THE WORLD OF TIMING BELTS - MAELabs UCSD

Table 42 (Cont.) Rated Torque (N⋅m) for Small Pulleys — 15 mm Belt Width
(See Table 43 for hp or kW ratings)
The following table represents the torque ratings for each belt in its base width at
the predetermined number of grooves, pitch diameters and rpm's. These ratings
must be multiplied by the appropriate width factor and applicable belt length factor
to obtain the corrected torque rating (see Step 7 of SECTION 24, on page T-146).
Number of Grooves
Pitch
Diameter
rpm
of
Fastest
Shaft
mm
inches
10
20
40
60
100
200
300
400
500
600
800
1000
1200
1400
1600
1800
2000
2400
2800
3200
3600
4000
5000
6000
8000
10000
12000
14000
18
28.65
1.128
8.84
8.18
7.52
7.13
6.64
5.98
5.59
5.32
5.11
4.93
4.66
4.44
4.27
4.12
3.99
3.88
3.78
3.60
3.45
3.31
3.19
3.09
2.85
2.65
2.31
2.01
1.73
1.45
20
31.83
1.253
10.58
9.84
9.11
8.68
8.14
7.40
6.97
6.67
6.43
6.24
5.93
5.69
5.50
5.33
5.19
5.06
4.95
4.75
4.58
4.43
4.30
4.17
3.91
3.68
3.28
2.92
2.59
2.25
22
35.01
1.379
12.32
11.51
10.70
10.23
9.63
8.82
8.38
8.01
7.75
7.54
7.20
6.94
6.73
6.54
6.39
6.24
6.12
5.90
5.71
5.54
5.39
5.26
4.96
4.70
4.24
3.82
3.41
3.00
24
38.20
1.504
14.03
13.15
12.27
11.75
11.10
10.22
9.71
9.34
9.05
8.82
8.45
8.17
7.93
7.73
7.56
7.41
7.27
7.03
6.82
6.64
6.47
6.32
5.98
5.69
5.16
4.67
4.19
3.69
26
41.38
1.629
15.74
14.78
13.83
13.27
12.57
11.61
11.05
10.66
10.35
10.10
9.70
9.39
9.13
8.92
8.73
8.56
8.41
8.15
7.92
7.72
7.54
7.37
7.00
6.66
6.06
5.49
4.92
4.33
28
44.56
1.754
17.44
16.41
15.38
14.78
14.02
12.99
12.39
11.96
11.63
11.36
10.93
10.60
10.32
10.09
9.89
9.71
9.54
9.26
9.01
8.79
8.59
8.41
7.99
7.62
6.94
6.28
5.61
4.91
32
50.93
2.005
20.83
19.65
18.48
17.79
16.92
15.75
15.06
14.57
14.19
13.88
13.39
13.01
12.69
12.42
12.19
11.98
11.79
11.46
11.17
10.91
10.67
10.45
9.95
9.49
8.62
7.76
6.85
—
36
57.30
2.256
24.19
22.87
21.55
20.77
19.80
18.48
17.70
17.15
16.72
16.37
15.82
15.39
15.03
14.73
14.46
14.22
14.01
13.62
13.29
12.99
12.71
12.45
11.85
11.29
10.20
9.08
—
—
5 mm Pitch PowerGrip ® GT ® Belts
Belt Width (mm)
Width Multiplier
40
63.66
2.506
27.52
26.05
24.58
23.72
22.64
21.17
20.31
19.70
19.22
18.83
18.21
17.73
17.33
16.99
16.69
16.43
16.18
15.75
15.37
15.02
14.70
14.40
13.68
13.01
11.65
—
—
—
44
70.03
2.757
30.84
29.22
27.60
26.66
25.47
23.85
22.90
22.23
21.71
21.28
20.60
20.06
19.62
19.24
18.91
18.61
18.34
17.85
17.42
17.02
16.65
16.30
15.46
14.65
12.99
—
—
—
9
0.60
48
76.39
3.008
34.14
32.37
30.61
29.58
28.28
26.51
25.48
24.74
24.17
23.70
22.96
22.37
21.89
21.47
21.11
20.78
20.47
19.93
19.44
18.99
18.57
18.16
17.18
16.21
14.20
—
—
—
15
1.00
56
89.13
3.509
40.67
38.61
36.55
35.35
33.83
31.78
30.57
29.71
29.04
28.49
27.62
26.93
26.36
25.86
25.42
25.02
24.65
23.98
23.38
22.80
22.26
21.72
20.41
19.06
—
—
—
—
For Belt
From
Length (mm)
# of teeth
200
40
215
43
260
52
315
63
375
75
450
90
540
108
650
130
780
156
935
187
1130
226
1355
271
1625
325
Length
To
Length (mm)
# of teeth
210
42
255
51
310
62
370
74
445
89
535
107
645
129
775
155
930
186
1125
225
1350
270
1620
324
1955
391
Length Correction Factor 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25
Shaded area indicates drive conditions where reduced service life can be expected.
64
101.86
4.010
47.14
44.79
42.44
41.06
39.33
36.98
35.60
34.61
33.85
33.22
32.21
31.41
30.75
30.17
29.65
29.18
28.74
27.93
27.18
26.47
25.77
25.08
23.35
21.54
—
—
—
—
1960
392
2000
400
1.30
20
1.33
72
114.59
4.511
53.56
50.92
48.27
46.72
44.77
42.13
40.57
39.46
38.60
37.88
36.74
35.84
35.07
34.40
33.80
33.25
32.73
31.76
30.85
29.97
29.10
28.23
25.99
—
—
—
—
—
25
1.67
80
127.32
5.013
59.95
57.01
54.07
52.35
50.18
47.24
45.51
44.27
43.31
42.51
41.23
40.21
39.34
38.58
37.89
37.24
36.63
35.49
34.39
33.32
32.24
31.15
—
—
—
—
—
—