Overview
The taper bushing kit is a complete fastening assembly used to mount and lock the flywheel or belt pulley onto the ends of the eccentric shaft in a jaw crusher. The kit consists of three matched components: a taper lock bushing that creates an interference fit between the shaft and the flywheel bore, a shaft lock nut that applies axial clamping force, and a thrust washer that distributes the load and prevents the nut from loosening under continuous vibration.
Our taper bushing kits are manufactured from 45# or 40Cr alloy steel , with taper surfaces and threads CNC-machined to precise tolerances. Quenching and tempering heat treatment achieves high strength and fatigue resistance, ensuring the connection remains tight and reliable under the heavy dynamic loads of crusher operation.
Quality & Application
Each taper bushing kit passes comprehensive inspection including thread profile verification, dimension check and hardness testing before shipment. Anti-rust coating is applied for protection during storage and transit.
Standard taper bushing kits are stocked for all common PE and PEX series jaw crusher sizes. Custom taper angles, shaft diameters and thread sizes are available for specific crusher configurations. A properly fitted taper bushing kit is essential for secure flywheel mounting, reliable power transmission and prevention of catastrophic flywheel loosening in mining and quarry operations.
Key Features
- Complete Kit: Taper bushing, lock nut and thrust washer supplied as a matched set for proper installation.
- Taper Lock Design: Taper interference fit creates strong, reliable connection between flywheel and eccentric shaft.
- High-Strength Steel: 45# or 40Cr alloy steel with heat treatment provides high clamping force and fatigue resistance.
- Prevents Loosening: Lock nut with thrust washer maintains preload and prevents flywheel loosening under vibration.
- Precision Thread: CNC-machined threads ensure proper engagement and consistent clamping torque.
- Custom Sizes: Custom taper angles, shaft diameters and thread sizes to match your specific crusher model.
Compatible Machines
Fits PE Jaw Crusher (250x400 / 400x600 / 600x900); PE Jaw Crusher (750x1060 / 900x1200); PEX Jaw Crushers (Custom Fit Available).
