FALK Steelflex T10 Instruction Manual

How To Use This Manual
This manual provides detailed instructions on maintenance,
lubrication, installation, and parts identification. Use the table
of contents below to locate required information.
Table of Contents
Introduction ................................Page1
Lube Fittings ................................Page1
Limited End Float.............................Page1
Lubrication ..............................Pages 1-2
Installation &Alignment Instructions .............Pages 2-4
Annual Maintenance, Relube &Disassembly .........Page4
Installation &Alignment Data....................Page5
Parts Identification &Parts Interchangeability......... Page6
CAREFULLY FOLLOW THE INSTRUCTIONS IN THIS
MANUAL FOR OPTIMUM PERFORMANCE AND TROUBLE
FREE SERVICE.
INTRODUCTION
This manual applies to Sizes 1150T thru 1260T and 150T thru
260T Falk SteelfIex Tapered Grid Couplings. Unless otherwise
stated, information for Sizes 1020T thru 1140T applies to Sizes
150T thru 260T respectively, e.g. 1150T = 150T, 1260T =
260T, etc. These couplings are designed to operate in either
the horizontal or vertical position without modification.
The performance and life of the couplings depend largely upon
how you install and service them. Carefully follow the
instructions in this manual for optimum performance and
trouble free service.
CAUTION: Consult applicable local and national safety codes
for proper guarding of rotating members. Observe all safety
rules when installing or servicing couplings.
WARNING: Lockout starting switch of prime mover and remove
all external loads from drive before installing or servicing
couplings.
LUBE FITTINGS
Cover halves have 3/8NPT Iube holes. Use a standard grease
gun and Iube fitting as instructed on Page 4.
LIMITED END FLOAT
When electric motors, generators, engines, compressors and
other machines are fitted with sleeve or straight roller bearings,
limited axial end float kits are recommended for protecting the
bearings. Falk Steelflex couplings are easily modified to limit
end float; refer to Manual 428-820 for instructions.
LUBRICATION
Adequate lubrication is essential for satisfactory operation.
Page 2provides alist of typical lubricants and specifications
for general purpose and long term greases. Because of its
superior lubricating characteristics and low centrifuge
properties, Falk Long Term Grease (LTG) is highly
recommended.
The use of general purpose grease requires re-lubrication of
the coupling at least annually.
Long Term Grease (LTG)
The high centrifugal forces encountered in couplings separate
the base oil and thickener of general purpose greases. Heavy
thickener, which has no lubrication qualities, accumulates
in the grid-groove area of Steelflex couplings resulting in
premature hub or grid failure unless periodic lubrication cycles
are maintained.
Falk Long Term Grease (LTG) was developed specifically for
couplings. It resists separation of the oil and thickener. The
consistency of Falk LTG changes with operating conditions. As
manufactured it is an NLGI #1/2 grade. Working of the
lubricant under actual service conditions causes it to become
semifluid while the grease near the seals will set to a heavier
grade, helping to prevent leakage.
LTG is highly resistant to separation, easily out performing all
other lubricants tested. The resistance to separation allows the
lubricant to be used for relatively long periods of time.
Steelflex couplings initially lubricated with LTG will not require
re-lubrication until the connected equipment is stopped for
servicing. If a coupling leaks grease, is exposed to extreme
temperatures, excessive moisture, or experiences frequent
reversals, more frequent lubrication may be required.
Although LTG grease is compatible with most other coupling
greases, the mixing of greases may dilute the benefits of LTG.
USDA Approval
LTG has the United States Department of Agriculture Food Safety
& Inspection Service approval for applications where there is no
possibility of contact with edible products. (H-2 ratings).
CAUTION: Do not use LTG in bearings.
®
The Falk Corporation, P.O. Box 492, Zip 53201-0492 428-112
3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone: [phone] May 2000
Fax: [phone] e-mail: [email protected] web: www.falkcorp.com Supersedes 12-98
Steelflex®Couplings •Installation and Maintenance
Type T10 •Sizes 1150–1260 & 150–260 (Page 1 of 6)
TYPE T10 STEELFLEX COUPLING

Specifications — Falk LTG
The values shown are typical and slight variations are permissible.
AMBIENT TEMPERATURE RANGE — –20°F (–29°C) to 250°F
(121°C). Min. Pump = 20°F (–7°C).
