Introduction to V-Belt drives

In the process of installing a V-belt drive system, the motor and driven component should be checked for a soft foot condition and excessive run-out. The shaft run-out should be no more than _______.

0.002 in.

The maximum allowable deflection force on a belt is _______ than the minimum deflection force.

50% greater

The three basic components for a belt drive system are _______.

V-Belt, drive sheave, and driven sheave

Pitch is defined as the distance between a point and a similar corresponding point. Examples of pitch are ________.

chains, threads, gears

In a belt drive system, as the pulley ratio increases, shaft speed on the driven pulley will ______ and shaft torque will _______.

decrease, increases

Belt span is defined as the ______.

distance between the points on the sheaves where the belt touches each sheave.

A V-belt should ride _______ in the groove, with its top near the top of the sheave, and not touch the _______ of the sheave.

high, bottom

A fractional horsepower (FHP) V-belt is used for ______.

low power, intermittent operation

Pulley ratio is defined as the ratio of _______.

pitch diameter of the driven pulley to the pitch diameter of the driver pulley

The pitch circle of a belt drive is _______.

the place in the belt which represents the center of the force being transmitted by the belt

One important characteristic of a timing belt is that it _______.

will not slip during operation

The most basic way to test the tension of a belt is to use _______.

your sense of touch