal surface and seal bore
liberally with SHC 634. Install a new seal, taking care
not to cut or roll the lip or dislodge the seal garter
spring. Seat the seal flush with the outside of the
bearing housing. The use of a driver is recommended.
15. Fill unit with proper amount of lubricant. See
charts. Use sealant on plug threads. Test unit.

6
INSTALLATION
IMPORTANT!
While the basic MASTER ComboGear
reducer is suitable for any approved mounting
position, different oil levels are required for mounting
positions other than K1/L1/S1. You must add the
required amount of oil for the desired operating
position.
IMPORTANT: RIGID MOUNTING OF THE
REDUCER IS NOT RECOMMENDED.
System alignment problems indicate that rigid
mounting of a reducer in a rigid system may cause
“binding”, leading to premature bearing, shaft or
reducer failure. A system must have some flexible
element that allows it to self-align during operation.
The ideal mounting for a hollow shaft reducer is to
use a torque arm design. If a reducer uses a
flange/bracket mounting concept, it is highly
recommended that the reducer be mounted on the
conveyor head shaft using the conveyor pillow
block on the opposite side of the conveyor as a
support bearing. A system with a rigidly mounted
bearing close to a rigidly mounted reducer will
probably be impossible to align and maintain.
Units are shipped from the factory with the reducer half
of the input coupling installed.
1. Drive key into motor shaft. Slide the input coupling
half onto the motor shaft. Position the coupling half on
the motor shaft as shown in the preceding chart.
Tighten setscrews.
2. Insert the elastomer coupling element into the
reducer-side coupling half. Visually align the openings
in the coupling half with the ears on the motor side
coupling half. Slip the motor straight into the motor
adapter, insuring that the coupling engages properly.
Once the coupling engages, slide the motor tenon into
the motor adapter. Install and tighten four motor bolts.
WARNING: Keep fingers clear of mating flanges of
motor and reducer to prevent pinching injury.
3. Insure that there is no binding or excess clearance
between the coupling halves. The motor-side coupling
half may be loosened with a hex wrench inserted
through the adapter access hole; then use a
screwdriver to gently pry the motor coupling half
toward the reducer. The metal ears should not touch
the face of the opposite coupling hub and should have
no more than 1/32” clearance. Tighten setscrews
securely.
4. Install the plastic safety cap into the adapter access
hole.
TWIN TAPERED BUSHING INSTALLATION
WARNING: The output shaft bushings must be
shielded to prevent contact, which may result in injury.
Fabricate or contact MASTER for shields.
1. One bushing assembly is required to mount the
reducer onto the driven shaft. One assembly consists
of two tapered bushings, six bushing screws, bushing
keys and a shaft key.
2. The driven shaft must extend through the full length
of the reducer. The reducer should be mounted the
recommended minimum distance from the shaft
bearing (shown as dimension “A” in Fig. 2 and table.
Dimension “A” is required for bolt clearance/jackscrew
removal.)
3. Place one bushing on the shaft and position per
dimension “A”. If the reducer is positioned closer to the
bearing than “A”, place the screws (with lockwasher) in
the unthreaded holes in the bushing before positioning
the bushing on the shaft. Allow a minimum of 1/8”
between the screw heads and the bearing. Do not
grease the bushings.
4. Insert the output key in the shaft and bushing.
5. Place the reducer in position on the shaft aligning
the hub keyway with the shaft key.

7
Shaft
Design
Standard
Shaft and
Bushings
Nickel Plated
Shaft/non-stick
Bushings
------- -------
Reducer
Size
Wrench
Torque
Wrench
Torque
A*
(Min.)
L
(Min.)
C150 200 lb/in 75 lb/in 1.00 7.91
C200 200 lb/in 200 lb/in 1.25 8.81
C262 200 lb/in 200 lb/in 1.25 9.81
C350 200 lb/in 200 lb/in 1.50 12.00
STRAIGHT BORE BUSHING INSTALLATION
Mount the reducer on the driven shaft. If bushings are
used, assemble the bushings in reducer first. A set of
bushings for one reducer consists of one key-seated
(drive) bushing and one plain (solid) bushing. The user’s
driven shaft must extend through the full length of the
speed reducer. The location of the setscrews and key(s)
is shown in the chart and diagram below. Shaft collars are
used on the C150 & C262 only. The C200 & C350 do not
require shaft collars as there is sufficient thread engage-
ment for the setscrews in the hollowshaft.
NOTE: All keys are secured with setscrews.
NOTE: Two setscrews are used in each end. The third
hole in the hollow shaft is for user convenience in removing
the speed reducer from the driven shaft with use of a gear/
bearing puller. Also, it is sometimes more accessible than
trying to rotate the shaft to insert the required setscrews.
Place the output flange/brackets on the conveyor mount-
ing surface using customer supplied mounting hardware.
Tighten hardware sufficiently to hold output flange/bracket
in place, but realize that final alignment (stated below)
must be completed after all elements are installed.
Install the reducer on the shaft a sufficient distance from
the conveyor side plate to allow access to bushing set-
screws. Tighten all setscrews to 150 in lb torque.
Attach output/bracket flange and reducer together using
mounting hardware provided. Tighten hardware sufficiently
to hold reducer in place, but not tight. This will allow
reducer to find it’s own center of alignment by doing the
final alignment.
Final alignment should be accomplished by running the
conveyor/reducer (unloaded) and observing the reaction of
the output flange/bracket. If the output flange/bracket
appears to be in a bind, turn power off, stop unit, loosen
the output flange/bracket mounting hardware on the
reducer, and run the unit again to allow reducer to find it’s
TWIN TAPERED BUSHING REMOVAL
1. Remove bushing screws.
2. Clean and lubricate the bushing screws and the
threaded jackscrew holes in the tapered bushing
flange. Install bushing screws in those threaded holes.
Tighten the screws alternately and evenly until the
bushings are free from the shaft.
3. If the reducer is too close to the driven to install the
jacking screws, first loosen but do not remove the
outer bushing. Then loosen the inner bushing screws
as far as possible. Use two wedges spaced 180
degrees between the backup plate and the bushing
flange. Drive the wedges in alternately until the
bushing is free from the shaft.
6. Insert screws through the unthreaded holes in the
tapered bushing flange and align with the threaded
holes in the backup plate. Tighten the screws slightly.
7. Place the second tapered bushing in position on the
shaft and align the bushing with the shaft key. Align
unthreaded holes in the bushing with the threaded
holes in the backup plate. Insert bushing screws and
tighten slightly.
8. Alternately and evenly tighten the screws in the
bushing nearest to the driven equipment first. Torque
the screws evenly, a small amount at a time, to the
recommended torque wrench settings shown in the
table. Repeat with the outer bushing.
NOTE: The bushing bolts must not protrude through
the backup plate, as output seal damage may result. If,
while tightening the bushing bolts, it appears that the
bolts are starting to protrude through the backup plate,
remove the bolts and install the appropriate size flat
washer between the lockwasher and the tapered
bushing flange on each bolt.
own center of alignment. When it is evident the flange is
no longer in a bind, tighten output flange/bracket mounting
hardware to the recommended torque.
NOTE: Do not loosen hollowshaft setscrews when
making final adjustment.

