Brand: NTN
NTN R 20 ZZ Inch Series Deep Groove Ball Bearing | 1-1/4" Bore Double Shielded
The R 20 ZZ industrial ball bearing is a premium component engineered for demanding inch-series applications. Featuring a 1.250-inch bore and 2.500-inch outer diameter, this Deep Groove Ball Bearing (DGBB) adheres strictly to established inch-series dimensional standards, making it ideal for machinery where metric conversions are impractical. The 'ZZ' designation confirms the presence of dual non-contact metallic shields, ensuring superior retention of the factory-applied grease while effectively protecting the internal raceways and rolling elements from dust, debris, and contamination. Constructed from high-quality bearing steel (52100 standard), the R 20 ZZ provides exceptional radial and moderate axial load capacity and is suitable for high rotational speeds found in electrical motors, blowers, and pumps. This precision manufacturing standard, synonymous with NTN reliability, guarantees low noise output and stable temperature operation.
Selecting the R 20 ZZ (or its specific variant 2 AS 162102) guarantees extended operational lifecycles and significantly reduced maintenance downtime in heavy industrial and agricultural settings. Its robust shielded design makes it a zero-maintenance component in environments with moderate contamination levels, eliminating the need for periodic relubrication. This bearing is the go-to solution for product managers seeking to standardize equipment repairs using reliable, high-performing inch-series components. Leverage the precision engineering of this double-shielded bearing to maximize the efficiency and durability of conveyor systems, transmission applications, and precision shaft supports where longevity is paramount.
Key Features
Inch-Series Standard: Perfect for direct replacement in existing US and UK machinery requiring 1.250-inch bore sizing.
Double Metallic Shields (ZZ): Provides permanent lubrication retention and excellent protection against non-liquid contaminants.
High Load Capacity: Optimized geometry handles significant combined radial and moderate axial loads common in power transmission.
Precision Engineered Raceway: Ensures reduced friction torque, lower operating temperatures, and extended service life.
Pre-Lubricated: Filled with high-quality lithium complex grease suitable for a wide range of industrial operating temperatures.
