bearing precision grade

• July 29. 2026

ZHZB Full Range Special Bearings for Excavators - Product Description Developed for excavators operating under harsh working conditions featuring heavy loads, impact forces, abundant dust and continuous high stress, ZHZB manufactures a complete lineup of special bearings. The products cover core components including slewing systems, travel mechanisms, working equipment and hydraulic motors. Featur...

• August 11. 2026

Introduction of BF3170Z Spherical Roller Bearing 1. Main Material The inner ring, outer ring and rolling rollers of BF3170Z double-row spherical roller bearing are forged and quenched with GCr15 high-carbon chromium bearing steel, It features high hardness, outstanding wear resistance, fatigue resistance and pressure resistance. The solid machined brass cage in the middle has great toughness and f...

• October 10. 2026

Picking proper replacement bearing for construction machinery depends on working load, operating environment, material and precision grade. Wrong selection causes early wear, equipment downtime and higher maintenance cost. Construction machinery bearings work in extremely harsh conditions: heavy shock load, sand, dust, mud and frequent start stop operation. Many buyers only compare price when purc...