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1–141
No.
of
Teeth
3
4
6
A
S
.104 FACE
AGMA Q10
20° PRESSURE ANGLE
B, Bore Size
.1248 (1/8)
.1873 (3/16)
.2498 (1/4)
CATALOG NUMBER DESIGNATION:
2024 Aluminum
T4 or T351 Alloy
Anodized before cutting
Material Code
303 Stainless Steel
Available on special order: 14-1/2° pressure angle, teeth not listed, different bore size, passivation for stainless steel.
Fairloc® hubs require controlled shaft tolerances.
Suggested clearance fit between the bore and the shaft is .0001/.0008.
.385
.104
FAIRLOC® HUB
CLEARANCE RADIUS
.31 MAX
.53
+.0005
B-.0000
P.D. O.D.
Precision
Component
HUBS: 303 Stainless Steel
SPRINGS: 302 Stainless Steel, Spring Tempered
Example:
S1A56A-F120A200 is an Aluminum Anti-Backlash
Gear with 200 Teeth and .2498" Bore Fairloc® Hub.
S 1 A 5 A - F 1 2 0
Fairloc® Hub Anti-Backlash Gears - 120 Pitch
No.
of
Teeth
P.D.
O.D.
1.350
1.433
1.517
1.600
1.683
1.767
1.850
1.933
2.017
2.100
2.183
2.267
2.350
2.433
2.517
2.600
2.683
2.767
2.850
2.933
3.017
1.3333
1.4167
1.5000
1.5833
1.6667
1.7500
1.8333
1.9167
2.0000
2.0833
2.1667
2.2500
2.3333
2.4167
2.5000
2.5833
2.6667
2.7500
2.8333
2.9167
3.0000
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