What is V Belt Drive?

This v belt drive uses only v belts and is passed over the driver and driven pulleys. The open and cross belt drives are only possible with v belts.

The motion or power is transmitted from one shaft to another shaft by means of belts, i.e., these belts are used when the two shafts are apart at some distance.

Belt drives produce the least amount of noise and vibration.

When the belt is rotating in a clockwise direction or the belt motion is from driver to driven pulley or the belt is in forwarding motion, then the upper part of the belt is under sag, called as the slack side of the belt.

This portion is always under compression

The lower portion of the belt under tension is called as the tight side of the belt. There is a friction between the belt and pulley which provides the grip and enables the power to transmit between two pulleys.

In a belt-drive, the power transmission depends on the amount of friction between pulley and belt. The slip can be eliminated by running the v belt with a slower speed.

The pulley used for v belt drive is slightly crowned to avoid the belt from running out of it. Then the v belt can be run with higher speed.

The crowning of the pulley holds the v belt centrally. The effective pulling power of the belt causes the rotation of the driven pulley, and it is the difference between the tensions on tight and slack sides.

The materials used for the pulley are cast iron, steel, and steel alloys. For low speeds and light work applications, usually, wood is recommended.

The drive is obtained by using either v belts

V belt drives are suitable to transmit power from one place to another place when the distance between the two places or pulleys or shafts is larger, and v belts are for short distance.

The ends of the v belts are joined by using rivets, nuts, and bolts or joined by lacing or cementing methods. Wires are also used to join the v belt ends since this method is easier and joined quickly.

This article comes from mechathon edit released

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