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If you are tired of frequent downtime and costly repairs on your construction machine, choosing a high quality slewing bearing matters a lot. Many equipment owners only check the part number and ignore material heat treatment and sealing structure, which leads to early failure of the slew ring. A good excavator swing bearing features forged rings hardened raceways and heavy duty rubber seals to bl...
The swing bearing, also known as slewing bearing, is the critical component that lets an excavator rotate its upper structure smoothly. It carries heavy axial, radial and tilting loads all day long. With constant shock, dust, water intrusion and poor lubrication, it will wear out gradually. If you ignore early warning signs, you may face sudden breakdown, costly repair and longer downtime. Below a...
Many global buyers struggle with markup from middlemen, unstable quality, unavailable custom service and unpredictable lead time when sourcing construction machinery spare parts. As an integrated manufacturer & exporter, ZHZB runs our own production workshop and professional foreign trade team. We cover the whole workflow from R&D, manufacturing, quality inspection, warehousing to shipment...
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...
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...
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...
How to Extend Excavator Travel Gearbox Bearing Life in Dusty Sites Dust is the main cause of premature bearing damage in excavator travel gearboxes. Simple maintenance plus premium bearings from ZHZBearing can greatly extend bearing service life and lower your machine downtime. Maintain Seals Check oil seals and dust rings daily. Replace cracked or leaking seals immediately. Install double-lip dus...
1. Disassembly Notes Stop and power off the equipment, release pressure and cool down the machine, and clean surface oil and impurities. Use professional tools to disassemble ZHZB bearings. Violent knocking is prohibited to prevent damage and deformation of shafts and bearing seats, and keep the mounting reference intact. 2. Fault Inspection Disassemble and clean ZHZB bearings, and inspect the sta...
Key Bearing Inspection Instruments for Metrology Laboratories - contour and roughness measuring instrument. Designed for bearings and precision parts, it performs high-precision contact scanning and inspection on the contour dimensions, surface roughness, waviness and geometric tolerances of key parts such as bearing raceways, inner and outer rings, and outputs accurate data reports. It is a criti...
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