Page 225 - Industrial Power Engineering and Applications Handbook

Transmission of load and suitability of bearings 8/205

Table 8.1 Power ratings (kW/25 mm) for different widths of flat belts with 180" arc of contact on a smaller pulley
Type 1
Belt Speed of faster Smaller pulley diameter (mm)
type shaft (cp.m.)
100 125 160 200 250 315 400
720 0.48 0.78 1.15 1.61 2.19 2.85 3.63
960 0.62 1 .oo 1.45 2.05 2.77 3.55 4.38
1440 0.87 1.39 2.01 2.80 3.70 4.59
100 0.09 0.14 0.20 0.29 0.39 0.53 0.67
200 0.16 0.25 0.37 0.53 0.73 0.95 1.24
300 0.23 0.37 0.53 0.75 1.03 1.37 1.77
400 0.29 0.47 0.69 0.97 1.33 1.74 2.26
4 x 28 500 0.35 0.57 0.84 1.18 1.61 2.11 2.72
and 600 0.41 0.67 0.98 1.38 1.88 2.46 3.15
4x31 700 0.47 0.77 1.12 1.58 2.14 2.78 3.55
800 0.53 0.86 1.25 1.76 2.39 3.10 3.92
900 0.59 0.95 1.38 1.94 2.62 3.40 4.26
1000 0.65 1.04 1.51 2.12 2.85 3.67 4.56
1200 0.75 1.20 1.75 2.44 3.26 4.15 5.03
1400 0.85 1.36 1.98 2.74 3.63 4.53 5.32
1600 0.95 1.51 2.18 3.01 3.95 4.81
1800 1.04 1.66 2.37 3.25 4.19
~ ~
2000 3.45 4.38
~ ~
2200 3.61 4.49
2400 3.73
Type 11
Belt Speed of faster Smaller pulley diameter (mm)
rype sha8 (cp.m.)
80 100 125 160 200 250 315
720 0.44 0.61 0.85 1.21 1.62 2.09 2.61
960 0.56 0.78 1 .os 1.55 2.06 2.64 3.26
1440 0.80 1.10 1.52 2.16 2.84 3.57 4.24
2880 1.88 2.52 3.39
100 0.08 0.11 0.15 0.22 0.29 0.38 0.48
200 0.14 0.20 0.28 0.40 0.53 0.69 0.87
300 0.20 0.28 0.39 0.57 0.76 0.99 1.24
400 0.26 0.36 0.51 0.73 0.98 1.27 1.59
500 0.32 0.44 0.62 0.89 1.19 1.53 1.93
600 0.37 0.52 0.72 1.04 1.39 1.79 2.25
3 x 32 700 0.43 0.59 0.83 1.18 1.58 2.04 2.55
and 800 0.48 0.67 0.93 1.33 1.77 2.28 2.83
3 x 34 900 0.53 0.74 1.03 1.47 1.96 2.51 3.11
1000 0.58 0.81 1.12 1.60 2.13 2.73 3.36
1200 0.68 0.94 1.31 1.87 2.47 3.14 3.81
1400 0.78 1.08 1.49 2.11 2.78 3.50 4.18
1600 0.87 1.20 1.66 2.34 3.07 3.81 4.45
1800 1.32 1.82 2.56 3.32 4.07
~ ~
2000 1.44 1.97 2.76 3.54 4.28
2200 1.55 2.11 2.93 3.73 4.42
2400 1.65 2.25 3.09 3.89
2600 1.75 2.37 3.23 4.00
2800 1.85 2.48 3.35 4.07
3000 2.58 3.44
3200 2.67 3.51

Source IS 1370. See also IS0 22