Abstract

This chapter focuses on belt friction. It presents power transmission by belt drive. For a belt to transmit power between two pulleys there must be a difference in tension on either side of the driving and driven pulleys. The difference in belt tensions is known as the effective tension. The ratio of belt strains can be calculated by neglecting the mass of the belt and considering the mass of belt. The tensions in the tight and slack sides of a belt are limited by the coefficient of friction μ between the belt material and the pulley, and the angle of contact or angle of lap θ that the belt makes with the pulley.

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