Cylindrical Roller Bearings SKF NU2207 ECP/C3

The SKF NU2207 ECP/C3 cylindrical roller bearing combines dimensions of 35x72x23 mm with increased C3 clearance and a removable inner ring for heavily loaded loose bearing arrangements.

The single-row cylindrical roller bearing NU2207 ECP/C3 from SKF, as an open radial roller bearing, can accommodate very high radial forces. Thanks to its optimised internal design, this bearing type distributes radial shock loads evenly across the roller raceway. With a bore of 35 mm, an outside diameter of 72 mm and a width of 23 mm, this rolling bearing is primarily used as a sliding support bearing in mechanical drives and shaft guides.

In which applications is the NU2207 ECP/C3 cylindrical roller bearing used?

This cylindrical roller bearing is designed for bearing arrangements that must exclusively support radial loads and compensate for thermal linear expansion of the shaft. As the inner ring can be removed from both ends, the shaft can be displaced axially relative to the housing whilst the bearing is in operation. Typical applications include shaft mountings subject to high dynamic radial forces and temperature-induced axial displacement. The integrated polyamide cage guides the cylindrical rollers with low friction within a temperature range of –30 to +120 degrees Celsius.

What advantages do the polyamide cage and C3 clearance offer in the NU2207?

The suffixes ECP and C3 denote specific features for demanding operating environments. The lightweight polyamide cage reduces the moment of inertia of the rolling elements, which lowers energy consumption and promotes low-vibration operation. At the same time, the slightly increased radial clearance of Group C3 compensates for operating-related temperature differences between the inner and outer rings. This ensures that sufficient operating clearance is maintained even under full thermal operating load or with tight fits. As the bearing is unsealed, the bearing housing requires external sealing and a lubricant supply.