Стопорная гайка ведущей шестерни мотора Caterpillar 5121861

The Motor Lock Plate Pinion Nut is a retention component used in motor-driven gear assemblies to secure the pinion shaft in position. It maintains correct axial preload and prevents the nut from loosening due to vibration, torque fluctuations, and operational shock loads. Installed at the threaded end of the motor pinion shaft, the nut works in conjunction with a locking plate mechanism to mechanically restrict rotation after tightening. This locking function is used in maintaining gear alignment, bearing preload, and proper meshing between the pinion and mating gears.Attributes:• Prevents rotational loosening under vibration.• Supports proper gear meshing alignment.• Withstands high torque loading conditions.Applications: The Motor Lock Plate Pinion Nut is installed on the threaded end of a motor pinion shaft within gear and driveline assemblies. It works with a locking plate to secure the shaft and maintain gear alignment.