This bearing set is a needle roller bearing kit, made of bearing steel through forging, precision machining and quenching heat treatment. The bearing raceway is polished and coated with anti-rust oil for protection, with supporting NBR rubber and PTFE seals. Suitable for core parts such as slewing bearings and traveling mechanisms of medium and large excavators, it features high hardness, high wear resistance and high rotation precision, and can withstand heavy radial loads and impact loads. The seals can effectively prevent dust and oil contamination and extend the service life of the bearing. The kit includes bearing main body, sealing ring and other accessories, precisely matched according to the original factory model of the excavator, easy to install, and supports customization of non-standard bearing sizes.
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