1358 302 250 Rear Bearing Race of Main Shaft

1358 302 250 Rear Main Shaft Bearing Race is a key supporting component of the main shaft assembly for ZF 12TX series 12-speed AMT gearboxes.

It is mainly matched with the rear end bearing and undertakes the functions of raceway support, radial positioning and load distribution.

Adopting precision turning and mirror surface grinding technology, it features minimal errors in roundness and coaxiality, and avoids eccentric wear and position deviation during long-term operation.

With anti-corrosion and strengthening surface treatment, it adapts to complex road conditions such as trunk logistics and engineering heavy-duty transportation.

It effectively prevents problems including loose bearing fit, gear abnormal noise and power jitter.

Adopting original universal specifications, it delivers an excellent fit for maintenance and replacement.

Original ZF Rear Main Shaft Bearing Race is integrally forged from high-precision bearing steel and treated by carburizing and quenching for hardening. It features high hardness, excellent compression resistance and impact resistance.

The inner ring raceway is precision ground with high surface finish and low running resistance, achieving an excellent fit with rolling elements.

It can accurately limit the bearing structure and stabilize the assembly clearance at the rear end of the main shaft, eliminating axial play and offset displacement.

With high temperature resistance and fatigue resistance, it is not prone to deformation or peeling, making it suitable for heavy-load climbing and frequent gear shifting conditions.

Original standard dimensions allow direct replacement, effectively reducing gearbox abnormal noise and extending the service life of bearings and shaft parts.