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1298171
CAT
1298171
This product is a core rotating component engineered for excavators, loaders, and various other heavy construction machinery. Manufactured from forged alloy steel and featuring a polished raceway with oxidation blackening anti-corrosion treatment, it is designed to deliver exceptional load-bearing capacity and an extended service life in extreme heavy-duty and harsh operating conditions.
Forged Steel Construction – Tough Core:
Unlike standard cast or turned bearings, the bearing rings are forged from alloy steel. This process optimizes the internal metallographic structure, eliminating porosity and inclusions while ensuring continuous grain flow. This results in superior core toughness and impact resistance, allowing the bearing to withstand the massive instantaneous shock loads generated during excavation and breaking operations.
Precision Polished Raceway:
The raceway surface undergoes precision polishing, which significantly reduces surface roughness and friction between the rolling elements and the raceway. This not only ensures smoother and quieter equipment operation but also dramatically improves contact fatigue life by eliminating stress concentration points and preventing early-stage pitting.
Oxidation Blackening Treatment:
The surface is treated with oxidation blackening technology, forming a dense layer of magnetite (Fe₃O₄). This coating enhances corrosion resistance, allowing the bearing to adapt to humid, dusty outdoor environments, while also increasing surface hardness for added wear resistance.
Exceptional Wear Resistance & Long Service Life:
Combining premium alloy steel with advanced heat treatment processes, the raceway surface achieves high hardness (HRC 60+) while maintaining a tough core. This "hard shell, tough core" characteristic ensures the bearing resists deformation and wear during long-term heavy-load operation, significantly extending equipment life and reducing downtime.
Wide Compatibility & Customization:
Designed to standard specifications, this bearing is perfectly compatible with excavators, loaders, and other heavy machinery from major brands. Additionally, we offer customization services to produce bearings with special dimensions, structures, or internal clearances based on your specific equipment requirements.
Parameter | Specification |
|---|---|
Product Type | Rolling Bearing (Deep Groove Ball / Taper Roller / Spherical Roller) |
Material | Premium Alloy Steel (Forged) |
Surface Treatment | Oxidation Blackening |
Key Feature | Polished Raceway |
Hardness | HRC 60-64 (Raceway Surface) |
Compatible Equipment | Excavators, Loaders, Bulldozers, Cranes |
Excavators: Slew rings (turntables), travel motor reducers, and boom cylinder pin supports.
Loaders: Transmission shaft supports, drive axle hub bearings, and bucket linkage pivot points.
Mining Machinery: Crusher main shafts, vibrating screen exciters.
Industrial Equipment: Heavy-duty conveyor rollers, large gearboxes.
We strictly adhere to the ISO quality management system throughout production and inspection. Every bearing undergoes rigorous testing for dimensional accuracy, rotational flexibility, and noise levels before leaving the factory. This ensures that every product delivered offers excellent performance and reliability, supporting the continuous and stable operation of your equipment.
Installation Recommendation:
To ensure optimal performance, thoroughly clean the shaft journal and housing bore before installation. Due to the precision-polished raceway, please use dedicated tools for press-fitting and avoid striking the bearing faces directly to prevent damage to the precision surfaces.