8
CASE SIZE BORE
SIZE
DRIVEN
SIDE (FIG.)
OPPOSITE
DRIVEN (FIG.)
CASE
SIZE
BORE
SIZE
DRIVEN
SIDE (FIG.)
OPPOSITE
DRIVEN
(FIG.)
1 2 4 1 1/2 3 4
C150
C150
C150
1 1/16 2 4 1 5/8 2 4
1 1/8 2 4 C262
C262
C262
C262
1 11/16 2 4
MAX. BORE 1 3/16 1 1 1 3/4 2 4
1 7 8 MAX. BORE 1 15/16 1 1
1 1/16 7 8 1 5/16 7 8
1 1/8 7 8 1 3/8 7 8
C200
C200
C200
C200
C200
C200
1 3/16 6 8 1 7/16 7 8
1 1/4 6 8 1 1/2 7 8
1 5/16 6 8 C350
C350
C350
C350
C350
C350
C350
C350
C350
C350
1 5/8 7 8
MAX. BORE 1 7/16 5 5 1 11/16 7 8
1 3/16 3 4 1 3/4 7 8
1 1/4 3 4 1 7/8 6 8
C262
C262
C262
C262
C262
1 5/16 3 4 1 15/16 6 8
1 3/8 3 4 2 6 8
MAX. BORE 2 3/16 5 5
ONLY THE C150 AND C262 CASE SIZES REQUIRE A SHAFT COLLAR
USE THIS DIAGRAM FOR THE C150 AND C262 MASTER COMBOGEAR
1 7/16 3 4

9
TORQUE ARM MOUNTING POSITIONS
INPUT SEALING SYSTEM
USE THIS DIAGRAM FOR THE C200 AND C250 MASTER COMBOGEAR
Torque arm mounting is a common mounting for
hollow-shaft units. The reducer hollow output shaft is
slipped over and supported by the shaft extension of
the head pulley. Torque reaction is taken by a torque
arm (radius arm) and tie rod arrangement, preferably
in tension. Typically, brackets are bolted to the foot
holes of the gearcase to provide an attachment point
for the tie rod. The opposite end of the tie rod is
anchored (through a flexible joint) to the machine
frame or floor. Since shafts and attachments seldom
run true, the reducer may have eccentric movement.
The tie rod and anchor joints must have enough
freedom of movement to prevent metal fatigue in any
of the torque reaction components. The proper
orientation of the tie rod is at right angles (up to +/-20
degrees is normally acceptable) to a line between the
point of attachment of the torque arm to the reducer
and the output shaft. This is designated as the “radius
arm” in Figure 3. Tie rod kits are available from Master.
The MASTER ComboGear reducer (Fig. 4)
incorporates the RELIALUBE system and requires no
scheduled maintenance. Seals are normal wear items,
strongly effected by operating environment, and may
require periodic replacement.

10
The gearcase is not vented. The Relialube system
requires no relocation or installation of breather
vents for any approved mounting position, although
the oil fill quantity must be changed for mounting
positions other than the factory-standard K1/L1/S1
and grease fittings are required on output shaft up
and down versions. Reducers should be ordered for
the specific mounting position desired.
MAINTENANCE
The MASTER ComboGear reducer requires
little maintenance, but an occasional inspection to
check for hardware security, mounting integrity,
leakage and general overall condition is good
standard practice.
Seals are normal wear items and may require
periodic replacement.
LUBRICATION – GENERAL
The standard lubricant is Mobil SHC 634, which is
suitable for –10°F to +100°F ambient.
For low temperature operation, Mobil SHC 629 is
suitable for –30°F to +60°F ambient.
For those food processing installations requiring
USDA Class AA and H1 approvals, use Chevron
FM460X which is suitable for use from +15°F to
110°F.
Stock units are factory filled with Mobil SHC 634 for
the K1/L1/S1 mounting position unless specified at order.
LUBRICATION – OIL FILL LEVELS
To change from one mounting position to another,
you MUST correct the oil quantity so the total oil in
the gearcase is as listed below. Failure to follow
these instructions will void warrantee. Oil is added to
the prescribed level with the gearcase sitting in the
K1/L1/S1 position, before the reducer is mounted in
the desired position.
NOTE: Vertical output shaft (up or down)
conversions require a new upper bearing housing
equipped with grease fittings. Consult Renewal
Parts.
Dimension “A” is measured with a dipstick inserted
into the tapped fill hole from the machined top of the
gearcase to the oil level with the gearbox set level
on the ground.
Approximate oil volumes (fluid ounces) by case size
and assembly. Divide ounce quantities by 16 for
volumes in pints.
HOLLOW (TAPERED OR STRAIGHT BORE) OUTPUT SHAFT
Assm. S1 Dist. S2 S4 S5
H4 “A” H1 “A” H3 “A” H5 “A”
B2 (in.) B3 (in.) B1 (in.) B5 (in.)
Size
C150 24 oz. 2¾” 27 oz. 2¼" 27 oz. 2¼" 43 oz. 1½"
1
C200 40 oz. 3¾" 44 oz. 3¼" 44 oz. 3¼" 60 oz. 2 /8"
C262 64 oz. 5¾" 112 oz. 2¾" 112 oz. 2¾" 112 oz. 2¾"
C350 168 oz. 6" 235 oz. 4" 235 oz. 4" 256 oz. 3
3/ "
8
SOLID OUTPUT SHAFT
Assm. L1 L4 K4 L5
K1 Dist K2 L2 K5
B2 “A” B1 “A” B3 “A” B5 “A”
H4 (in.) H1 (in.) H3 (in.) H5 (in.)
Size
C150 27 oz. 2¾" 32 oz. 1¾" 52 oz. 3/4" 48 oz. 3/4"
C200 40 oz. 3¾" 44 oz. 3" 68 oz. 1½" 68 oz. 1½"
C262 83 oz. 5¼" 96 oz. 33/8” 128 oz. 1¾" 128 oz. 1¾"
C350 168 oz. 6" 235 oz. 4½" 312 oz. 1½" 256 oz. 4"
LUBRICATION – VERTICAL
OUTPUT SHAFT MOUNTINGS
Vertical output shaft assemblies such as
K2/L2/K4/L4/S2/ S4 require periodic lubrication of
the reducer bearings that are out of the oil splash.
These units are equipped with grease fittings on the
upper intermediate and output shaft bearings.
Lubrication frequency is 2 pumps from a hand
grease gun every 6 months or 2000 hours operation.
Do not overgrease. The recommended lubricant is
Shell Alvania #2.
NOTE: Units shipped from the factory for vertical
output shaft mounting positions have grease fittings
wired to plugs in the bearing housings. This prevents
oil leakage through the fittings. Plugs must be
replaced with grease fittings before use.
INPUT SEAL REPLACEMENT
The input seal on the all-position RELIALUBE
design is considered a normal wear item with a finite
life. If necessary, the input seal is easily replaced.
Refer to assembly drawings.
1. Stop and lock out the motor.
2. Remove four bolts attaching the motor to the motor
adapter. Remove the motor. The motor coupling half
will come off with the motor.
3. Remove four bolts attaching the motor adapter to
the reducer gearcase. Remove adapter. Do not
remove the reducer-side input coupling half yet.
Remove the large retaining ring from the bore of the
input of the reducer gearcase.
4. Use two prybars, spaced 180º, behind the input
coupling against the gearcase face and gently pry the
input shaft out of the gearcase. The input seal housing
will come out with it. It is not normally necessary to
completely remove the input shaft from the gearcase.

