This document provides specifications for the Clutch Heavy Duty SF-1225 Bearing Mounted clutch. It lists dimensions, torque and speed ratings, voltage options, and part numbers for the components. The clutch has a shaft size range of 0.500-2.500 inches, a static torque of 465 lb-ft, and can operate at up to 2,200 rpm. It includes an exploded diagram labeling the individual parts.

1. Clutch Heavy Duty
SF-1225 Bearing Mounted
.350/.342 7.000
58
Shaft Size .500 – 2.500
Static Torque 465 lb.ft.
Maximum Speed 2,200 rpm
Standard Voltage D.C. 6, 24, 90
3.062 Dia.
ARMATURE VIEW
45°
3.750
FIELD VIEW
.397/.388 dia. (8) holes
(hub) equally spaced on
3.625 dia. and within .003
of true position in relation
to 4.313/4.311 pilot dia.
Removable plug in ends
FIELD VIEW
.343
.875
for 1/2" conduit.
8.687 Max.
See page 252 for details
on Bushings.
Customer Shall Maintain:
1. Armature hub pilot diameter to be concentric with
field and rotor mounting shaft within .010 T.I.R.
.359
1.750
1.500
.562
1.562
.187
.718 Max.
7.531
1.546
.093
Max.
Length of
Customer
Pilot
1.500
12.625
Dia.
12.703
Max.
Dia.
7.062
Dia.
4.313/4.311
Pilot
Dia. 2.625
3.125
Dia.
.125
.062
3/8-16
UNC-2A
4.921 Max.
® U
L
All dimensions are nominal unless
otherwise noted.
Information on inertia and weights
begins on page 239. Coil data is on
pages 250 and 251.
Sold & Serviced By:
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com

2. Heavy Duty Clutch
SF-1225 Bearing Mounted
59
Drawing I-25622
6
4-3
4-4
Item Description Part Number Qty.
4-5 Retainer Ring 748-0011 1
4-6 Rotor Hub 540-1304 1
4-7 Buttonhead Screw 797-1261 8
4-8 Ring Adapter 748-0591 1
4-9 Lockwasher 950-0359 6
4-10 Sockethead Screw 797-0424 6
5 Bushing* 180-0185 to 180-0217 1
6 Conduit Box 5200-101-012 1
How to Order:
1. Specify Bore Size for Item 5.
2. Specify Voltage for Item 4.
3. See Controls Section.
Example:
SF-1225 Clutch per I-25622 - 90 Volt, 1" Bore
These units, when used in conjunction with the correct
Warner Electric conduit box, meet the standards of
UL508 and are listed under guide card #NMTR, file
#59164. These units are CSA certified under file
#LR11543.
3
(Shipped Assembled)
Item Description Part Number Qty.
1 Splined Hub 540-0148 1
2 Accessory Mounting 5202-101-001 1
3 Armature & Adapter Assembly 5203-111-001 1
3-1 Armature 5323-111-034 1
3-2 Splined Adapter 104-0010 1
3-3 Autogap Accessory 5323-101-002 1
3-4 Screw 797-0356 4
3-5 Locknut 661-0005 4
3-6 Spacer 266-0004 4
4 Field & Rotor Assembly 1
6 Volt 5203-452-009
24 Volt 5203-452-011
90 Volt 5203-452-012 1
4-1 Rotor 1
Standard Friction Material 5203-751-001
†Optional LK Facing 5203-751-004
4-2 Field 1
6 Volt 5203-451-034
24 Volt 5203-451-036
90 Volt 5203-451-037
4-3 Retainer Ring 748-0119 1
4-4 Ball Bearing 166-1047 1
*See page 252 for specific part numbers.
Refer to Service Manual P-215.
†Optional LK facing available. For more information, see
page 232.
1
2
3-5
3-2
3-3
3-6
3-4
5
3-1
4-6
4-1 4-7
4-8
4-2
4
(Shipped Assembled)
4-9
4-10
4-5
Sold & Serviced By:
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com