The pulley, which is used to increase the angle of contact, is called a/an ________ pulley.
idler
An idler pulley guides or tensions the belt. When suitably positioned, it increases the belt’s wrap angle on the main pulley, improving grip and the ability to transmit power without slipping.
Important Questions from Belt Drive
In a multiple V belt drive, when a single belt is damaged, it is preferable to change the complete set to _____.
In a compound belt drive, an engine pulley A of dia.750 mm rotating at 150 RPM drives pulley B of dia. 450 mm.Pulley C of dia. 900 mm keyed to the same shaft of pulley B drives dynamo pulley of dia. 150 mm. Speed of dynamo pulley is
In belt drive power transmitted is given by:
(Where Tt, Ts, and v are tight side tension, slack side tension and linear velocity of belt respectively)The mass of the belt per unit length in belt drive of pulleys is 10 kg/m. The maximum tension in a belt is 3000 N. The velocity of the belt for maximum power transmission:
If the tension in tight side and slack side of the belt is 3000 N and 1500 N, respectively. The effective driving force at the circumference of the driven pulley is given by:
