Cylindrical Roller Bearings SKF NJ305 ECP

The SKF NJ305 ECP cylindrical roller bearing offers high radial load capacity with a 25 mm bore, 62 mm outer diameter and 17 mm width.

The NJ305 ECP cylindrical roller bearing is a single-row roller bearing belonging to SKF’s Explorer performance class. Thanks to the line contact between the rollers and the raceway, the design can accommodate high radial loads. This model is an open bearing without an integrated seal. This allows lubricants to reach the contact surfaces unhindered, whilst the polyamide cage guides the rollers. The optimised internal design supports even load distribution during operation.

What is the NJ305 ECP cylindrical roller bearing suitable for as a support bearing?

The bearing is primarily used as a support bearing in industrial shaft mountings where high radial forces occur. The NJ design features two fixed flanges on the outer ring and one fixed flange on the inner ring. This allows the bearing to lock a shaft axially in one direction, whilst permitting axial displacement in the opposite direction. Typical applications include mechanical engineering bearing arrangements operating at temperatures ranging from -30 to +120 degrees.

What are the distinctive features of the NJ design and the polyamide cage?

The combination of a split design and the choice of material facilitates installation and operation. As the inner ring can be removed from one side, the bearing rings are fitted separately onto the shaft and housing. The integrated polyamide cage is characterised by its low weight and runs with minimal vibration. In terms of precision, this design combines dimensional accuracy to P0 or ABEC 1 with higher running accuracy to Class P6 or ABEC 3.