2648337051 Original Loader Bearing Seat for ZW160-7

The part number 2648337051 is a genuine bearing housing unit produced by Hitachi Japan. A support chain (link rail) system specifically designed for crawler excavators or bulldozers, serving as an installation and support base for support wheels, guide wheels, or idler wheels. Mainly suitable for Hitachi ZX series crawler excavators.

This product is an integrated cast iron (or cast steel) bearing seat with a very thick and sturdy structure, with a precision machined cylindrical bearing mounting hole in the center. The flange base with through holes on both sides is used to firmly connect with the equipment chassis through high-strength bolts. Its core function is to provide a high rigidity installation platform for the rollers of the support chain (supporting wheels, idler wheels, etc.), with tapered roller bearings installed internally to withstand the weight of the entire machine and ground impact, and ensure smooth rotation of the rollers.

Inspection cycle: Every 250 working hours, check whether the fixing bolts of the bearing seat are loose, whether there is oil leakage at the sealing part, and whether there is any abnormal noise or temperature rise in the bearing. Replacement timing: When there are cracks in the bearing seat, severe wear on the bearing mounting hole, or damage to the sealing surface that cannot be repaired, it must be replaced. During installation, it is necessary to ensure that the installation surface of the bearing seat is flat to avoid breakage due to uneven stress; Rust prevention treatment is required during storage.