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Timing belt

The timing belt is a critical component in power transmission systems responsible for precise synchronization between the crankshaft and camshaft. These belts are typically made from neoprene rubber reinforced with fiberglass or Kevlar fibers. The tensile strength of the belt ranges from 1500 to 3000 Newtons, preventing elongation under load conditions. The belt width varies between 10 and 40 millimeters, with a thickness generally between 4 and 8 millimeters. The belt teeth are designed with a pitch of 8 or 9.525 millimeters to ensure precise engagement with pulleys. ISO 13050 and DIN 7721 standards are commonly applied to control the quality of timing belt manufacturing.

The tooth profile of timing belts can be trapezoidal, curvilinear, or RPP, each optimized for specific operating conditions. Belts are produced in open or endless loop types, commonly ranging from 500 to 1600 millimeters in length. The operating temperature range is defined from -30 to +120 degrees Celsius. In industrial and automotive applications, the belt must operate slip-free with minimal deviation. The expected service life under standard conditions is between 60,000 and 100,000 kilometers or approximately 5,000 hours of operation. Manufacturing quality, uniform thickness, and precise tooth molding significantly affect the belt’s durability and accuracy.


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