MINIMUM BASE OIL VISCOSITY — 3300SSU (715cST) @
100°F (38°C).
THICKENER — Lithium & soap/polymer.
CENTRIFUGE SEPARATION CHARACTERISTICS — ASTM
#D4425 (Centrifuge Test) — K36 = 2/24 max., very high
resistance to centrifuging.
NLGI GRADE (ASTM D-217) — 1/2
CONSISTENCY (ASTM D-217) — 60 stroke worked penetration
value in the range of 315 to 360 measured at 77°F (25°C)
MINIMUM DROPPING POINT — 350°F (177°C) minimum
MINIMUM TIMKEN O.K. LOAD — 40 lbs.
ADDITIVES — Rust and oxidation inhibitors that do not corrode
steel or swell or deteriorate synthetic seals.
Packaging
14 oz. (0,4 kg ) CARTRIDGES — Individual or case lots of 10
or 60.
35 lb. (16 kg )PAIL, 120 lb. (54 kg ) KEG & 400 lb. (181 kg)
DRUMS.
General Purpose Grease
Annual Lubrication — The following specifications and
lubricants for general purpose grease apply to Falk Steelflex
couplings that are lubricated annually and operate within
ambient temperatures of 0°F to 150°F (–18°C to 66°C). For
temperatures beyond this range (see Table 1), consult
the Factory.
If a coupling leaks grease, is exposed to extreme temperatures,
excessive moisture or experiences frequent reversals, more
frequent lubrication may be required.
Specifications — General Purpose Coupling
Lubricants
The values shown are typical and slight variations are
permissible.
DROPPING POINT — 300°F (149°C) or higher.
CONSISTENCY — NLGI No. 2 with 60 stroke worked
penetration value in the range of 250 to 300.
SEPARATION AND RESISTANCE — Low oil separation rate and
high resistance to separation from centrifuging.
LIQUID CONSTITUENT — Possess good lubricating properties
... equivalent to a high quality, well refined petroleum oil.
INACTIVE — Must not corrode steel or cause swelling or
deterioration of synthetic seals.
CLEAN — Free from foreign inclusions.
General Purpose Greases Meeting Falk
Specifications
Lubricants listed below are typical products only and should not
be construed as exclusive recommendations.
INSTALLATION OF TYPE T10 STEELFLEX
TAPERED GRID COUPLINGS
Installation
Only standard mechanics tools, wrenches, a straight edge and
feeler gauges are required to install Falk Steelflex couplings.
Clean all parts using a non-flammable solvent. Check hubs,
shafts and keyways for burrs.
INTERFERENCE FIT HUBS — Furnished without setscrews. Heat
hubs to a maximum of 275°F (135°C) using an oven, torch,
induction heater or an oil bath. To prevent damage DO NOT
heat hubs beyond a maximum temperature of 400°F (205°C).
When an oxy-acetylene or blow torch is used, use an excess
acetylene mixture. Mark hubs near the center of their length in
several places on hub body with a temperature sensitive
crayon, 275°F (135°C) melt temperature. Direct flame towards
hub bore using constant motion to avoid overheating an area.
WARNING: If an oil bath is used, the oil must have a flash
point of 350°F (177°C) or higher. Do not rest hubs on the
bottom of the container. Do not use an open flame in a
combustible atmosphere or near combustible materials.
Heat hubs as instructed above. Mount hubs as quickly as possible
with hub flange face flush with shaft end. Allow hubs to cool
before proceeding. Insert setscrews (if required) and tighten.
