January 2026
Intermediate
900 pages
23h 23m
English
Content preview from Machine Design, 2nd Edition by Pearson
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CHAPTER 21
V-Belt Drive
Chapter Objectives
- List the merits and demerits of the V-belt drive over the flat belt drive.
- List the properties of five sections of the V-belt.
- Determine the power rating of a V-belt.
- Determine the design power of a V-belt.
- Determine the length of a V-belt for an open-belt drive.
- Determine the standard pitch length of a V-belt.
- Determine the speed of the faster pulley from the design power of a V-belt.
- Determine the ratio of belt tensions for a V-belt.
21-1 INTRODUCTION
A V-belt runs into the grooves of pulleys. The resulting wedge action greatly improves the frictional force between belt and pulley. In a flat belt, the coefficient of friction μ is increased to μ cosec β (between the V-belt and the pulley) where, ...
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