construction machinery spare parts

• November 05. 2020

1. When disassembling the bearing, please wear protective clothing and goggles; 2. When using a puller to disassemble the bearing, make sure to select a suitable puller with sufficient pulling force to reduce the risk of puller overload. Overloading of the puller may cause breakage of the mechanical arm or shaft, which may injure the operator; 3. When disassembling, use a protective cover to wrap ...

• May 09. 2026

How ZHZBearing Matches the Optimal Precision Grade Bearings for You? In bearing selection, the matching of precision grades directly affects the operational efficiency and long-term cost of equipment. With an in-depth understanding of construction machinery and industrial equipment scenarios, ZHZBearing can provide you with cost-effective bearing solutions ranging from P0 to P5 grades. As a suppli...

• 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...