®
The Falk Corporation, P.O. Box 492, Zip 53201-0492428-112
3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone: [phone]May 2000
Fax: [phone] e-mail: [email protected] web: www.falkcorp.comSupersedes 12-98
Installation and Maintenance •Steelflex®Couplings
(Page 2 of 6) Sizes 1150–1260 & 150–260 •Types T10
TABLE 1 — General Purpose Greases H
Ambient Temperature Range 0°F to 150°F
(-18°C to 66°C)
-30°F to 100°F
(-34°C to 38°C)
Manufacturer Lubricant †Lubricant †
Amoco Oil Co. Amolith Grease #2 Amolith Grease #2
BP Oil Co. Energrease LS-EP2 Energrease LS-EP1
Chevron U.S.A. Inc. Dura-Lith EP2 Dura-Lith EP1
Citgo Petroleum Corp. Premium Lithium Grease EP2 Premium Lithium Grease EP1
Conoco Inc. EP Conolith Grease #2 EP Conolith Grease #2
Exxon Company, USA Unirex N2 Unirex N2
E.F. Houghton & Co. Cosmolube 2 Cosmolube 1
Imperial Oil Ltd. Unirex N2L Unirex N2L
Kendall Refining Co. Lithium Grease L421 Lithium Grease L421
Keystone Div. (Pennwalt) 81 EP-2 81 EP-1
Lyondell Petrochemical (ARCO) Litholine H EP 2 Grease Litholine H EP 2 Grease
Mobil Oil Corp. Mobilux EP111 Mobilith AW1
Petro-Canada Products Multipurpose EP2 Multipurpose EP1
Phillips 66 Co. Philube Blue EP Philube Blue EP
Shell Oil Co. Alvania Grease 2 Alvania Grease 2
Shell Canada Ltd. Alvania Grease 2 Alvania Grease 2
Sun Oil Co. Ultra Prestige 2EP Ultra Prestige 2EP
Texaco Lubricants Starplex HD2 Multifak EP2
Unocal 76 (East & West) Unoba EP2 Unoba EP2
Valvoline Oil Co. Multilube Lithium EP Grease . . .
HGrease application or re-lubrication should be done at temperatures above
20°F (–7°C). If grease must be applied below 20°F (–7°C), consult The Falk
Corporation.
†Lubricants listed may not be suitable for use in the food processing industry;
check with lube manufacturer for approved lubricants.
(.pdf revision)

Maximize Performance And Life
The performance and life of couplings depend largely upon
how you install and maintain them. Before installing couplings,
make certain that foundations of equipment to be connected
meet manufacturers’ requirements. Check for soft foot. The use
of stainless steel shims is recommended. Measuring
misalignment and positioning equipment within alignment
tolerances is simplified with an alignment computer. These
calculations can also be done graphically or mathematically.
Alignment is shown using spacer bar and straight edge. This
practice has proven to be adequate for many industrial
applications. However, for superior final alignment, the use of
dial indicators (see Manual 458-834 for instructions), lasers,
alignment computers or graphical analysis is recommended.
1— Mount Seals And Hubs
Lock out starting switch of prime mover. Clean all metal parts
using a non-flammable solvent. Lightly coat seals with grease
and place on shafts BEFORE mounting hubs. Heat hubs as
previously instructed. Seal keyways to prevent leakage. Mount
hubs on their respective shafts so the hub face is flush with the
end of its shaft unless otherwise indicated.
2 — Gap and Angular Alignment
Use a spacer bar equal in thickness to the gap specified in
Table 2, Page 5. Insert bar as shown above, to same depth at
90° intervals and measure clearance between bar and hub
face with feelers. The difference in minimum and maximum
measurements must not exceed the ANGULAR INSTALLATION
limits specified in Table 2.
3 — Offset Alignment
Align so that a straight edge rests squarely (or within the limits
specified in Table 2)on both hubs as shown above and also at
90° intervals. Check with feelers. The clearance must not
exceed the PARALLEL OFFSET installation limits specified in
Table 2. Tighten all foundation bolts and repeat Steps 2and 3.
Realign coupling if necessary. NOTE: Use a dial indicator for
more accurate alignment.
4 — Insert Grid
Pack gap and grooves with specified lubricant before inserting
grid. When grids are furnished in two or more segments, install
them so that all cut ends extend in the same direction (as detailed
in the exploded view picture above); this will assure correct grid
contact with non-rotating pin in cover halves. Spread the grid
slightly to pass over the coupling teeth and seat with a soft mallet.
®
The Falk Corporation, P.O. Box 492, Zip 53201-0492 428-112
3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone: [phone] May 2000
Fax: [phone] e-mail: [email protected] web: www.falkcorp.com Supersedes 12-98
Steelflex®Couplings •Installation and Maintenance
Type T10 •Sizes 1150–1260 & 150–260 (Page 3 of 6)
MOUNT
SEAL
FIRST

5 — Pack With Grease And Assemble Covers
Pack the spaces between and around the grid with as much
lubricant as possible and wipe off excess flush with top of grid.
Position seals on hubs to line up with grooves in cover. Move
lower cover half into position and block-up in place.
