THE WORLD OF TIMING BELTS - MAELabs UCSD

Table 43 Rated Horsepower for Small Pulleys — 15 mm Belt Width
The following table represents the horsepower 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 horsepower rating (see Step 7 of SECTION 24, on
page T-146). See Table 42 for torque ratings.
Belt Width (mm)
Width Multiplier
9
0.60
15
1.00
Number of Grooves 18 20 22 24 26 28 32 36 40 44 48 56
Pitch
Diameter
mm
inches
28.65
1.128
31.83
1.253
35.01
1.379
38.20
1.504
41.38
1.629
44.56
1.754
50.93
2.005
57.30
2.256
63.66
2.506
70.03
2.757
76.39
3.008
89.13
3.509
10
20
40
60
100
0.01
0.02
0.04
0.06
0.09
0.01
0.03
0.05
0.07
0.11
0.02
0.03
0.06
0.09
0.14
0.02
0.04
0.07
0.10
0.16
0.02
0.04
0.08
0.11
0.18
0.02
0.05
0.09
0.12
0.20
0.03
0.06
0.10
0.15
0.24
0.03
0.06
0.12
0.18
0.28
0.04
0.07
0.14
0.20
0.32
0.04
0.08
0.16
0.22
0.36
0.05
0.09
0.17
0.25
0.40
0.06
0.11
0.21
0.30
0.48
200
300
400
500
600
0.17
0.24
0.30
0.36
0.42
0.21
0.29
0.37
0.45
0.53
0.25
0.35
0.45
0.54
0.64
0.29
0.41
0.52
0.64
0.74
0.33
0.47
0.60
0.73
0.85
0.36
0.52
0.67
0.82
0.96
0.44
0.63
0.82
1.00
1.17
0.52
0.75
0.96
1.17
1.38
0.59
0.86
1.11
1.35
1.59
0.67
0.96
1.25
1.52
1.79
0.74
1.07
1.39
1.70
2.00
0.89
1.29
1.67
2.04
2.40
rpm
of
800
1000
1200
1400
1600
0.52
0.62
0.72
0.81
0.90
0.67
0.80
0.93
1.05
1.17
0.81
0.97
1.13
1.29
1.43
0.95
1.15
1.34
1.52
1.70
1.09
1.32
1.54
1.75
1.96
1.23
1.49
1.74
1.98
2.22
1.50
1.83
2.14
2.44
2.74
1.78
2.16
2.53
2.90
3.25
2.05
2.49
2.92
3.34
3.75
2.31
2.82
3.31
3.78
4.25
2.58
3.14
3.69
4.22
4.74
3.10
3.78
4.44
5.08
5.71
Fastest
Shaft
1800
2000
2400
2800
3200
0.98
1.06
1.21
1.35
1.49
1.28
1.39
1.60
1.80
1.99
1.58
1.72
1.99
2.24
2.49
1.87
2.04
2.37
2.68
2.98
2.16
2.36
2.75
3.11
3.47
2.45
2.68
3.12
3.54
3.95
3.03
3.31
3.86
4.39
4.90
3.59
3.93
4.59
5.23
5.84
4.15
4.55
5.31
6.04
6.75
4.71
5.15
6.02
6.85
7.65
5.25
5.75
6.72
7.64
8.53
6.32
6.92
8.08
9.19
10.25
3600
4000
5000
6000
8000
1.61
1.73
2.00
2.23
2.59
2.17
2.34
2.74
3.10
3.69
2.73
2.95
3.48
3.96
4.76
3.27
3.55
4.20
4.79
5.80
3.81
4.14
4.91
5.62
6.81
4.34
4.72
5.61
6.42
7.80
5.40
5.87
6.99
8.00
9.69
6.43
6.99
8.32
9.51
11.46
7.43
8.09
9.61
10.96
13.09
8.42
9.16
10.86
12.34
14.59
9.39
10.20
12.06
13.66
15.95
11.25
12.20
14.33
16.06
—
10000
12000
14000
2.82
2.91
2.86
4.11
4.36
4.42
5.36
5.75
5.90
6.56
7.06
7.26
7.72
8.30
8.52
8.82
9.46
9.65
10.89
11.54
—
12.75
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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.
5 mm Pitch PowerGrip ® GT ® Belts
64
101.86
4.010
0.07
0.13
0.24
0.35
0.55
1.04
1.50
1.94
2.38
2.80
3.62
4.41
5.18
5.93
6.66
7.38
8.07
9.41
10.69
11.89
13.03
14.09
16.40
18.15
—
—
—
—
1960
392
2000
400
1.30
20
1.33
72
114.59
4.511
0.08
0.14
0.27
0.39
0.63
1.18
1.71
2.22
2.71
3.19
4.13
5.03
5.91
6.76
7.60
8.40
9.19
10.70
12.13
13.47
14.71
15.86
18.25
—
—
—
—
—
25
1.67
80
127.32
5.013
0.08
0.16
0.30
0.44
0.70
1.33
1.92
2.49
3.04
3.58
4.63
5.65
6.63
7.58
8.51
9.41
10.29
11.96
13.52
14.97
16.30
17.50
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