Cylindrical Roller Bearings SKF NUP312 ECP

The SKF NUP312 ECP single-row cylindrical roller bearing combines a 60 mm bore with a fixed-house function for high radial load-carrying capacity and axial guidance applications.

This single-row roller bearing features an optimised internal design in the SKF Explorer series and combines compact dimensions with high radial load capacity. With dimensions of 60 mm bore, 130 mm outside diameter and 31 mm width, the NUP design guides shafts axially in both directions. As an open bearing with standard radial clearance, the bearing unit can be integrated directly into an existing lubrication system.

What loads can the NUP312 ECP cylindrical roller bearing accommodate?

The NUP312 ECP fixed bearing is designed to guide shafts under heavy radial loads, whilst the flanges on both the inner and outer rings accommodate limited axial forces on both sides. The design is suitable for bearing arrangements subject to combined loads consisting predominantly of radial forces and axial fixation. The polyamide cage used reduces friction and noise at varying speeds, whilst the permissible temperature range of –30 to +120 degrees enables reliable operation in industrial environments.

What are the distinctive features of the NUP design and the polyamide cage?

The NUP design features two fixed flanges on the outer ring, one fixed flange on the inner ring and a loose flange disc. This arrangement guides the shaft in both axial directions whilst also simplifying the separate assembly of both bearing rings. When designing the application, the open design without a seal must be taken into account, as this requires a suitable housing seal. Thanks to the combination of dimensional accuracy P0 (ABEC 1) and increased running accuracy P6 (ABEC 3), the bearing operates with low vibration even under demanding conditions.