11
5. Remove the input coupling (2 set screws). Slide the
input seal carrier off of the input shaft.
6. Press the input seal out of the seal carrier. Clean the
seal carrier and press the new input seal into the
carrier with a driver slightly larger that the OD of the
seal itself. Press the seal flat, flush with the outside of
the seal carrier. The seal is oriented so that the garter
spring is toward the inside of the gearcase. Insure that
the O-ring around the OD of the seal carrier has not
been damaged; replace if required.
7. Clean the input bore of the gearcase and the seal
surface of the input worm shaft. Never use sandpaper
or other abrasive to clean the seal surface! Inspect for
worn bearings and damaged seal surface.
8. If the worm shaft was removed, carefully insert and
bottom the worm shaft into the gearcase. Lubricate the
O-ring on the OD of the seal carrier, as well as the lip of
the new seal and seal surface of the input worm shaft
with reducer lubricant.
9. Carefully slide the input seal carrier into the bore of
the gearcase, making sure that the lip of the input seal
slides over the seal surface. If the seal folds or shows
evidence of tiny slivers of black material, the seal may
be damaged and will not seal properly. Remove the
seal carrier and replace the seal. Do not nick the seal
lip on the shaft keyway.
10. Slide the seal carrier as far as possible into the
bore of the gearcase. Use a hollow tool to press evenly
on the seal carrier (not on the seal!) and drive the
carrier into the case. The carrier must bottom against
the input bearing.
11. Install the retaining ring in the groove in the
gearcase bearing bore. Reinstall the reducer side
coupling half and position it where it was originally.
12. Reinstall the motor adapter and motor.
13. Add oil to recommended level for assembly
position.
OUTPUT SEAL REPLACEMENT – ALL
Never remove a seal by driving a screwdriver between
the seal lip and the shaft seal surface. The condition of
the shaft seal surface is critical to satisfactory lubricant
sealing.
The best way to replace an output seal is to remove the
output bearing housing, remove the bearing cup and
shims (you MUST reinstall the shims), remove the
seal, reinstall the bearing and shims and remount the
bearing housing and press a new seal into place. Use a
hollow driver with an OD slightly larger than the OD of
the seal to press evenly on the metal seal housing, not
contacting the seal lip area. The seal should be seated
flush with the outer surface of the bearing housing with
a smooth driver that contacts the seal near the OD. Do
not scratch shaft seal surfaces or deform the seal on
installation.

12
Case
Size
Coupling
(Set Screws)
Torque
Grade 5
C150 1/4×20 87 in.lbs.
C200 1/4×20 8 7 i n . lb s .
C200 5/16×18 165 in.lbs.
C262 1/4×20 87 in.lbs.
C262 5/16×18 165 in.lbs.
C350 1/4×20 87 in.lbs.
C350 5/16×18 165 in.lbs.
4. If unit is to be stored out of doors or in a damp or
unheated indoor area, cover the entire exterior with rust
preventive, then seal the unit in a moisture proof
container or polyethylene bag with desiccant. Protect
the enclosure from direct sunlight.
5. Rotate the input shaft at least 60 turns monthly to
redistribute the lubricant.
Return to service from long term storage:
1. Remove all protective coatings. If unit has been
stored more than 3 years or in high temperatures,
replace all oil seals. Check hardware for proper
tightness.
2. Drain and refill the reducer with the proper amount
and type of lubricant.
3. If unit was equipped with a motor, check motor stator
insulation resistance with a megohmeter. Compare to
original reading. Resistance or less than 1 megohm or
50% of the original resistance requires the motor to be
removed and dried. If drying does not restore the
winding insulation resistance, the motor must be
repaired or rewound.
4. Motor drying: Refer to a motor repair shop.
5. When stored motors are found to be wet, motor
should be disassembled and inspected. Remove
endshields, inspect bearings and grease for moisture
and rust. Replace/rebuild as necessary.
BOLT TYPES AND TORQUES
ComboGear uses all metric hardware except:
1) C-face adapter bolts (threaded into the gearcase),
2) motor bolts
3) coupling set screws
BOLT AND SET SCREW TORQUE
Case Input Torque Bearing Torque
Size Adaptor Grade 5 Housing Grade 8.8
C150 5/16x18 156 in.lbs. M8x1.25 230 in.lbs.
C200 5/16x18 156 in.lbs. M8x1.25 230 in.lbs.
C262 3/8x16 276 in.lbs. M8x1.25 230 in.lbs.
C350 3/8x16 276 in.lbs. M10x1.5 460 in.lbs.
Case
Size
Bolt-on
Foot
Torque
Grade 8.8
C150 M8×1.25 230 in.lbs.
C200 M10×1.5 460 in.lbs.
C262 M10×1.5 460 in.lbs.
C350 M12×1.75 800 in.lbs.
Case
Size
Hollow Shaft
Straight Bore
(Set Screws)
Torque
Grade
45H
C150 M8 150 in.lbs.
C 2 00 M8 150 in . l b .
C262 M8 150 in.lbs.
C350 M8 150 in.lbs.
LONG TERM STORAGE
During periods of long term storage (6 months or
longer) special procedures must be followed to
protect the reducer and insure that it will be in good
condition when put into service.
1. Replace lubricant in the reducer with Mobil
SHC634 blended with 2% by volume of Daubert
Chemical Nox-Rust VCI-105. Fill gearcase 90%
full. Rotate the input shaft at least 60 revolutions to
distribute the lubricant.
2. Apply a thick coating of chassis-type grease,
Cosmoline, Daubert Nox-Rust X-110 or equivalent
coating to all unpainted surfaces including
threads, bores, shafts and keyways.
3. If unit is equipped with a motor, measure stator
insulation resistance with a megohmeter and
record reading.

