Recently, a batch of large-module gear shafts at Shenyang Sanland Mining Engineering Co., Ltd. completed gear tooth machining on large hobbing machines. After turning, the shafts were set up for continuous hobbing under sufficient coolant, producing clean tooth surfaces and accurate tooth profiles, ready for assembly into the drive systems.

The gear shaft is a core component of the drive system of crushers, grinding mills and other machines, transmitting torque from the motor and gearbox to the girth gear or the drive mechanism. Tooth profile accuracy, pitch error and coaxiality with the journal directly determine the smoothness, noise level and service life of the drive, making gear shaft machining a key indicator of a manufacturer's transmission component capability.

Sanland gear shafts are made of quality alloy steel forgings, each inspected for material and soundness on arrival, rough turned, quenched and tempered, then finish turned at the journals and seating faces before hobbing on large gear hobbing machines. Machining the gear section and the journals in a single setup ensures coaxiality between the gear and the bearing journals, and tooth profile, pitch and lead are inspected item by item with records kept.

Supported by large hobbing equipment and mature heat treatment and machining processes, Sanland is capable of batch machining gear shafts of large diameter and large module, supplying crushers, mills, gearboxes and the spare parts market with consistent quality built on years of gear machining experience.

Shenyang Sanland Mining Engineering Co., Ltd. specializes in the manufacturing of crushing, screening and grinding equipment. With transmission components manufactured in-house alongside the main machines, Sanland provides complete support from complete machines to spare parts through strict process control.

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