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. Featuring heavy-load resistance, high sealing performance, superior wear resistance and anti-ageing properties, these bearings serve as a full replacement for standard bearings, effectively reducing equipment failure rates and maintenance costs.
I. Bearings for Core Components & Advantages
1.1 Slewing Bearings
Core Advantages: Capable of bearing combined loads and overturning moments. Precisely machined raceways paired with multi-layer sealing prevent dust, water and sediment intrusion. Effectively eliminate slewing turret shaking, jamming and abnormal noise, delivering far longer service life than ordinarybearings.
1.2 Special Bearings for Travel Mechanisms
Core Advantages: Manufactured from high-purity bearing steel with precision heat treatment for outstanding impact and heavy-load resistance. Upgraded reinforced sealing blocks infiltration of sediment and gravel. Greatly reduce abnormal travel noise and premature wear, cutting frequent replacement expenses.
1.3 Working Equipment Joint / Pin Shaft Bearings
Core Advantages: Low friction and excellent wear resistance, resolving excessive pin shaft clearance, operation jitter and insufficient digging power. Certain self-lubricating versions eliminate frequent greasing. Heat-resistant and extrusion-proof to prevent pin shaft seizing and looseness.
1.4 High-precision Bearings for Hydraulic Motors
Core Advantages: Designed for installation inside hydraulic pumps and various motors with tight dimensional tolerances. Stable operation and heat resistance avoid power loss, unstable pressure and abnormal noise, sustaining consistent output of the hydraulic system.
General Core Advantages of the Full Range
Strong adaptability to harsh conditions: Developed specifically for severe working environments with heavy-load resistance, impact resistance and sediment protection.
Stable and reliable quality: Premium raw materials, mature heat treatment and raceway grinding technology slow down wear and deformation.
Precise OEM compatibility: Fully compliant with original equipment dimensions for easy installation and proper clearance, avoiding secondary wear. Suitable for all mainstream excavator models.
Cost reduction & efficiency improvement: Extended service life and low failure rates cut downtime, repair and replacement costs and boost equipment working efficiency.