13
Renewal Parts
Solid Output Shaft MASTER ComboGear
SIZES C150B – C350B

14
Renewal Parts – MASTER ComboGear
SOLID SHAFT – SIZES C150B - C350B
ITEM DESCRIPTION QTY. C150B C200B C262B C350B
1 CPLNG. HUB (56C MTR.) 0-1 278900 278900 278900 278900
CPLNG. HUB (140TC MTR.) 0-1 278901 278901 278901 278901
CPLNG. HUB (180TC) 0-1 ------ 60222209W 278907 278907
CPLNG. HUB (210TC) 0-1 ------ ------ ------ 60222209B
CPLNG. ELEMENT 56/140 0-1 278911 278911 278911 278911
CPLNG. ELEMENT 180TC 0-1 ------ 60222220A 60222211A 60222211A
2 KEY, INPUT SHAFT 1 276138 276138 276140 276140
3 CPLNG. HUB, REDUCER 56/140 0-1 278900 276143 278901 278901
CPLNG. HUB, REDUCER 180 0-1 ------ 276145 275806 275806
CPLNG. HUB, REDUCER 210 0-1 ------ ------ ------ 60222209C
4 HEX HEAD SCREW 4 53202 53202 51929 51929
5 LOCKWASHER 4 50253 50253 50250 50250
6 CIRCLIP 1 278702 278702 278716 278146
*7 OIL SEAL ASSM. 0-1 41162024A 41162024B 41162024C 41162024D
8 CIRCLIP 1 278710 278712 278715 278718
*9 BEARING, OPEN (1) 1 07914703E 07914703G 07914703N 07914703AA
12 WORM SHAFT 1 SEE GEAR CHART
*13 BEARING 1 278883 07914702D 07914702K 07914702X
14 PIPE PLUG 1-3 41164738B 41164738B 41164738B 41164738B
15 P I PE P L U G 3-4 4 1164738A 41164738A 41164738A 41164738A
19 WARNING PLATE 1 60241524C 60241524C 60241524C 60241524C
20 NAMEPLATE 1 60200503C 60200503C 60200503C 60200503C
21 DRIVE SCREW 2 41163603B 41163603B 41163603B 41163603B
22 DOWEL PIN 4 41171506A 41171506A 41171506A 41171506B
23 INT. PINION SHAFT 1 SEE GEAR CHART
24 WORM GEAR 1 SEE GEAR CHART
25 KEY 1 41168812V 41168812K 55610 50999
26 SPACER 1 41162210AA 41162210AB 41162210AE 41162210AD
*27 GREASE RETAINER 2 41162401A 41162401D 41162401B 41162401W
*28/29 BEARING ASSEMBLY 2 41162601D 41162601E 41162601B 41162601AC
30 SHIM 1 41164250Y 41164250Z 41164250AA 41164250AB
31 ZERK FITTING 0-2 07901913AW 07901938AW 07901913AW 07901938AW
32 PLUG, THROW-AWAY 0-2 41164906D 41164906D 41164906D 41164906D
33 HEX HEAD SCREW (3) 12 60245207H 60245207H 60245207H 60245207K
34 LOCKWASHER (3) 12 50253 50253 50253 304603
35 KEY 1 55592 55025 55060 41168812D
36 OUTPUT SHAFT 1 60242112A 60242113A 60242114A 60242115A
*37 SEAL, OUTPUT 1 41162701FR 41162701FX 41162701FS 41162701FT
38 SHIM 1 41164250AC 41164250AD 41164250AE 41164250AF
*39/40 BEARING ASSEMBLY 2 41162601C 41162601A 41162601R 41162601AB
41 GREASE RETAINER 2 41162401C 41162401E 41162401R 41162401X
42 BEARING HSG., OPEN (2) 1 07920624A 07920618B 08692302A 08692308A
43 “C” FACE ADPT. 56/140 0-1 278574 278574 278476 278476
“C” FACE ADPT. 180 (4) 0-1 ------ 07906722AB 278478 278478
“C” FACE ADPT. 210 (5) 0-1 ------ ------ ------ 07906722AD
44 GEARCASE 1 08692202B 08693204B 08693206B 08693208B
45 BEARING HSG., CLOSED 1 07920628A 07920622B 08692306A 08693312A
46 BOLT ON FOOT 0-1 07914022A 07914020A 07914024A 07914026A
47 HEX HEAD SCREW 0-4 60245207A 60245207J 60245207J 60245207L
48 LOCKWASHER 0-4 50253 50684 304603 50469
49 HELICAL GEAR 1 SEE GEAR CHART
50 GEAR KEY 1 41168812E 55087 55154 141168812AE
* RECOMMENDED SPARE PARTS FO R MINIMUM PROTECTION
(1) FOR A-5 MOUNTING ONLY USE SEALED BEARING 07914703F FORC 150, USE 07914703DD FOR C200, USE 07914703R FOR C262, USE
07914703BV FOR C350.
(2) BOLT ON PLATE ADAPTER. MUST USE 56/140 C-FACE ADAPTER FOR COMPLETE ASSEMBLY.
(3) BOLT ON PLATE ADAPTER, MUST USE 180 C-FACE ADAPTER FOR COMPLETE ASSEMBLY.
(4) SIZE C350 USE QTY. 16.
(5) FOR VERTICAL OUTPUT SHAFT MOUNTING REPLACE ONE STANDA RD HOUSING WITH: 07920626B FOR C150, 07920620C FOR C200, 08692304B
FOR C262, 08693310B FOR C350.

