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1t-1278
CAT
1t-1278
The Roller Bearing is a compact, heavy-load component meticulously engineered for the rigorous demands of mining drilling rigs and heavy construction machinery. Designed to excel in confined installation spaces, this bearing combines a robust annular structure with precision-tapered rollers to provide exceptional axial and radial load capacity, ensuring the stable operation of equipment slewing and hydraulic systems.
Optimized Lightweight Design:
Weighing only 1.30 kilograms, this bearing is optimized for applications where weight reduction is critical without compromising strength. Its lightweight nature facilitates easier handling and installation while reducing inertial stress on rotating components, making it ideal for mobile mining equipment.
Premium Material & Precision Manufacturing:
Constructed entirely from premium bearing steel, every element undergoes a rigorous production process:
Race Rings: Forged for superior grain structure, CNC-machined for dimensional accuracy, and heat-treated to achieve high surface hardness (HRC 58-62) and core toughness.
Tapered Rollers: Cold-headed for density and precision-ground to ensure perfect geometry and surface finish.
This meticulous craftsmanship guarantees superior durability and resistance to pitting under extreme pressure.
Exceptional Load Capacity & Rigidity:
The tapered geometry allows the rollers to carry both heavy axial (thrust) loads and radial loads simultaneously. This design provides high rigidity, preventing elastic deformation of the machinery during heavy lifting or drilling operations. It effectively manages the combined stresses found in gearboxes and swing drives.
Stamped Steel Cage Stability:
Featuring a robust stamped steel cage, the rollers are securely guided and evenly spaced. This cage design offers excellent strength-to-weight ratio and ensures smooth, low-noise rotation even under high-vibration conditions typical of mining drill rigs.
Built for Harsh Environments:
The precision-machined surface finish ensures superior wear resistance against abrasive dust and contaminants. It maintains reliable performance in dusty, high-impact environments, serving as a critical spare part for minimizing unexpected downtime and extending the service life of heavy equipment.
Parameter | Specification |
|---|---|
Series/Model | NW Series (1.30kg Unit Weight Class) |
Bearing Type | Single Row Tapered Roller Bearing |
Material | Premium Bearing Steel (GCr15 / AISI 52100) |
Weight | 1.30 kg |
Load Direction | Combined Radial & Axial (Thrust) |
Cage Material | Stamped Steel |
Hardness | HRC 58-62 (Raceways & Rollers) |
Mining Drill Rigs: Slewing drives, feed table supports, and gearbox countershafts.
Construction Machinery: Excavator travel motors, swing reducers, and crane boom pivots.
Hydraulic Systems: Supporting shafts in heavy-duty hydraulic pumps and motors.
Industrial Gearboxes: Transmissions requiring high rigidity in a compact form factor.
Manufactured under strict quality control protocols, each NW series bearing is inspected for dimensional accuracy, runout, and surface integrity. It is designed as a direct-fit replacement part, ensuring seamless integration and reliable performance in your heavy machinery.
Installation Recommendation:
To maximize service life, ensure the shaft and housing seats are clean and precisely aligned. Apply high-quality EP (Extreme Pressure) grease during installation. Avoid striking the bearing directly; use a proper press-fitting tool to ensure even seating.
