Cylindrical Roller Bearings FAG NU312 -E-M1

The FAG NU312 -E-M1 cylindrical roller bearing, with its main dimensions of 60 × 130 × 31 mm and its robust brass cage, can withstand high radial loads.

This single-row cylindrical roller bearing NU312 -E-M1 from FAG is specifically designed to accommodate high radial forces. Thanks to the line contact between the cylindrical rolling elements and the raceways, this bearing design offers a high radial load-carrying capacity. With a bore of 60 mm, an outer diameter of 130 mm and a width of 31 mm, the roller bearing is of an open design. The absence of integrated seals, as well as the lack of a groove or lubrication bore in the outer ring, necessitates a lubricant supply via the surrounding structure.

In which bearing arrangements is the NU312 -E-M1 cylindrical roller bearing used as a non-locating bearing?

The NU design serves as a classic non-locating bearing in bearing arrangements where purely radial forces must be supported and axial length changes compensated for. The outer ring has two fixed flanges, whilst the inner ring is flangeless. This design allows the inner and outer rings to shift axially relative to one another during operation. This prevents the build-up of internal axial stresses caused by thermal expansion of the shaft. The permissible temperature range extends from -30 to +150 degrees and covers a wide variety of industrial environmental conditions.

What are the distinctive features of the M1 brass cage in the NU312 -E-M1 cylindrical roller bearing?

The solid brass cage, designated M1, guides the cylindrical rollers securely and withstands heavy shock loads, vibrations and rapid acceleration. A key practical advantage of this NU design is that it can be completely dismantled: The inner ring can be removed from both ends, allowing the inner and outer rings to be mounted separately onto the shaft and housing. With standard radial clearance and tolerance class P0/PN or ABEC 1, this precision component fits into standardised seating.