NSK 6211-2RS/C3 Rubber Sealed Single Row Deep Groove Ball Bearing 55x100x21mm

The NSK 6211-2RS-C3 is a premium single-row deep groove ball bearing with dimensions of 55mm bore x 100mm outside diameter x 21mm width, engineered for demanding applications requiring both superior contamination protection and enhanced thermal clearance. Manufactured to NSK's stringent Japanese quality standards, this bearing features integral contact rubber seals on both sides (2RS) that provide an effective barrier against moisture, dust, dirt, and abrasive particles while securely retaining the factory-applied grease for extended maintenance-free operation. The C3 radial internal clearance accommodates thermal expansion during high-speed operation, preventing unwanted preload and ensuring consistent performance under fluctuating temperatures. With a dynamic load rating of 47.5 kN and a static load rating of 29.3 kN, this sealed bearing supports both radial and axial loads in either direction with minimal friction, delivering reliable, low-vibration performance at grease lubrication speeds up to 4,800 rpm. Featuring a pressed steel cage and ten precision-ground 14.288mm balls, the NSK 6211-2RS-C3 offers exceptional durability, extended lubrication intervals, and consistent operation across a wide temperature range. This bearing is ideally suited for electric motors, pumps, compressors, gearboxes, agricultural machinery, construction equipment, and conveyor systems where both environmental exposure and thermal variation are concerns. For engineers and maintenance professionals seeking a durable, fit-and-forget solution in challenging operating conditions, the NSK 6211-2RS-C3 delivers uncompromising reliability and extended service life.