Terex
Pinion bolt for Terex BT4792
This pinion bolt secures the gear within the rotation gearbox assembly of the Terex BT4792 crane. It ensures the pinion remains properly seated to transmit torque to the slewing ring.
Parts diagram
Compatible models
Specifications
- Part number
- 901-00185
- Brand
- Terex
The 901-00185 pinion bolt acts as a fastener within the rotation gearbox assembly of the Terex BT4792 crane. Its primary function is to secure the pinion gear, which meshes with the slewing ring to facilitate the rotation of the crane superstructure. By maintaining a firm connection, this bolt allows for the effective transmission of torque from the swing motor to the rotating structure of the machine.
This component is designed for use in the Terex BT4792 model. Proper installation of this bolt is necessary to prevent excessive play within the gear system and to avoid misalignment between the pinion and the crown gear. Maintaining the correct torque on this fastener is a standard procedure during maintenance of the slewing system to ensure consistent operation.
In heavy machinery, pinion bolts provide the necessary clamping force to keep drive gears in their designated positions under load. They are subjected to the mechanical stresses and vibrations inherent in rotation systems. Secure fastening is required to maintain the alignment of the gear train, which supports smooth and controlled movement during crane operations.

