SPUR GEARS
APPROXIMATE HORSEPOWER AND TORQUE* RATINGS
FOR CLASS I SERVICE (Service Factor = 1.0)
5 DIAMETRAL PITCH STEEL
No.
Teeth
12
14
15
16
18
20
25 RPM
50 RPM
20° PRESSURE ANGLE
100 RPM
24
25
28
30
35
40
45
50
60
70
80
100
110
120
140
160
180
300 RPM
600 RPM
900 RPM
REFERENCE PAGE 34.
1200 RPM
1800 RPM
H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque
1.14
1.49
1.67
1.81
2.12
2.44
2865
3756
4198
4565
5332
6141
2.22
2.89
3.23
3.50
4.08
4.68
2794
3647
4069
4416
5138
5894
4.22
5.47
6.08
6.58
7.60
8.66
2662
3449
3833
4146
4789
5456
5 DIAMETRAL PITCH CAST IRON
No.
Teeth
200 RPM
2-1/2" FACE
25 RPM
50 RPM
100 RPM
7.71
9.87
10.90
11.72
13.38
15.07
2431
3110
3435
3693
4216
4750
10.65
13.48
14.81
15.85
17.92
20.02
2237
2832
3112
3329
3766
4205
17.19
21.25
23.11
24.47
27.15
29.79
1805
2233
2427
2570
2852
3129
20° PRESSURE ANGLE
200 RPM
300 RPM
21.61
26.31
28.41
29.89
32.77
35.58
1513
1843
1990
2093
2295
2492
24.80
29.87
32.09
33.61
36.56
39.41
1302 29.09 1019
1569 34.53 1209
1686 36.87 1291
1765
1920
2070
2-1/2" FACE
600 RPM
900 RPM
REFERENCE PAGE 34.
1200 RPM
1800 RPM
H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque H.P. Torque
1.82
1.91
2.21
2.40
2.97
3.47
3.98
4.38
5.32
6.27
7.23
8.71
9.68
10.38
11.70
13.30
14.49
4599
4826
5571
6050
7477
8737
10040
11046
13399
15794
18229
21969
24409
26168
29508
33526
36534
3.48
3.64
4.18
4.52
5.54
6.42
7.31
7.98
9.53
11.06
12.59
14.78
16.22
17.19
18.97
21.13
22.61
4381
4588
5267
5700
6982
8087
9216
10056
12008
13945
15869
18630
20449
21669
23910
26631
28495
6.35
6.63
7.54
8.10
9.78
11.17
12.56
13.53
15.78
17.93
20.00
22.67
24.50
25.58
27.50
29.94
31.40
4002
4177
4750
5108
6164
7040
7916
8528
9944
11300
12605
14288
15439
16125
17334
18870
19787
10.82
11.24
12.60
13.42
15.85
17.75
19.59
20.75
23.48
26.00
28.34
30.92
32.88
33.85
35.49
37.83
38.97
3411
3542
3970
4230
4995
5593
6174
6540
7400
8192
8932
9745
10362
10666
11182
11921
12281
14.15
14.64
16.23
17.18
19.98
22.08
24.09
25.25
28.05
30.58
32.92
2972
3075
3410
3609
4199
4639
5060
5304
5892
6425
6916
20.41
20.97
22.81
23.86
27.04
29.21
31.26
32.22
34.81
2144
2203
2396
2506
2840
3068
3284
3384
3657
23.95
24.51
26.37
27.41
3600 RPM
H.P. Torque
3600 RPM
H.P. Torque
1677
1716
1847
1920
Ratings are based on strength calculation. Basic static strength rating, or for hand operation of above gears is approximately 3 times the 100 RPM rating.
NOTE: Ratings to right of heavy line are not recommended, as pitch line velocity exceeds 1000 feet per minute.
They should be used for interpolation purposes only.
*Torque Ratings (Lb. Ins.).
STAINLESS STEEL GEAR GAUGE SET
14-1/2° and 20° PRESSURE ANGLES
This handy, steel gear gauge set consists of 16 leaves — 24 gauges — to measure both 14-1/2° and 20° pressure angle tooth form, in diametral pitch sizes 64,
48, 32, 24, 20, 16, 12, 10, 8, 6, 5 and 4. Pitch sizes 8, 6, 5 and 4 both 14-1/2°
and 20° are cut on individual leaves. Pitch sizes 64 through 10 inclusive, have
both 14-1/2° and 20° pressure angles on a single leaf.
SOLD ONLY AS A COMPLETE SET
ORDER BY CATALOG NUMBER OR ITEM CODE
50
Gear Catalog
®
Catalog Number
Item Code
Gear Gauge
06000