Cylindrical Roller Bearings FAG NUP305 -E-XL-M1-C3

The FAG NUP305 -E-XL-M1-C3 cylindrical roller bearing, with dimensions of 25 × 62 × 17 mm, functions as a single-row fixed bearing with a brass cage and increased C3 clearance.

As a single-row roller bearing, the NUP305 -E-XL-M1-C3 absorbs significant radial forces. In the NUP version, the component guides the shaft axially in both directions, as it features two fixed flanges on the outer ring and one fixed flange and one loose flange disc on the inner ring. Consequently, this variant functions as a fully-fledged fixed bearing. As an open bearing without integrated seals, it is designed to be lubricated via the housing or the machine’s lubrication circuit.

What is the NUP305 -E-XL-M1-C3 cylindrical roller bearing suitable for?

This design is used in bearing arrangements where high radial forces are present and the shaft needs to be guided axially in both directions. The solid brass cage is suitable for demanding operating conditions involving vibrations and dynamic acceleration forces. Thanks to the open design without sealing washers, the lubricant from the surrounding structure reaches the raceways and rolling elements unhindered.

What functions do the brass cage and C3 bearing clearance fulfil in this bearing?

The increased radial clearance (C3) provides the rolling element set with greater radial freedom prior to assembly. This helps to prevent the rollers from jamming if fits cause the inner ring to expand or if temperature differences arise between the shaft and the housing. The brass cage guides the cylindrical rollers securely along their raceways. The specified operating temperature range for this cylindrical roller bearing is from -30 to +150 degrees Celsius.