15
Renewal Parts
Straight Bore MASTER ComboGear
SIZES C150S – C350S

16
Renewal Parts – MASTER ComboGear
STRAIGHT BORE – SIZES C150S - C350S
ITEM DESCRIPTION QTY. C150S C200S C262S C350S
1 CPLNG. HUB (56C MTR.) 0-1 278900 278900 278900 278900
CPLNG. HUB (140TC MTR.) 0-1 278901 278901 278901 278901
CPLNG. HUB (180TC MOTOR 0-1 ------ 60222209W 278907 278907
CPLNG. HUB (210TC) 0-1 ------ ------ ------ 60222209B
CPLNG. ELEMENT 56/140 0-1 278911 278911 278911 278911
CPLNG. ELEMENT 180/210TC 0-1 60222220A 60222211A 60222211A
2 KEY, INPUT SHAFT 1 276138 276138 276140 276140
3 CPLNG. HUB, REDUCER W/ 56/140 0-1 278900 276143 278901 278901
CPLNG. HUB, REDUCER W/ 180TC 0-1 ------ 276145 275806 275806
CPLNG. HUB, REDUCER W/ 210TC 0-1 ------ ------ ------ 60222209C
4 HEX HEAD SCREW 4 53202 53202 51929 51929
5 LOCKWASHER 4 50253 50253 50250 50250
6 CIRCLIP 1 278702 278702 278716 276146
*7 OIL SEAL ASSM. 1 41162024A 41162024B 41162024C 41162024D
8 CIRCLIP 1 278710 278712 278715 278718
*9 BEARING, OPEN (1) 1 07914703E 07914703G 07914703N 07914703AA
12 WORM SHAFT 1 SEE GEAR CHART
*13 BEARING 1 278883 07914702D 07914702K 07914702X
14 PIPE PLUG 1-3 41164738B 41164738B 41164738B 41164738B
15 P I P E P LUG 3-4 4 1164738A 41164738A 41164738A 41164738A
19 WARNING PLATE 1 60241524C 60241524C 60241524C 60241524C
20 N AMEPLATE 1 60200503C 60200503C 60200503C 60200503C
21 NAMEPLATE PINS 2 41163603B 41163603B 41163603B 41163603B
22 DOWEL PIN 4 41171506A 41171506A 41171506A 41171506B
23 INT. PINION SHAFT 1 SEE GEAR CHART
24 WORM GEAR 1 SEE GEAR CHART
25 KEY 1 41168812V 41168812K 55610 50999
26 SPACER 1 41162210AA 41162210AB 41162210AE 41162210AD
27 GREASE RETAINER 2 41162401A 41162401D 41162401B 41162401W
*28/29 BEARING ASSEMBLY 2 41162601D 41162601E 41162601B 41162601AC
30 SHIM 1 41164250Y 41164250Z 41164250AA 41164250AB
31 ZERK FITTING 0-2 07901913AW 07901938AW 07901938AW 07901938AW
32 PLUG, THROW-AWAY 0-2 41164906D 41164906D 41164906D 41164906D
33 HEX HEAD SCREW (4) 12 60245207H 60245207H 60245207H 60245207K
34 LOCKWASHER (4) 12 50253 50253 50253 304603
35 KEY 1 41168812AA 41168812AB 41168812AC 41168812AD
36 OUTPUT SHAFT 1 07920702B 07920703B 07920704B 07920705B
*37 OUTPUT SEAL 2 41162701FS 41162701FT 41162701GD 41162701FW
38 SHIM 1 41164250AG 41164250AH 41164250AF 41164250AK
*39/40 BEARING ASSEMBLY 2 41162601GP 41162601BR 41162601GR 41162601GS
41 GREASE RETAINER 1-2 41162401AB 41162401M 41162401AC 41162401AD
GREASE RETAINER (6.2 & 7.5 RATIO) 0-1 41162336A 41162401AG 41162336B 41162336C
42 BEARING HOUSING, OPEN 2 07920626A 07920620B 08692304A 08693310A
43 RETAINING RING 2 41163708A 150182 41163702BH 41163708D
44 C-FACE ADAPTOR (56/140) 0-1 278574 278574 278476 278476
C-FACE ADAPTOR (180) (2) 0-1 ------ 07906722AB 278478 278478
ADAPTOR PLATE (210TC) (3) 0-1 ------ ------ ------ 07906722AD
45 GEARCASE 1 08693202B 08693204B 08693206B 08693208B
46 STRAIGHT BORE BUSHING 2 SEE GEAR CATALOG
47 TORQUE ARM BRKT. ASSM. 0-1 60232807J 60232807C 60232807L 60232807R
47 BRKT. HARDWARE ASSM. 0-1 60232807H 60232807S 60232807M 60232807P
48 HELICAL GEAR 1 SEE GEAR CHART
50 BUSHING KEY 1 55025 60232101L 242296 243250
51 SET SCREW (OVER KEY) 1 278935 278899 278937 278899
52 SET SCREW (OVER SHAFT) 3 278936 278899 278938 278936
SHAFT COLLAR (NOT SHOWN) 2 41162235A ------ 41162235B ------
* RECOMMENDED SPARE PARTS FOR MINIMUM PROTECTION
(1) FOR A-5 MOUNTING ONLY USE SEALED BEARING 07914703F FOR C150, USE 07914703DD FOR C200, USE 07914703R FOR C262, USE 07914703B V FOR C350.
(2) BOLT ON PLATE ADAPTER FOR C200. MUST USE 56/140 C-FACE ADAPTER FOR COMPLETE ASSEMBLY.
(3) BOLT ON PLATE ADAPTER. MUST USE 180 C-FACE ADAPTER FOR COMPLETE ASSEMBLY.
(4) SIZE C350 USE QTY. 16.
(5) FOR VERTICAL OUTPUT SHAFT MOUNTING, REPLACE ONE STANDARD HOUSING WITH: 07920626B FOR C150, 07920620C FOR C200, 08692304B FOR C262, 08693310B
FOR C350.

