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         We, TEC BELTING COMPANY, the subsidiary of TEC GROUP INC. are one of the biggest suppliers in China who specializes in the manufacture of all kinds of Power Transmission Belts and Conveyor Belts, including Industrial Belt, Agricultural Belt, Automotive Belt, Motorcycle Belt, Fabri…

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Timing Belt

 

Timing belt
Belt-drive cog on a belt-driven bicycle

Timing belts, (also known as toothednotchcog, or synchronous belts) are a positive transfer belt and can track relative movement. These belts have teeth that fit into a matching toothed pulley. When correctly tensioned, they have no slippage, run at constant speed, and are often used to transfer direct motion for indexing or timing purposes (hence their name). They are often used in lieu of chains or gears, so there is less noise and a lubrication bath is not necessary. Camshafts of automobiles, miniature timing systems, and stepper motors often utilize these belts. Timing belts need the least tension of all belts, and are among the most efficient. They can bear up to 200 hp (150 kW) at speeds of 16,000 ft/min.

Timing belts with a helical offset tooth design are available. The helical offset tooth design forms a chevron pattern and causes the teeth to engage progressively. The chevron pattern design is self-aligning. The chevron pattern design does not make the noise that some timing belts make at certain speeds, and is more efficient at transferring power (up to 98%).

Disadvantages include a relatively high purchase cost, the need for specially fabricated toothed pulleys, less protection from overloading and jamming, and the lack of clutch action.