Link-Belt
Center pinion bearing for Link-Belt LS278-H
This center pinion bearing supports radial and axial loads within the transmission system of the Link-Belt LS278-H crawler crane. It facilitates smooth rotation and maintains proper gear alignment during operation.
Compatible models
Specifications
- Part number
- 3H2070
- Brand
- Link-Belt
The center pinion bearing, identified by part number 3H2070, serves as a supporting component within the transmission and reduction gear assemblies of heavy machinery. Its primary function is to manage radial and axial loads generated by the center pinion, enabling efficient rotation while minimizing friction. By maintaining the precise alignment of internal gears, this component ensures the effective transfer of power throughout the drivetrain, which is necessary for the consistent operation of the machinery.
This component is specifically designed for use in the Link-Belt LS278-H lattice boom crawler crane. It integrates into the gearboxes or propulsion systems where the center pinion transmits power to the swing mechanisms or the undercarriage. Proper installation of this bearing supports the movement and positioning requirements of the crane during heavy lifting and material handling tasks.
In heavy equipment, pinion bearings are engineered to handle rotational forces and load distribution within the transmission housing. These bearings allow shafts to rotate with minimal resistance, which prevents misalignment and excessive heat buildup in the gear train. Regular inspection of these components helps maintain the structural integrity of the transmission system.