Sizes 1150 thru 1230 — Position gaskets on flange split and
assemble upper cover half with the match mark on the same
side as the lower half (see above). If shafts are not level
(horizontal) or coupling is to be used vertically, assemble cover
halves with the lug and match mark UP or on the high side.
Push gaskets in until they stop against the seals and secure
cover halves with fasteners, tighten to torque specified in Table
2. Make sure gaskets stay in position during tightening of
fasteners. CAUTION: Make certain lube plugs are installed
before operating.
Sizes 1240 thru 1260 — Check all
flange faces for burrs and coat either
half with Permatex #2 or equivalent.
Assemble cover half with the internal pin
(see drawing at right) on the same side
as the lower half. Secure cover with
fasteners and tighten to torque specified
in Table 2. Assemble split seal retainers
so the split is 90° from the cover split.
Secure with fasteners.
CAUTION: Make certain lube plugs are installed before
operating.
ANNUAL MAINTENANCE
For extreme or unusual operating conditions, check coupling
more frequently.
1. Check alignment per steps on Page 3. Ifthe maximum
operating misalignment limits are exceeded, realign the
coupling to the recommended installation limits. See Table
2for installation and operating alignment limits.
2. Check tightening torques of all fasteners.
3. Inspect seal ring and gasket to determine if replacement is
required. If leaking grease, replace.
4. When connected equipment is serviced, disassemble the
coupling and inspect for wear. Replace worn parts. Clean
grease from coupling and repack with new grease. Install
coupling using new gasket as instructed in this manual.
Periodic Lubrication
The required frequency of lubrication is directly related to the type
of lubricant chosen, and the operating conditions. Steelflex
couplings lubricated with common industrial lubricants, such as
those shown in Table 1, should be relubed annually.The use of
Falk Long Term Grease (LTG) will allow relube intervals to be
extended to beyond five years. When relubing, remove both lube
plugs and insert lube fitting. Fill with recommended lubricant until
an excess appears at the opposite hole. CAUTION: Make certain
all plugs have been inserted after lubricating.
Coupling Disassembly And Grid Removal
Whenever it is necessary to disconnect the coupling, remove
the cover halves and grid. A round rod or screwdriver that will
conveniently fit into the open loop ends of the grid is required.
Begin at the open end of the grid section and insert the rod or
screwdriver into the loop ends. Use the teeth adjacent to each
loop as a fulcrum and pry the grid out radially in even, gradual
stages, proceeding alternately from side to side.
®
The Falk Corporation, P.O. Box 492, Zip 53201-0492428-112
3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone: [phone]May 2000
Fax: [phone] e-mail: [email protected] web: www.falkcorp.comSupersedes 12-98
Installation and Maintenance •Steelflex®Couplings
(Page 4 of 6) Sizes 1150–1260 & 150–260 •Types T10
MATCH MARK
MATCH MARK
VERTICAL COUPLINGS
MA
TCH
MA
RK LUG UP
INTERNAL
PIN

TYPE T COUPLING INSTALLATION &
ALIGNMENT DATA
Maximum life and minimum maintenance for the coupling and
connected machinery will result if couplings are accurately
aligned. Coupling life expectancy between initial alignment
and maximum operating limits is a function of load, speed and
lubrication.
Values may be combined for an installation or operating condition.
Example: 1180T max. operating misalignment is .030" parallel
plus .089" angular.
NOTE: For applications requiring greater misalignment, refer
application details to the Factory.
Angular misalignment is dimension X minus Y as illustrated below.
Parallel misalignment is distance P between the hub center
lines as illustrated below.
End float (with zero angular and parallel misalignment) is the axial
movement of the hubs(s) within the cover(s) measured from “O” gap.
®
The Falk Corporation, P.O. Box 492, Zip 53201-0492 428-112
3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone: [phone] May 2000
Fax: [phone] e-mail: [email protected] web: www.falkcorp.com Supersedes 12-98
Steelflex®Couplings •Installation and Maintenance
Type T10 •Sizes 1150–1260 & 150–260 (Page 5 of 6)
TABLE 2 — Misalignment And End Float
CPLG
SIZE
Installation Limits Operating Limits Cover Fastener
Tightening
Torque Values Allow
Speed
(rpm)
Lube Wt
Parallel
Offset-P
Angular
(x-y)
Normal Gap
±10%
Parallel
Offset-P
Angular
(x-y)
End Float
Physical Limit
(Min)2xF
Max
In.