17
Renewal Parts
Twin Tapered Bore MASTER ComboGear
SIZES C150T – C350T

18
Renewal Parts – MASTER ComboGear
TWIN TAPER BORE – SIZES C150T - C350T
ITEM DESCRIPTION QTY. C150T C200T C262T C350T
1 CPLNG. HUB (56C MTR.) 0-1 278900 278900 278900 278900
CPLNG. HUB (140TC MTR.) 0-1 278901 278901 278901 278901
CPLNG. HUB (180TC MOTOR 0-1 ------ 60222209W 278907 278907
CPLNG. HUB (210TC) 0-1 ------ ------ ------ 60222209B
CPLNG. ELEMENT 56/140 0-1 278911 278911 278911 278911
CPLNG. ELEMENT 180/210TC 0-1 60222220A 60222211A 60222211A
2 KEY, INPUT SHAFT 1 276138 276138 276140 276140
3 CPLNG. HUB, REDUCER W/ 56/140 0-1 278900 276143 278901 278901
CPLNG. HUB, REDUCER W/ 180TC 0-1 ------ 276145 275806 275806
CPLNG. HUB, REDUCER W/ 210TC 0-1 ------ ------ ------ 60222209C
4 HEX HEAD SCREW 4 53202 53202 51929 51929
5 LOCKWASHER 4 50253 50253 50250 50250
6 CIRCLIP 1 278702 278702 278716 278146
*7 OIL SEAL ASSM. 1 41162024A 41162024B 41162024C 41162024D
8 CIRCLIP 1 278710 278712 278715 278718
*9 BEARING, OPEN (1) 1 07914703E 07914703G 07914703N 07914703AA
12 WORM SHAFT 1 SEE GEAR CHART
*13 BEARING 1 278883 07914702D 07914702K 07914702X
14 PIPE PLUG 1-3 41164738B 41164738B 41164738B 41164738B
15 P IPE P L U G 3-4 4 1164738A 41164738A 41164738A 41164738A
19 WARNING PLATE 1 60241524C 60241524C 60241524C 60241524C
20 NAMEPLATE 1 60200503C 60200503C 60200503C 60200503C
21 NAMEPLATE PINS 2 41163603B 41163603B 41163603B 41163603B
22 DOWEL PIN 4 41171506A 41171506A 41171506A 41171506B
23 INT. PINION SHAFT 1 SEE GEAR CHART
24 WORM GEAR 1 SEE GEAR CHART
25 KEY 1 41168812V 41168812K 55610 50999
26 SPACER 1 41162210AA 41162210AB 41162210AE 41162210AD
27 GREASE RETAINER 2 41162401A 41162401D 41162401B 41162401W
*28/29 BEARING ASSEMBLY 2 41162601D 41162601E 41162601B 41162601AC
30 SHIM 1 41164250Y 41164250Z 41164250AA 41164250AB
31 ZERK FITTING 0-2 07901913AW 07901938AW 07901938AW 07901938AW
32 PLUG, THROW-AWAY 0-2 41164906D 41164906D 41164906D 41164906D
33 HEX HEAD SCREW (4) 12 60245207H 60245207H 60245207H 60245207K
34 LOCKWASHER (4) 12 50253 50253 50253 304603
35 KEY 1 41168812AA 41168812AB 41168812AC 41168812AD
36 OUTPUT SHAFT 1 07920702C 07920703C 07920704C 07920705C
*37 OUTPUT SEAL 2 41162701FS 41162701 FT 41162701GD 41162701FW
38 SHIM 1 41164250AG 41164250AH 41164250AF 41164250AK
*39/40 BEARING ASSEMBLY 2 41162601GP 41162601BR 41162601GR 41162601GS
41 GREASE RETAINER 1-2 41162401AB 41162401M 41162401AC 41162401AD
GREASE RETAINER (6.2 & 7.5 RATIO) 0-1 41162336A 41162401AG 41162336B 41162336C
42 BEARING HOUSING, OPEN 2 07920626A 07920620B 08692304A 08693310A
43 RETAINING RING 2 41163708A 150182 41163702BH 41163708D
44 C-FACE ADAPTOR (56/140) 0-1 278574 278574 278476 278476
C-FACE ADAPTOR (180) (2) 0-1 ------ 07906722AB 278478 278478
ADAPTOR PLATE (210TC) (3) 0-1 ------ ------ ------ 07906722AD
45 GEARCASE 1 08693202B 08693204B 08693206B 08693208B
46 BACKING PLATE 2 41162518A 241384242392 243115
47 SPIRAL LOCKRING 2 41163706F 421111 421112 41163706E
48 TWIN TAPER BUSHING KIT 1 SEE GEAR CATALOG
49 TORQUE ARM BRKT. ASSM. 0-1 60232807J 60232807C 60232807L 60232807R
BRKT. HARDWARE ASSM. 0-1 60232807H 60232807S 60232807M 60232807P
50 HELICAL GEAR 1 SEE GEAR CHART
* RECOMMENDED SPARE PARTS FO R MINIMUM PROTECTION
(1) FOR A-5 MOUNTING ONLY USE SEALED BEARING 07914703F FORC 150, USE 07914703DD FOR C200, USE 07914703R FOR C262, USE
07914703BV FOR C350.
(2) BOLT ON PLATE ADAPTER FOR C200. MUST USE 56/140 C-FACE ADAPTER FOR COMPLETE ASSEMBLY.
(3) BOLT ON PLATE ADAPTER. MUST USE 180 C-FACE ADAPTER FOR COMPLETE ASSEMBLY.
(4) SIZE C350 USE QTY. 16.
(5) FOR VERTICAL OUTPUT SHAFT MOUNTING, REPLACE ONE STANDARD H OUSING WITH: 07920626B FOR C150, 07920620C FOR C200, 08692304B
FOR C262, 08693310B FOR C350.

