Cylindrical Roller Bearings SKF NU219 ECP

The SKF NU219 ECP cylindrical roller bearing, measuring 95x170x32 mm, offers high radial load-carrying capacity as a separable idler bearing with a polyamide cage.

The single-row NU219 ECP cylindrical roller bearing from SKF, as a radial non-locating bearing, withstands high radial loads and compensates for axial length changes in the shaft within the bearing. With dimensions of 95 mm bore, 170 mm outside diameter and 32 mm width, the unshielded version is used in oil- or grease-lubricated systems. The Explorer version features an optimised internal design, whilst the polyamide cage ensures smooth guidance of the cylindrical rollers.

What is the NU219 ECP cylindrical roller bearing suitable for in industrial plant?

This rolling bearing is particularly recommended for bearing arrangements subject to purely radial forces, where thermal linear expansion of the shaft occurs. Thanks to the NU design, which has no flanges on the inner ring, the shaft moves axially relative to the housing without constraint. Typical applications include shaft mountings where purely radial forces are acting and rigid bearing arrangements would generate undesirable stresses. As the bearing is of an open design, the surrounding structure must provide suitable external sealing and a lubricant supply.

What advantages do the polyamide cage and removable inner ring offer during installation?

The NU design allows the inner ring and outer ring to be fitted separately from the roller set. This facilitates installation and removal work on shaft ends that are difficult to access and simplifies maintenance procedures. The polyamide cage, due to its low weight, reduces inertial forces and operates quietly within the permissible temperature range of -30 to +120 degrees. The manufacturing specifications comply with dimensional accuracy class P0 or ABEC 1 and running accuracy class P6 or ABEC 3 with standard radial bearing clearance.