belt apparatus
Quick Summary
A belt drive is a machine that uses a flexible belt connecting two pulleys on parallel shafts to transmit and modify rotary motion. These belts can be flat, made of leather, rubber, or fabric, running on cylindrical pulleys, or V-shaped, running on grooved pulleys. V-belts require less tension and are effective for closely spaced shafts.1
Belts must be tensioned to create friction with the pulleys. If overloaded, belts can slip, which can prevent damage to machinery. Flat belts can connect non-parallel shafts, with pulley placement and sometimes idler pulleys guiding the belt. Crossed belts cause shafts to rotate in opposite directions, while open belts cause them to rotate in the same direction. Toothed or timing belts offer a positive drive without overload protection. A beltman is a worker who maintains machine belts. Beltwork refers to applying power from a tractor to machines using a pulley and belt.123
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