Terex
Locking pinion bolt for Terex BT4792
This locking pinion bolt secures the pinion within the rotation gearbox assembly of the Terex BT4792 crane. It prevents unwanted movement to maintain precise turret rotation and power transmission.
Parts diagram
Compatible models
Specifications
- Part number
- 901-00172
- Brand
- Terex
The locking pinion bolt, part number 901-00172, serves as a fastener within the rotation gearbox assembly of Terex BT4792 cranes. Its primary function is to secure the pinion in its designated position, preventing axial or radial displacement that could interfere with the transmission of torque to the slewing ring. By maintaining the pinion's alignment, this component ensures the stability and control of the crane's superstructure during lifting and positioning operations.
This specific component is designed for use in the Terex BT4792 model. It is engineered to withstand the mechanical stresses, including vibration and torque, encountered within the rotation system. Proper installation of this bolt is necessary to prevent pinion misalignment, which can lead to accelerated gear wear or mechanical failure within the rotation drive.
In heavy machinery, locking bolts and fasteners are used to fix rotating elements in place, ensuring that gears remain properly meshed. By securing the pinion, the bolt maintains the integrity of the gear train, allowing for smooth and controlled rotation of the crane's upper works.

