Cylindrical Roller Bearings SKF NJ2317 ECP

The SKF NJ2317 ECP single-row cylindrical roller bearing, with main dimensions of 85 × 180 × 60 mm, accommodates high radial forces as well as unilateral axial loads.

The SKF NJ2317 ECP cylindrical roller bearing is designed as an open, single-row roller bearing with a bore diameter of 85 mm, an outer diameter of 180 mm and a width of 60 mm. This model belongs to the SKF Explorer class and features an optimised internal design. In the NJ design, the component functions as a support bearing to accommodate heavy radial forces and provide single-direction axial guidance. Thanks to the inner ring, which can be removed from one side, the bearing can be fitted separately onto the shaft and into the housing.

What is the NJ2317 ECP cylindrical roller bearing suitable for as a support bearing?

This cylindrical roller bearing is suitable for bearing arrangements with predominantly radial load-carrying capacity, where axial forces also act in one direction. The single-sided flange on the inner ring allows this design to accommodate axial compensatory movements in the opposite direction. This accommodates temperature-induced changes in the shaft’s length without causing axial stress in the rolling bearing.

What are the distinctive features of the version with a polyamide cage?

The suffix ECP stands for the combination of an optimised internal design and a polyamide cage. The material reduces the weight of the rotating parts and ensures smooth operation at temperatures between –30 and +120 degrees. The bearing is manufactured with standard radial clearance, dimensional accuracy to P0 or ABEC 1, and running accuracy to P6 or ABEC 3. As the outer ring has no lubrication groove and there is no integrated seal, lubricant is supplied externally via the mounting point.