INA Bearings RNA4903-2RSR-XL Needle Roller Bearing

The RNA4903-2RSR-XL is a machined radial needle roller bearing from Schaeffler (INA) designed for high load transfer in compact equipment, combining a precision needle roller array with robust lip seals on both sides to guard against contamination and lubricant leakage. This XL variant carries a 22 mm bore, a 30 mm outside diameter, and a 13 mm wide footprint, and it is specified as RNA4903-2RSR-XL, indicating extended length within the RNA49 series and double-sided sealing (2RSR) for enhanced environmental protection. The double lip seals on both faces help maintain lubrication in challenging operating environments and reduce ingress of dust and moisture, making it well-suited for sealed gearboxes, actuators, robotics modules, and other compact assemblies where space is at a premium. For procurement, note the critical dimensions 22 x 30 x 13 (bore x outer diameter x width) and the INA/Schaeffler branding, ensuring compatibility with other RNA49..-2RSR-XL bearings in related machine designs.