19
Gear Chart – MASTER ComboGear
SOLID OUTPUT SHAFT
SIZE C150B
RATIO
WORM
SHAFT
WORM
GEAR
HELICAL
PINION
HELICAL
GEAR
7.5 5 X 1.50 276068 60241102 07915819B 07915613B
9.4 5 X 1 . 8 4 2 7 6 0 6 8 6 0 241102 0 7 915819 0 7 915613C
10 5 X 2.25 276068 60241102 07915819D 07915613D
15 5 X 2 . 7 6 27606 8 6 0 2 41102 0791581 9 D 0 7 915613E
18 5 X 3.37 276068 60241102 07915819F 07915613F
20 5 X 4.13 276068 60241102 07915819G 07915613G
25 5 X 5.06 276068 60241102 07915819H 07915613H
30 7.5 X 4.13 276069 60240821 07915819G 07915613G
33.3 10 X 3.37 276070 60241163 07915819F 07915613F
38 7.5 X 5.06 276069 60240821 07915819H 07915613H
40 10 X 4.13 276070 60241163 07915819G 07915613G
50 10 X 5.06 276070 60241163 07915819H 07915613H
60 15 X 4.13 276072 60240828 07915819G 07915613G
75 15 X 5.06 276072 60240828 07915819H 07915613H
80 20 X 4.13 276074 60241164 07915819G 07915613G
90 18 X 5.06 276073 60241171 07915819H 07915613H
100 20 X 5.06 276074 60241164 07915819H 07915613H
125 30 X 4.13 276076 60241165 07915819G 07915613G
150 30 X 5.06 276076 60241165 07915819H 07915613H
160 40 X 4.13 276077 60241166 07915819G 07915613G
200 40 X 5.06 276077 60241166 07915819H 07915613H
240 60 X 4.13 276079 60241168 07915819G 07915613G
300 60 X 5.06 276079 60241168 07915819H 07915613H
SIZE C200B
RATIO
WORM
SHAFT
WORM
GEAR
HELICAL
PINION
HELICAL
GEAR
9.42 5 X 1.84 276090 60241202 07915820C 07915614C
10 5 X 2.25 276090 60241202 07915820D 07915614D
15 5 X 2.76 2 7 6090 6 0 2 41202 0 7 915820E 0 7 915614E
16.96 7.5 X 2.25 276091 60241204 07915820D 07915614D
18 5 X 3.37 276090 60241202 07915820F 07915614F
18.85 10 X 1.84 276092 60241205 07915820C 07915614C
20 5 X 4.13 276090 60241202 07915820G 07915614G
25 5 X 5.06 276090 60241202 07915820H 07915614H
30 7.5 X 4.13 276091 60241204 07915820G 07915614G
38 7.5 X 5.06 276091 60241204 07915820H 07915614H
40 10 X 4.13 276092 60241205 07915820G 07915614G
50 10 X 5.06 276092 60241205 07915820H 07915614H
60 15 X 4.13 276094 60241207 07915820G 07915614G
75 15 X 5.06 276094 60241207 07915820H 07915614H
80 20 X 4.13 276096 60241209 07915820G 07915614G
90 18 X 5.06 276095 60241208 07915820H 07915614H
100 20 X 5.06 276096 60241209 07915820H 07915614H
125 25 X 5.06 276097 60241210 07915820H 07915614H
150 30 X 5.06 276098 60241211 07915820H 07915614H
160 40 X 4.13 276099 60241213 07915820G 07915614G
200 40 X 5.06 276099 60241213 07915820H 07915614H
240 60 X 4.13 276101 60241215 07915820G 07915614G
300 60 X 5.06 276101 60241215 07915820H 07915614H
SIZE C262B
RATIO
WORM
SHAFT
WORM
GEAR
HELICAL
PINION
HELICAL
GEAR
7.5 (1) 5 X 1.50 276102 60241302 07915821B 07915615B
9.4 5 X 1.84 276102 60241302 07915821M 07915615C
10 5 X 2.25 276102 60241302 07915821N 07915615D
14.1 7.5 X 1.84 276103 60241304 07915821M 07915615C
15 5 X 2.76 276102 60241302 07915821P 07915615E
17.04 7.5 X 2.25 276103 60241304 07915821N 07915615D
18 5 X 3.37 276102 60241302 07915821R 07915615F
20 5 X 4.13 2 7 6 1 0 2 6 0 241302 0 7915821S 0 7915615G
22.73 10 X 2.25 276104 60241305 07915821N 07915615D
25 5 X 5.06 276102 60241302 07915821T 07915615H
27.92 10 X 2.76 276104 60241305 07915821P 07915615E
30 7.5 X 4.13 276103 60241304 07915821S 07915615G
33.3 10 X 3.37 276104 60241305 07915821R 07915615F
38 7.5 X 5.06 276103 60241304 07915821T 07915615H
40 10 X 4.13 276104 60241305 07915821S 07915615G
50 10 X 5.06 276104 60241305 07915821T 07915615H
60 15 X 4.13 276106 60241307 07915821S 07915615G
75 15 X 5.06 276106 60241307 07915821T 07915615H
80 25 X 3.37 276109 60203712 07915821R 07915615F
90 40 X 2.25 276111 60241313 07915821N 07915615D
100 30 X 3.37 276110 60241311 07915821R 07915615F
125 30 X 4.13 276110 60241311 07915821S 07915615G
150 30 X 5.06 376110 60241311 07915821T 07915615H
160 40 X 4.13 276111 60241313 07915821S 07915615G
200 40 X 5.06 276111 60241313 07915821T 07915615H
240 60 X 4.13 276113 60241315 07915821S 07915615G
300 60 X 5.06 276113 60241315 07915821T 07915615H
(1) SHELL PINION RATIO. ALSO ORDER PINION SHAFT
07915821U AND KEY 50994.
SIZE C350B
RATIO
WORM
SHAFT
WORM
GEAR
HELICAL
PINION
HELICAL
GEAR
6.2 (1) 5 X 1.22 276114 60207767 07915822A 07915616A
7.5 (1) 5 X 1.50 276114 60207767 07915822B 07915616B
9.4 5 X 1.84 276114 60207767 07915822C 07915616C
10 5 X 2.25 276114 60207767 07915822D 07915616D
15 5 X 2 . 7 6 2 7 61 1 4 60207767 0 7 915822E 0 7 915616E
18 5 X 3.37 276114 60207767 07915822F 07915616F
2 0 5 X 4 . 1 3 2 7 6 1 14 6 0 2 07767 0 7 915822G 07915616G
22.61 10 X 2.25 276116 60242403 07915822D 07915616D
25 5 X 5.06 276114 60207767 07915822H 07915616H
30 7.5 X 4.13 276115 60207763 07915822G 07915616G
33.3 10 X 3.37 276116 60242403 07915822F 07915616F
38 7.5 X 5.06 276115 60207763 07915822H 07915616H
40 10 X 4.13 276115 60242403 07915822G 07915616G
47.12 25 X 1.84 276121 275593 07915822C 07915616C
50 10 X 5.06 276116 60242403 07915822H 07915616H
60 15 X 4.13 276118 60242404 07915822G 07915616G
64.19 12.67 X 5.06 276117 60207708 07915822H 07915616H
75 15 X 5.06 276118 60242404 07915822H 07915616H
80 29 X 4.13 276120 60242405 07915822G 07915616G
86 25 X 3.37 276121 275593 07915822F 07915616F
100 20 X 5.06 276120 60242405 07915822H 07915616H
125 25 X 5.06 276121 275593 07915822H 07915616H
150 30 X 5.06 276122 275594 07915822G 07915616H
160 40 X 4.13 276123 60242407 07915822G 07915616G
200 40 X 5.06 276123 60242407 07915822H 07915616H
240 60 X 4.13 276125 275595 07915822G 07915616G
300 60 X 5.06 276125 275595 07915822H 07915616H
(1) SHELL PINION RATIO. ALSO ORDER PINION SHAFT
07915821J AND KEY 55089.

