Cylindrical Roller Bearings FAG NU307 -E-XL-M1-C3

The FAG NU307 -E-XL-M1-C3 cylindrical roller bearing, with a 35 mm bore and a brass cage, offers a free-running bearing solution for high radial loads.

This single-row cylindrical roller bearing, the NU307 -E-XL-M1-C3, is designed primarily to withstand high radial loads thanks to the line contact of its rolling elements. The open design without sealing washers allows it to be used in oil- or grease-lubricated systems. With main dimensions of 35 mm inner diameter, 80 mm outer diameter and 21 mm width, this version complies with tolerance class P0/PN or ABEC 1. The component covers an operating temperature range from -30 to +150 degrees.

What is the NU307 -E-XL-M1-C3 cylindrical roller bearing suitable for?

This design is primarily used in shaft mountings where high radial forces occur. As a non-locating bearing of the NU design, the outer ring has two fixed flanges, whilst the inner ring is flangeless and removable from both sides. This allows the bearing to compensate for axial length changes of the shaft relative to the housing without any binding. The solid brass cage guides the rollers stably within the raceways, even under severe vibrations or abrupt changes in speed.

What advantages do the brass cage and C3 clearance offer with this bearing?

The combination of a brass cage and increased bearing clearance is designed for thermally and mechanically demanding operating conditions. The designation C3 indicates a slightly increased radial clearance in the initial state. If the shaft and bearing rings heat up during operation, or if tight fits reduce the radial clearance, this additional clearance helps to prevent the rolling elements from becoming stressed. Compared with plastic versions, the brass cage is characterised by its dimensional stability and resistance to lubricants and operating temperatures of up to +150 degrees.