Page 237 - Industrial Power Engineering and Applications Handbook

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the required .suitability and should be sent to the (h) Weight of pulley on motor shaft (kg)
manufacturer for their opinion: (i) Magnitude of pulley force P (kgf or N)
(j) Inclination pof the pulley system to the horizontal
1 (a) 'Qpe of driven equipment plane as shown in Figure 8.18.
(b) 'Ifipe of bearings provided in the driven equipment
(c) Whether any thrust or radial load is falling on I
the motor bearings from the driven equipment.
2 Details of the belt drive (Figures 8.17 and 8.18)
(a) of belt: flat or V-belts and their width or
numbers
(b) Diameter of pulley on motor shaft D1 (mm) I
(c) Width of pulley on motor shaft W1 (mm) Driven equipment
(d) Diameter of pulley on load side D2 (mm)
(e) Width of pulley on load side W2 (mm)
(f) Does the centre of the hub coiacide with the Driven equipment
centre of the rim of the pulley? If not, what is the
eccentricity, E, in mm?
(g) Distance between centres of pulleys, C (mm)

Centre
Centre of hub \ E/ of rim
1

Motor Driven equipment
Figure 8.17 Mounting of motor pulley Figure 8.18 Disposition of driving and driven-end pulleys

Relevant Standards

IEC Title IS BS IS0
- FLAT BELT 137011993 351 22
Transmission belting friction and surface rubber belting
- specifications
- V BELTS 3142l1993 379011995 4183
Pulleys - V grooved for endless V-belts sections Z, A, B, C, D
and E and endless wedge belt
Sections SPZ, SPA, SPB and SPC - Specifications
- Endless V-belts for industrial purposes 2494-111994 3790/1995 4184
- Industrial V-belt drives - calculation of power ratings 5292/1980
Pulley and V ribbed belts for industrial applications- 9982/1998
PH, PJ, PK, PL and PM profiles

Notes
1 In the tables of relevant Standards in this book while the latest editions of the standards are provided, it is possible that revised editions
have become available. With the advances of technology and/or its application, the updating of standards is a continuous process by
different standards organizations. It is therefore advisable that for more authentic references, readers should consult the relevant
organizations for the latest version of a standard.
2 Some of the BS or IS standards mentioned against IEC may not be identical.
3 The year noted against each standard may also refer to the year of its last amendment and not necessarily the year of publication.