Cylindrical Roller Bearings SKF NU2215 ECP

The SKF NU2215 ECP cylindrical roller bearing, with dimensions of 75x130x31 mm, is designed as a separable idler bearing for high radial loads.

This single-row NU2215 ECP cylindrical roller bearing from SKF, as an open rolling bearing, accommodates purely radial forces. The design complies with the SKF Explorer performance class and features an optimised internal design. As the outer ring has solid flanges and the inner ring is flangeless, the bearing compensates for axial length changes in the shaft directly within the bearing with low friction. It is suitable for operating temperatures ranging from –30 to +120 degrees Celsius.

What is the NU2215 ECP cylindrical roller bearing suitable for in operation?

Typical applications include rotating machinery subject to significant radial loads, where thermal length changes in the shaft must be accommodated. The NU design is specifically used at the free end of shaft support arrangements. If temperature differences and thermal expansion occur during operation, the flangeless inner ring shifts axially relative to the roller set in the outer ring. This prevents harmful axial stresses in the entire bearing assembly and relieves the fixed end.

What are the functions of the NU design and the polyamide cage in this bearing?

The inner ring, which can be removed from both sides, makes assembly and disassembly considerably easier, as both rings can be fitted separately onto the shaft and housing. The suffix ECP denotes the combination of optimised internal geometry and a polyamide cage. This cage guides the rollers quietly whilst being lightweight. Thanks to the standard radial clearance and the increased running accuracy to P6 or ABEC 3, the roller bearing runs smoothly and with low vibration.