Product Description:

Flange screw

OE NO.:  985201

Applicable vehicle type: For Volvo

The camshaft gear bolt is a critical fastener in the engine camshaft assembly, used to secure the camshaft gear (or sprocket, timing gear) to the camshaft. Its working principle involves using the clamping force of the bolt to reliably mount the camshaft gear onto the camshaft, ensuring that the camshaft does not experience axial movement or loosening during rotation. This maintains the engine's timing synchronization and the precise timing of valve opening and closing.

Camshaft gear bolts are extensively employed in various automotive engines, serving as a critical component of the engine's timing system. Their primary applications include:

• Engine timing systems: Virtually all engines utilising camshaft gear drives (such as conventional petrol engines, hybrid engines, etc.) employ camshaft gear bolts to secure the timing gears.
• Timing Chain/Belt Drive: Camshaft gear bolts connect the camshaft to the timing sprocket or timing pulley. In chain-driven engines, these bolts secure the sprocket to the camshaft, with the chain driving the camshaft via the sprocket. In belt-driven engines, the principle is similar, but the transmission component is a belt.
• Variable Timing Control: In engines equipped with Variable Camshaft Timing (VCT) systems, the camshaft gear may incorporate VCT actuators or hydraulic adjusters. The camshaft gear bolts must not only secure the gear but also ensure axial positioning of the VCT components.

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