Page 347 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair
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Installation and Maintenance of VBelt Drives 327
'Deflection height
h = 1Iw1' per inch of span
t
h=-
64
where t = Span length, inches
C = Center distance, inches
D = Larger sheave diameter, inches
d = Smaller sheave diameter, inches
Figure 7-14. Determination of span length and deflection of belt drives.
L = Belt length, inches
M = Centrifugal constant, Table 8-1
N = Number of belts or V-band ribs
P = Deflection force, pounds
S = Belt speed, FPM/1000
t = Span length, inches (refer to Figure 8-14)
Y = Belt constant, Table 8-2