Max
mm
Max
In.
Max
mm In. mm Max
In.
Max
mm
Max
In.
Max
mm In. mm lb-in Nm lb kg
1150T .012 .305 .016 .406 .250 6 .024 .610 .062 1.57 .620 15.7 650 73.4 1500 4.3 1.95
1160T .012 .305 .018 .457 .250 6 .024 .610 .070 1.79 .640 16.3 650 73.4 1350 6.2 2.81
1170T .012 .305 .020 .508 .250 6 .024 .610 .079 2.01 .617 15.7 1300 146.9 1225 7.7 3.49
1180T .015 .381 .022 .559 .250 6 .030 .762 .089 2.26 .717 18.2 1300 146.9 1100 8.3 3.76
1190T .015 .381 .024 .610 .250 6 .030 .762 .097 2.46 .620 15.7 1300 146.9 1050 9.7 4.40
1200T .015 .381 .027 .686 .250 6 .030 .762 .107 2.72 .620 15.7 2300 259.9 900 12.4 5.62
1210T .018 .457 .029 .737 .500 13 .036 .914 .118 3.00 1.02 25.9 2300 259.9 820 23.2 10.5
1220T .018 .457 .032 .813 .500 13 .036 .914 .129 3.28 1.15 29.2 3580 404.5 730 35.4 16.1
1230T .019 .483 .035 .889 .500 13 .038 .965 .142 3.61 1.12 28.4 3580 404.5 680 53.0 24.0
1240T .019 .483 .038 .965 .500 13 .038 .965 .154 3.91 1.12 28.4 5350 604.5 630 74.5 33.8
1250T .020 .508 .042 1.07 .500 13 .040 1.02 .169 4.29 1.12 28.4 5350 604.5 580 110.5 50.1
1260T .020 .508 .046 1.17 .500 13 .040 1.02 .183 4.64 1.01 25.7 5350 604.5 540 148.1 67.2
GAP
Y
X
FF
ANGULAR MISALIGNMENT
P
P
PARALLEL OFFSET MISALIGNMENT END FLOAT

PARTS IDENTIFICATION
All coupling parts have identifying part numbers as shown
below. Parts 3 and 4 (Hubs and Grids), are the same for both
Type T10 and T20 couplings. All other coupling parts are
unique to Type T10. When ordering parts, always SPECIFY SIZE
and TYPE shown on the COVER.
PARTS INTERCHANGEABILITY
Parts are interchangeable between Sizes 20T and 1020T, 30T
and 1030T, etc. except as noted.
GRIDS — Size 1150T thru 1260T Steelflex couplings use blue
grids. Older models, 150T thru 260T, use orange grids.
CAUTION: Blue grids may be used in all applications, but DO
NOT substitute orange grids for blue.
CAUTION: DO NOT mix cover halves of different designs.
WARNING: Mixing grid coupling components from different
manufacturers may cause premature failure and personal or
property damage from flying debris.
®
The Falk Corporation, P.O. Box 492, Zip 53201-0492428-112
3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone: [phone]May 2000
Fax: [phone] e-mail: [email protected] web: www.falkcorp.comSupersedes 12-98
Installation and Maintenance •Steelflex®Couplings
(Page 6 of 6) Sizes 1150–1260 & 150–260 •Types T10
PART NUMBERS
1. Seal (T10)
2. Cover (T10)
3. Hub (Specify bore
and keyway)
4. Grid
5. Gasket (T10)
6. Fasteners (T10) — Cover
7. Lube Plug
8. Seal Retainer
9. Fasteners, Seal
Retainer (T10)
ORDER INFORMATION
1. Identify part(s) required by
name above.
2. Furnish the following
information.
EXAMPLE:
Coupling Size: 1150
Coupling Type: T10
Bore: 7.500
Keyway: 1.75 x .75
Bore: 8.000
Keyway: 2.00 x .75
3. Contact your Falk Distributor or
Falk for price and availability.
LIFTING HOLE
(Cover Only) 72
3
1
4
5
SIZES 1150 THRU 1230
6
2
7
8
9
6
1
3
4
SIZES 1240 THRU 1260