Jaw Crusher Eccentric Shafts — Crusher Spare Parts

While this page focuses specifically on jaw crushers, the content confirms that jaw crushers are used across mining and ore crushing, construction and demolition processing, and aggregate and quarrying operations. Jaw crushers are one of the primary crusher types used in these industries, with the eccentric shaft serving as the critical drive component in all jaw crusher configurations.

A jaw crusher consists of a fixed jaw, a movable jaw, an eccentric shaft, toggle plates, a flywheel, bearing housings, a pitman, side plates, and a tension rod. The eccentric shaft is the core rotating component that drives the pitman up and down, generating the crushing motion that breaks rock and ore between the two jaw plates.

Jaw crusher eccentric shafts are typically manufactured from high-strength alloy steel or stainless steel to withstand heavy impact loads and continuous operation. Krupa Services also offers shafts in brass, copper, and aluminum depending on specific application requirements, all produced through precision forging and machining processes.

Yes. Krupa Services manufactures eccentric shafts to customer-supplied drawings and specifications. Customization includes material selection, shaft diameter, eccentric offset, length, and surface finish. This ensures direct compatibility with OEM crusher models from leading manufacturers in the mining, construction, and aggregate processing industries.

Eccentric shafts at Krupa Services are produced using a combination of forging and precision CNC machining. Forging improves grain structure and mechanical strength, while machining ensures dimensional accuracy and surface finish. This dual-process approach results in shafts that deliver reliable performance under the high-load, high-cycle conditions of jaw crusher operation.

Signs that an eccentric shaft requires replacement include excessive vibration during crusher operation, visible wear or cracking on the shaft surface, increased bearing temperatures, abnormal noise from the pitman assembly, and reduced crushing efficiency. Regular inspection intervals aligned with your crusher's maintenance schedule help identify wear before catastrophic failure occurs.

After submitting your specifications through Krupa Services, the engineering team will respond with pricing, lead times, and customization options within one business day. Krupa Services is backed by 100+ vetted manufacturers and a robust global sourcing network to ensure timely delivery of crusher spare parts worldwide.