Cylindrical Roller Bearings FAG NJ306 -E-XL-M1A-C3

The FAG cylindrical roller bearing NJ306 -E-XL-M1A-C3 can withstand high radial loads with a 30 mm bore, 72 mm outer diameter and 19 mm width.

The FAG NJ306 -E-XL-M1A-C3 cylindrical roller bearing is designed as a single-row radial roller bearing. Thanks to the modified line contact of the cylindrical rollers, the design can withstand high radial forces. As an open version without an integrated seal, the bearing operates in externally lubricated housings and is suitable for a temperature range of -30 to +150 degrees.

What is the NJ306 -E-XL-M1A-C3 cylindrical roller bearing suitable for as a support bearing?

This design is specifically intended for use as a support bearing. The outer ring has two fixed flanges, whilst the inner ring has a single flange and remains removable from one side. As a result, the component accommodates not only predominant radial forces but also axial guidance forces from one direction. In the opposite direction, the bearing arrangement allows for a defined axial displacement, which compensates for changes in shaft length due to thermal expansion. Typical applications include shaft mountings where axial guidance in one direction is combined with thermal length compensation.

What are the functions of the M1A brass cage and the C3 clearance?

The solid brass cage, which is guided on the outside, guides the rollers stably against the outer ring at high speeds and under vibration loads. The radially increased bearing clearance of the C3 group provides the necessary compensation space when temperature differences occur between the inner and outer rings or when fixed bearing seats reduce the radial operating clearance. Together with tolerance class P0 (ABEC 1), this design is suitable for demanding installation conditions in mechanical engineering.