Cylindrical Roller Bearings SKF NU305 ECP

The SKF NU305 ECP cylindrical roller bearing, with a 25 mm bore and an outer diameter of 62 mm, provides a high-load-capacity idler bearing for radial forces.

The NU305 ECP cylindrical roller bearing is a single-row radial roller bearing in the SKF Explorer design with an optimised internal structure. Designed as a conventional non-locating bearing, the NU design features two fixed flanges on the outer ring, whilst the inner ring is flangeless. This design allows for axial displacement of the shaft relative to the housing directly within the bearing. With key dimensions of 25 mm inner diameter and 62 mm outer diameter, and a width of 17 mm, this open roller bearing is suitable for industrial applications involving high radial loads.

What is the NU305 ECP cylindrical roller bearing suitable for in operation?

This non-locating bearing accommodates radial loads exclusively and compensates for heat-induced changes in shaft length without restriction. The inner ring, which can be removed from both sides, facilitates assembly and maintenance when the rings are fitted separately. Typical applications include shaft mountings where precise radial guidance without axial restraint is required. Manufactured to dimensional accuracy P0/PN (ABEC 1) and with increased running accuracy P6 (ABEC 3), the design ensures smooth running.

What advantages does the polyamide cage in this design offer?

The integrated polyamide cage is characterised by its low weight and favourable friction properties. This makes the design suitable for dynamic loads and high-acceleration drives. When designing the bearing, the permissible temperature range of -30 to +120 degrees must be taken into account, as this is determined by the cage material. As this is an unsealed bearing without a lubrication bore in the outer ring, the lubricant is supplied via the housing design.