Cylindrical Roller Bearings SKF NJ2205 ECP/C3

The SKF NJ2205 ECP/C3 cylindrical roller bearing is a single-row support bearing measuring 25x52x18 mm, designed to accommodate high radial forces and single-sided axial loads.

The NJ2205 ECP/C3 cylindrical roller bearing belongs to the NJ series and is designed as a support bearing. The outer ring has two fixed flanges, whilst the inner ring has one fixed flange and is removable on one side. This design enables the bearing to accommodate radial forces as well as axial loads from one direction. An optimised internal design and the lightweight polyamide cage ensure smooth running within an operating temperature range of -30 to +120 degrees.

In which installation situations is the NJ2205 ECP/C3 support bearing used?

This bearing is fitted at shaft positions that carry high radial forces whilst simultaneously requiring axial guidance in one direction. Thanks to its separable design with an inner ring that can be removed from one side, both bearing rings can be fitted separately onto the shaft and housing. Typical applications include shaft mountings subject to thermal linear expansion or unilateral thrust forces. As an open design, the component requires an external lubricant supply.

What are the advantages of a polyamide cage and C3 clearance?

The ECP design features a polyamide cage, which reduces the weight of the rolling element assembly and responds elastically to load peaks. In combination with the increased radial clearance (C3), the bearing compensates for operational heating and fit oversizes without premature seizing. In terms of dimensional accuracy, the design meets tolerance class P0 (ABEC 1), whilst the running accuracy corresponds to the tighter class P6 (ABEC 3).