Cylindrical Roller Bearings SKF NJ207 ECJ

The SKF NJ207 ECJ cylindrical roller bearing, measuring 35x72x17 mm, offers high radial load-carrying capacity and axial guidance in one direction.

The NJ207 ECJ cylindrical roller bearing is a single-row rolling bearing with an optimised internal design for demanding industrial applications. The open bearing has a bore of 35 mm, an outside diameter of 72 mm and a width of 17 mm. Thanks to the line contact of the cylindrical rollers, this SKF design can withstand particularly high radial loads. Maintenance engineers and original equipment manufacturers specifically use this design for applications where, in addition to high transverse forces, axial guidance forces in one direction are also present.

In which applications does the NJ207 ECJ design prove its worth?

As a support bearing, the bearing guides the shaft axially in one direction whilst allowing displacement in the opposite direction. Typical applications include industrial drives and rotating shaft guides subject to high radial loads. The open cylindrical roller bearing operates within a temperature range of -30 to +150 degrees. As the outer ring has no groove or lubrication bore, grease or oil is supplied directly via the machine’s housing system.

What are the advantages of the sheet steel cage and the NJ design?

The NJ design is characterised by two fixed flanges on the outer ring and one fixed flange on the inner ring. This allows the inner ring to be removed from one side, which facilitates the separate assembly of the shaft and housing. The integrated sheet steel cage guides the rolling elements at normal radial bearing clearance. Thanks to the increased running accuracy to tolerance class P6 or ABEC 3 with standard dimensional accuracy P0, the bearing ensures smooth running in precisely guided drive shafts.