0730 301 844 Thick Main Shaft Bearing Shim

0730 301 844 Reinforced Main Shaft Bearing Shim is an important adjusting component inside ZF 12TX 12-speed AMT gearbox. Mounted at the installation position of the main shaft bearing, it functions for clearance compensation, axial positioning and even pressure distribution.

It features high flatness and strict tolerance control, bears force evenly without eccentric wear, and fully meets the technical requirements of original factory assembly process.

It can effectively solve the excessive clearance problem caused by wear of old parts, and avoid common faults such as loose bearing fit, gearbox abnormal noise and power jitter.

With original specifications and excellent interchangeability, it is easy to disassemble and install, and serves as an essential precision part for the maintenance and assembly of ZF automatic gearboxes.

Reinforced special shim for main shaft bearing is precision stamped from high-hardness alloy steel. It features uniform overall thickness, flat surface without deformation, and superior compression and impact resistance.

With hardening and anti-rust treatment, it is oil-resistant, high-temperature resistant, and not prone to rusting or collapsing, making it suitable for long-term heavy-load and high-duty working conditions.

It is mainly used for large clearance compensation and bearing preload adjustment, precisely controlling the axial clearance of the main shaft and reducing axial play, jitter and transmission abnormal noise.

Made to original precision dimensions with perfect assembly fit, it requires no grinding during replacement installation. It firmly fixes the bearing position, effectively protects the shaft, bearings and gear assembly, and prolongs the service life of the gearbox.