Cylindrical Roller Bearings SKF NJ2210 ECJ

The SKF NJ2210 ECJ cylindrical roller bearing, measuring 50x90x23 mm, offers a high-load-capacity solution for radial loads with single-sided axial guidance.

The single-row cylindrical roller bearing NJ2210 ECJ, as a radial roller bearing, withstands high forces at moderate speeds. Thanks to the modified line contact between the rollers and raceways, this design distributes stress peaks evenly. With a bore of 50 mm, an outer diameter of 90 mm and a width of 23 mm, this version – featuring an optimised internal design – is suitable for industrial applications. The integrated sheet steel cage guides the rollers and keeps friction resistance low.

What is the NJ2210 ECJ cylindrical roller bearing suitable for in operation?

Typical applications include bearing arrangements subject to high radial loads and unilateral axial guidance forces in general mechanical engineering. The NJ2210 ECJ cylindrical roller bearing acts as a support bearing in this context: the outer ring has two fixed flanges, whilst the inner ring has one fixed flange. As a result, the bearing arrangement absorbs primary radial loads and also guides the shaft in an axial direction. In the opposite direction, the bearing compensates for axial length changes without restriction.

What are the advantages of the NJ design with its optimised construction?

The NJ design allows for straightforward installation, as the inner ring can be removed from one side. Fitters can mount the inner and outer rings separately onto the shaft and housing. The EC designation refers to the optimised internal geometry for roller guidance and lubricant film formation. As an open bearing without an integrated seal, this model utilises lubrication from the surrounding system and withstands operating temperatures ranging from –30 to +150 degrees Celsius.