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1–143
B Bore
Selection
20° PRESSURE ANGLE
AGMA Q10
1/8, 3/16 & 1/4 BORES
.104 FACE
HUBS: 303 Stainless Steel
SPRINGS: Stainless Steel
S 1 A 5 A -
CATALOG NUMBER DESIGNATION:
No.
of
Teeth
No.
of
Teeth
P.D.
O.D.
Hub Style*
.1248 (1/8)
3
.1873 (3/16)
4
.2498 (1/4)
6
Code
Size
Dia.
Code
Dia.
Code
Pin Type
Clamp Type
H
C
3
4
6
.1248 (1/8)
.1873 (3/16)
.2498 (1/4)
P
P
P
.31
.37
.50
C
C
C
.188
.250
.312
* Two style codes available per bore size.
Available on special order: 14-1/2° pressure angle, teeth not listed, different bore size, passivation for stainless steel.
B Bore Code
303 Stainless Steel
S
2024 Aluminum
A
T4 or T351 Alloy
Anodized before cutting
Hub Style Code (See below)
Material Code – Gears
Pin Type
P
Clamp Type
C
D.
.385
.104
SET SCREW
SUPPLIED
1/8
SUB
DRILL
.385
.104
PIN TYPE
CLAMP TYPE
FOR CLAMPS
SEE INDEX
H
B+.0005
-.0000
+.000
-.003
P.D.
C
Precision
Component
Anti-Backlash Gears - 120 Pitch
1 2 0
160
165
170
175
180
185
190
195
200
210
220
230
240
250
260
270
280
290
300
310
320
360
1.3333
1.3750
1.4167
1.4583
1.5000
1.5417
1.5833
1.6250
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
3.0000
1.350
1.392
1.433
1.475
1.517
1.558
1.600
1.642
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
3.017
Example:
S1A53A-C120S200 is a Stainless Steel Clamp Type
Anti-Backlash Gear with 200 teeth and .1248 Bore.
