Warner Electric SFC-120, SFC-170, SFC-250, SFC-400 Bearing Mounted, Flange Mounted - Manual (Page 38)

38 Warner Electric • 800-825-9050 P-200
• 819-0481
SFC-250 Clutch Coupling Flange Mounted
Armature Shaft .375 – .750
Rotor Shaft .375 – .500
Static Torque 70 lb. in.
Maximum Speed 7,500 rpm
Standard Voltage D.C. 6, 24, 90
All dimensions are nominal unless otherwise noted.
Customer Shall Maintain:
1. Squareness of field mounting face with rotor shaft
within .003 T.I.R. measured at pilot diameter.
2. Concentricity of field mounting pilot diameter with
rotor mounting shaft within .003 T.I.R.
3. Rotor and armature shafts in line within .003 T.I.R.
Bore and Keyway Dimensions
Armature Keyway Rotor Keyway
Bore Dia. Bore Dia.
.376/.375 .093 x .046
*.438/.437 .376/.375 .093 x .046
.501/.500 .125 x .062 *.438/.437 .125x .062
*.563/.562 .501/.500
.626/.625
*.688/.687 .187 x .093
.751/.750
* Available on special order only.
Armature View
Field View
1.187
(Std.)
.171
.171 (Std.)
.562 (Anti.)
.437
Max.
8-32 UNC-
3A
.546
Max.
.171
.062
.343
Max.
1.063
1.061
Pilot Dia.
.015
.380/.370
Backing Plate
Only
1.390
(Anti.)
.015 When New
2.625
Max.
Dia.
.687
1.125
.468
1.968 (Std.)
1.984 (Anti.)
.750
1.250
Std. Arm.
Antibacklash
Arm.
For Bore & Keyway sizes
see chart below.
3.500/3.498
Pilot Dia.
.437 Max.
.437 Max.
12°
24°
45°
For Bore & Key-
way sizes see
chart below.
.204/.187 dia. (4) holes equally spaced on
3.125 dia. Mounting holes are within .010 of
true position relative to pilot diameter.
2.625 Sq.