Cylindrical Roller Bearings SKF NJ215 ECP

The SKF NJ215 ECP cylindrical roller bearing, measuring 75x130x25 mm, offers high radial load-carrying capacity and axial guidance in one direction.

The NJ215 ECP cylindrical roller bearing is an open, single-row roller bearing in the Explorer design with an optimised internal structure. Thanks to the line contact between the rollers and raceways, this design can accommodate very high radial loads. The integrated polyamide cage guides the rolling elements with low vibration and low friction. With a bore of 75 mm, an outside diameter of 130 mm and a width of 25 mm, this bearing is suitable for demanding industrial applications in mechanical engineering.

What functions does the NJ215 ECP cylindrical roller bearing fulfil?

As a support bearing, this design accommodates not only high radial forces but also axial forces from one direction. In the opposite direction, the bearing allows for axial displacement, thereby compensating for changes in shaft length caused by thermal effects without inducing stress. Typical applications include shaft mountings with single-sided axial guidance and high radial loads. As the outer ring has no groove or lubrication bore, the lubricant is supplied via the adjacent structure of the bearing housing.

What features do the NJ design and the polyamide cage offer?

In the NJ design, the outer ring has two fixed flanges, whilst the inner ring has one flange and is removable from one side. This ability to be dismantled facilitates assembly and maintenance. The lightweight polyamide cage performs well under rapid acceleration and covers an operating temperature range from -30 to +120 degrees. With standard radial bearing clearance and increased running accuracy to tolerance class P6, the design ensures smooth and precise guidance of the rotating shaft.