7810105210 Original Loader Ball Bearing for ZW310-6

Part number 7810105210 is a specialized part number for Hitachi's original loader ball bearings. This ball bearing is a key support and transmission component in the rotating mechanism, walking mechanism, or working device of a loader, mainly used to support the rotating shaft, reduce friction, and withstand radial and axial loads. As an original standard component, it is mainly suitable for Hitachi's multiple series of wheel loaders, such as the LW series (such as LW300, LW500, LW800, etc.). This part may correspond to common deep groove ball bearings or angular contact ball bearing models in the aftermarket (such as 6205, 6306 series, etc.), but to ensure that the installation size, accuracy level, and load-bearing capacity fully match the original machine design, it is necessary to verify the specific loader model, installation location (such as wheel hub, slewing support, gearbox), and detailed specifications of the bearings (inner diameter, outer diameter, width).

This original ball bearing belongs to high-precision deep groove ball bearings or angular contact ball bearings. Its core structure includes an inner ring, an outer ring, high-precision steel balls, and a cage (usually made of stamped steel or engineering plastic). Some models also come with a sealing cover (ZZ or 2RS) to protect against impurities. As an original component, it is made of high-quality high carbon chromium bearing steel (such as GCr15), which undergoes precision forging, heat treatment (quenching and tempering), and ultra precision grinding to achieve extremely high dimensional accuracy (usually up to P5 or higher level), rotational accuracy, rigidity, and wear resistance. Its design can withstand the radial force and certain axial force of the loader under heavy load, impact, and complex working conditions, while maintaining low friction, low noise, and long-life operation. It is the basic core component to ensure smooth rotation, smooth walking, and efficient power transmission of the loader.

The maintenance core of this ball bearing lies in regular lubrication, checking the status, and standardized installation. Lubrication management: It is necessary to strictly follow the cycle and grease model specified in the maintenance manual to add or replace lubricating grease. For sealed bearings, it is necessary to check whether the seal is intact; For open bearings, the oil nozzle needs to be cleaned before filling. Status check: It is recommended to check the bearing parts for abnormal noise, overheating, or looseness every 500 working hours or during regular maintenance. If the equipment experiences rotational jamming, abnormal noise, or significant increase in radial/axial clearance, it should be dismantled and inspected in a timely manner.