Page 156 - Analysis and Design of Machine Elements

Analysis and Design of Machine Elements
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0.40 0.3 0.34
Increment of basic power ratings of single standard V-belts, ΔP 0 , kW 0.25 0.23 0.26 0.15 0.09
0.35
0.30
2800 rpm
0.20
0.17
0.15
0.13
1450 rpm
0.11
0.10
700 rpm
0 0.05 0.06 0.07 0.08
1.0 1.1 1.2 1.3 1.4 1.5 2.0
Speed ratio, i
(a) Belt type A
1.0
0.89
Increment of basic power ratings of single standard V-belts, ΔP 0 , kW 0.6 0.59 2800 rpm 0.46
0.79
0.8
0.69

0.4 0.31 0.36 0.20 0.22
0.40
1450 rpm

0.2

0 0.15 0.17 700 rpm
1.0 1.1 1.2 1.3 1.4 1.5 2.0
Speed ratio, i
(b) Belt type B 2.19 2.47

2.5
Increment of basic power ratings of single standard V-belts, ΔP 0 , kW 2.0 1.64 1.92 1.14 1.27

2800 rpm
1.5

0.99
1.0
1450 rpm
0.85
0.62
0.5
700 rpm
0 0.41 0.48 0.55
1.0 1.1 1.2 1.3 1.4 1.5 2.0
Speed ratio, i
(c) Belt type C
Figure 6.10 Increment of basic power ratings of single standard V-belts ΔP , kW [1, 4].
0