ZWWZ Brand Single Row Cylindrical Roller Bearings NU NN NJ NUP38/630

Premium Material & Precision Engineering
Crafted from high-grade alloy steel with ultra-smooth grinding, ensuring superior load capacity and wear resistance. Hardened rollers and raceways for extended durability under heavy radial loads.
Industrial-Grade Performance
Designed for extreme conditions—handles high-speed rotations (up to 1,500 RPM) and radial forces in heavy machinery like mining equipment, paper mills, and wind turbines.
Optimized Design for Versatility
Interchangeable NU/NN/NJ/NUP38-630 models for flexible mounting in gearboxes, pumps, or conveyor systems. Sealed variants available for dust-heavy environments.
Global Bulk Supply Advantage
Direct factory pricing, no middlemen. Customizable quantities with OEM packaging. Ships worldwide with guaranteed lowest wholesale rates.
Key Specs
Dimensions: 630mm (ID) x 780mm (OD) x 112mm (Width). Dynamic load rating: 5,800 kN. Tolerance level: ISO P6.