2055130 Original Loader Hydraulic Parts Bearing for Hitachi ZW310-6 

Part number 2055130 is a specialized part number for Hitachi's original loader bearings. This bearing is a key support and transmission component in the rotating, walking, working device or transmission system of the loader. According to the general information of Hitachi loader accessories, it may be compatible with Hitachi ZW series wheel loaders, and common models may include ZW140, ZW180, ZW220, ZW250, ZW310, ZW330, ZW370, ZW550, etc. The original part number is 2055130, which must be used as the reference for verification during procurement.

This bearing is the core component of the loader that bears radial, axial, and composite loads. Its core function is to support the rotating shaft, reduce the coefficient of motion friction, and ensure the accuracy of rotation or transmission. As an original component, it is usually made of high carbon chromium bearing steel or carburizing steel, which has undergone precision forging, heat treatment, and ultra precision grinding processing, and has extremely high hardness, wear resistance, and contact fatigue strength. Its structure may be deep groove ball bearings, tapered roller bearings, or self-aligning roller bearings depending on the application site, with precision raceways and retainers designed internally.

The maintenance core of this bearing lies in regular lubrication, condition monitoring, and standardized disassembly and assembly. According to the working conditions, the specified type of lithium based or composite lithium based grease should be added through the oil nozzle every 100 to 250 working hours. The amount of grease added should be such that a small amount of old grease is squeezed out of the seal by new grease to avoid excess. Status monitoring: Every 500 working hours, a vibration detector or stethoscope can be used to check the vibration value of the bearing, early detection of defects such as peeling and pitting.