1228E1045
Bearing Assembly, Drive Pinion Spigot
Meritor

Specialized bearing assembly that supports the interface between a drive pinion and the supporting structure within the powertrain. It reduces friction at rotation interfaces, contributes to stable phasing of gear meshes, and controls axial and radial loads during torque delivery. The assembly helps maintain tight tolerances across critical contact surfaces, reducing wear on bearings, seals, and gears. By preserving alignment as temperatures rise and loads shift, it minimizes gear whine and noise while prolonging service life. The components are manufactured to withstand the harsh environment inside driveline housings, resisting contamination and retaining lubrication with robust seals. In service, technicians replace the entire assembly as part of drivetrain service to restore power transfer efficiency, enable smooth acceleration, and sustain reliability for heavy-duty operations across long-haul, regional, and vocational segments.