Warner Electric SFC-120, SFC-170, SFC-250, SFC-400 Bearing Mounted, Flange Mounted - Manual (Page 16)

16 Warner Electric • 800-825-9050 P-200
• 819-0481
SF-170 Clutch Flange Mounted
Armature View
For Bore sizes
see chart below.
Customer Shall Maintain:
1. Squareness of field mounting face with shaft with
.003 T.I.R. measured at pilot diameter.
2. Concentricity of field mounting pilot diameter with
rotor mounting shaft within .003 T.I.R.
Armature Shaft .250 – .375
Rotor Shaft .250 – .375
Static Torque 15 lb.in.
Maximum Speed 5,000 rpm
Standard Voltage D.C. 6, 24, 90
All dimensions are nominal unless otherwise noted.
Rotor Bore Dimensions
Rotor Keyway Armature
Bore Dia. Bore Dia.
.251/.250 .062/.031 .2522/.2507
.313/.312 .062/.031 .3145/.3130
.376/.375 .093/.047 .3773/.3755
Field View
For Bore sizes & Keyway
sizes see chart below.
Std. Arm.
Antibacklash
Arm.
.204/.187 dia. 4 holes
equally spaced on
2.125 diameter.
Mounting holes are
within .010 of true posi-
tion relative to pilot
diameter.
Pilot
Dia.
45°
2.437
2.435
1.812
1.718
Max. Dia.
Std. Arm
Anti. Arm
.751
.750
.633
.629
.751/.750
pilot dia.
backing plate
only
.086 (Std.)
.094 (Anti.)
When New
.035/.004 (Std.)
.021/.009 (Anti.)
12
.375
.062
.160
.150
.437
Max.
#8-32
UNC-3A
.040
.000
1
.750
.035/.004
.021/.009
.484 (Std.)
.390 (Anti.)
.632
.031
.484
(Std.)
.390
(Anti.)
.086
(Std.)
.094
(Anti.)
*
*Diameter over knurl.
.187
1.703 Max.