A timing pulley, also known as a timing sprocket, is a toothed wheel that works in conjunction with a timing belt or timing chain to synchronize the rotation of the engine’s crankshaft and camshaft(s).

Similar to a timing belt, a timing pulley has teeth on its outer circumference that mesh with corresponding teeth on the timing belt or chain. The teeth on the pulley and belt/chain are designed to fit together precisely, allowing for a positive transfer of rotational motion from the crankshaft to the camshaft(s).

Our timing pulleys are typically made of metal, such as steel or aluminum, to withstand the stresses and forces involved in engine operation. They are manufactured using precise machining processes to ensure accurate tooth profiles and dimensions.

The number of teeth on the timing pulley determines the gear ratio between the crankshaft and the camshaft(s). This gear ratio is crucial for maintaining the correct valve timing in relation to the piston positions. By adjusting the tooth count on the pulley, manufacturers can fine-tune the engine’s performance characteristics.