Cylindrical Roller Bearings FAG RNU203 -E-XL-TVP2

The FAG RNU203 -E-XL-TVP2 cylindrical roller bearing is designed for high radial loads in compact installations, with a pitch circle diameter of 22.1 mm, an outside diameter of 40 mm and a width of 12 mm.

The FAG RNU203 -E-XL-TVP2 cylindrical roller bearing is a single-row roller bearing without an inner ring, specifically designed for space-saving applications. The cylindrical rollers run directly on a hardened and ground shaft. Due to the line contact between the rollers and the raceway, this design can withstand high radial loads. The design complies with the standard tolerance class P0/PN (ABEC 1) and covers an operating temperature range from –30 to +120 degrees.

What is the RNU203 -E-XL-TVP2 cylindrical roller bearing suitable for?

This cylindrical roller bearing is suitable for industrial bearing arrangements where there is limited installation space in the radial direction. As no separate inner ring is fitted, the shaft diameter can be maximised, which increases the stiffness of the entire shaft. The design typically functions as a floating bearing, allowing axial length changes in the shaft due to heating to be compensated for freely within the bearing assembly.

What are the special features of the design without an inner ring?

The RNU design does not include an inner ring, so the shaft journal itself serves as the raceway. To ensure low-wear operation, the shaft raceway must be hardened and precision-machined. The integrated TVP2 polyamide cage guides the rolling elements with low vibration and is characterised by its low weight. As this is an open bearing without an integrated seal, provision must be made for lubricant supply via the housing and for external sealing of the bearing housing.