Cylindrical Roller Bearings SKF NJ205 ECP/C3

The SKF NJ205 ECP/C3 cylindrical roller bearing offers high radial load-carrying capacity with a 25 mm bore, a polyamide cage and increased C3 clearance for demanding industrial applications.

The SKF NJ205 ECP/C3 single-row cylindrical roller bearing is an open roller bearing designed primarily to withstand high radial loads. With key dimensions of a 25 mm bore, 52 mm outside diameter and 15 mm width, it is suitable for compact shaft mountings in mechanical engineering. Thanks to the optimised internal design, the cylindrical rollers run with low friction on the ground raceways. Designed as an open type, external lubricant reaches the rolling elements directly.

What is the NJ205 ECP/C3 cylindrical roller bearing suitable for in operation?

Its use is recommended where bearing arrangements are subjected to high radial loads and axial displacements in one direction need to be supported. As a support bearing, the NJ design features two fixed flanges on the outer ring and one fixed flange on the inner ring. The design accommodates axial forces on one side, whilst allowing free compensation for thermal expansion in the opposite direction. The inner ring can be removed from one side.

What do the polyamide cage and the C3 clearance mean for assembly?

The suffixes provide information on the cage material and bearing clearance. The abbreviation ECP denotes a lightweight polyamide cage which guides the rollers quietly and is designed for operating temperatures from –30 to +120 degrees. The designation C3 indicates a slightly increased radial bearing clearance. This additional clearance compensates for fit oversizes and operational heating, ensuring that the rolling elements roll freely during operation.