20
Gear Chart – MASTER ComboGear
STRAIGHT & TAPER BORE OUTPUT
SIZE C150S & T
RATIO
WORM
SHAFT
WORM
GEAR
HELICAL
PINION
HELICAL
GEAR
7.5 5 X 1.50 276068 60241102 07915819B 07915613K
9.4 5 X 1 . 8 4 2 7 6068 6 0 241102 0 7 915819C 0 7 915613L
10 5 X 2.25 276068 60241102 07915819D 07915613M
15 5 X 2 . 7 6 2 7 6068 6 0 2 41102 0 7 915819E 0 7 915613N
18 5 X 3.37 276068 60241102 07915819F 07915613P
20 5 X 4.13 276068 60241102 07915819G 07915613R
25 5 X 5 . 0 6 2 7 6068 6 0 2 41102 0 7 9 15819H 0 7 915613S
30 7.5 X 4.13 276069 60240821 07915819G 07915613R
33.3 10 X 3.37 276070 60241163 07915819F 07915613P
38 7.5 X 5.06 276069 60240821 07915819H 07915613S
40 10 X 4.13 276070 60241163 07915819G 07915613R
50 10 X 5.06 276070 60241163 07915819H 07915613S
60 15 X 4.13 276072 60240828 07915819G 07915613R
75 15 X 5.06 276072 60240828 07915819H 07915613S
80 20 X 4.13 276074 60241164 07915819G 07915613R
90 18 X 5.06 276073 60241171 07915819H 07915613S
100 20 X 5.06 276074 60241164 07915819H 07915613S
125 30 X 4.13 276076 60241165 07915819G 07915613R
150 30 X 5.06 276076 60241165 07915819H 07915613S
160 40 X 4.13 276077 60241166 07915819G 07915613R
200 40 X 5.06 276077 60241166 07915819H 07915613S
240 60 X 4.13 276079 60241168 07915819G 07915613R
300 60 X 5.06 276079 60241168 07915819H 07915613S
SIZE C200S & T
RATIO
WORM
SHAFT
WORM
GEAR
HELICAL
PINION
HELICAL
GEAR
9.42 5 X 1.84 276090 60241202 07915820C 07915614L
10 5 X 2.25 276090 60241202 07915820D 07915614M
15 5 X 2 . 7 6 2 7 6090 6 0 2 41202 0 7 915820E 0 7 915614N
16.96 7.5 X 2.25 276091 60241204 07915820D 07915614M
18 5 X 3.37 276090 60241202 07915820F 07915614P
18.85 10 X 1.84 276092 60241205 07915820C 07915614L
20 5 X 4.13 276090 60241202 07915820G 07915614R
25 5 X 5 . 0 6 2 7 6090 6 0 2 41202 0 7 9 15820H 0 7 915614S
30 7.5 X 4.13 276091 60241204 07915820G 07915614R
38 7.5 X 5.06 276091 60241204 07915820H 07915614S
40 10 X 4.13 276092 60241205 07915820G 07915614R
50 10 X 5.06 276092 60241205 07915820H 07915614S
60 15 X 4.13 276094 60241207 07915820G 07915614R
75 15 X 5.06 276094 60241207 07915820H 07915614S
80 20 X 4.13 276096 60241209 07915820G 07915614R
90 18 X 5.06 276095 60241208 07915820H 07915614S
100 20 X 5.06 276096 60241209 07915820H 07915614S
125 25 X 5.06 276097 60241210 07915820H 07915614S
150 30 X 5.06 276098 60241211 07915820H 07915614S
160 40 X 4.13 276099 60241213 07915820G 07915614R
200 40 X 5.06 276099 60241213 07915820H 07915614S
240 60 X 4.13 276101 60241215 07915820G 07915614R
300 60 X 5.06 276101 60241215 07915820H 07915614S
SIZE C262S & T
RATIO
WORM
SHAFT
WORM
GEAR
HELICAL
PINION
HELICAL
GEAR
7.5 (1) 5 X 1.50 276102 60241302 07915821B 07915615K
9.4 5 X 1.84 276102 60241302 07915821M 07915615L
10 5 X 2.25 276102 60241302 07915821N 07915615M
14.1 7.5 X 1.84 276103 60241304 07915821M 07915615L
15 5 X 2.76 276102 60241302 07915821P 07915615N
17.04 7.5 X 2.25 276103 60241304 07915821N 07915615M
18 5 X 3.37 276102 60241302 07915821R 07915615P
20 5 X 4.13 276102 60241302 07915821S 07915615R
22.73 10 X 2.25 276104 60241305 07915821N 07915615M
25 5 X 5.06 276102 60241302 07915821T 07915615S
27.92 10 X 2.76 276104 60241305 07915821P 07915615N
30 7.5 X 4.13 276103 60241304 07915821S 07915615R
33.3 10 X 3.37 276104 60241305 07915821R 07915615P
38 7.5 X 5.06 276103 60241304 07915821T 07915615S
40 10 X 4.13 276104 60241305 07915821S 07915615R
42.23 15 X 2.76 276106 60241307 07915821P 07915615N
50 10 X 5.06 276104 60241305 07915821T 07915615S
60 15 X 4.13 276106 60241307 07915821S 07915615R
75 15 X 5.06 276106 60241307 07915821T 07915615S
80 25 X 3.37 276109 60203712 07915821R 07915615N
90 40 X 2.25 276111 60241313 07915821N 07915615M
100 30 X 3.37 276110 60241311 07915821R 07915615P
125 30 X 4.13 276110 60241311 07915821S 07915615R
150 30 X 5.06 376110 60241311 07915821T 07915615S
160 40 X 4.13 276111 60241313 07915821S 07915615R
200 40 X 5.06 276111 60241313 07915821T 07915615S
240 60 X 4.13 276113 60241315 07915821S 07915615R
300 60 X 5.06 276113 60241315 07915821T 07915615S
(1) SHELL PINION RATIO. ALSO ORDER PINION
SHAFT07915821J AND KEY 55089.
SIZE C350S & T
RATIO
WORM
SHAFT
WORM
GEAR
HELICAL
PINION
HELICAL
GEAR
6.2 (1) 5 X 1.22 276114 60207767 07915822A 07915616J
7.5 (1) 5 X 1.50 276114 60207767 07915822B 07915616K
9.4 5 X 1.84 276114 60207767 07915822C 07915616L
10 5 X 2.25 276114 60207767 07915822D 07915616M
15 5 X 2 . 7 6 2 7 6114 6 0 2 0 7767 0 7 9 15822E 0 7 9 15616N
18 5 X 3.37 276114 60207767 07915822F 07915616P
20 5 X 4.13 276114 60207767 07915822G 07915616R
22.61 10 X 2.25 276116 60242403 07915822D 07915616M
25 5 X 5.06 276114 60207767 07915822H 07915616S
30 7.5 X 4.13 276115 60207763 07915822G 07915616R
33.3 10 X 3.37 276116 60242403 07915822F 07915616P
38 7.5 X 5.06 276115 60207763 07915822H 07915616S
40 10 X 4.13 276115 60242403 07915822G 07915616R
47.12 25 X 1.84 276121 275593 07915822C 07915616L
50 10 X 5.06 276116 60242403 07915822H 07915616S
60 15 X 4.13 276118 60242404 07915822G 07915616R
64.19 12.67 X 5.06 276117 60207708 07915822H 07915616S
75 15 X 5.06 276118 60242404 07915822H 07915616S
80 29 X 4.13 276120 60242405 07915822G 07915616R
86 25 X 3.37 276121 275593 07915822F 07915616P
100 20 X 5.06 276120 60242405 07915822H 07915616S
125 25 X 5.06 276121 275593 07915822H 07915616S
150 30 X 5.06 276122 275594 07915822G 07915616S
160 40 X 4.13 276123 60242407 07915822G 07915616R
200 40 X 5.06 276123 60242407 07915822H 07915616S
240 60 X 4.13 276125 275595 07915822G 07915616R
300 60 X 5.06 276125 275595 07915822H 07915616S
(1) SHELL PINION RATIO. ALSO ORDER PINION SHAFT
07915821U AND KEY 50994.