Cylindrical Roller Bearings SKF NUP2222 ECP

SKF NUP2222 ECP cylindrical roller bearing: Single-row fixed bearing with a 110 mm bore, 200 mm outer diameter and a polyamide cage for high radial loads.

The SKF NUP2222 ECP cylindrical roller bearing, as a single-row roller bearing, can accommodate very high radial forces. Thanks to the modified internal design of the Explorer series, the component distributes any contact stresses evenly across the rollers and raceways. With two fixed flanges on the outer ring, one fixed flange on the inner ring and a loose flange disc, this design guides the shaft in both axial directions.

What is the NUP2222 ECP cylindrical roller bearing suitable for as a fixed bearing?

Bearing arrangements with shaft guidance on both sides utilise the NUP design for precise axial fixation. The component acts as a fixed bearing and, in addition to the primary radial forces, also absorbs axial guidance forces from varying directions. Common applications include industrial gearboxes and drive shafts with a defined axial stop function. The outer ring is designed without a groove or lubrication bore, meaning that the lubricant is supplied via the surrounding structure.

What are the advantages of the polyamide cage and the P6 running accuracy?

The integrated polyamide cage keeps the weight of the rolling element assembly low and reduces friction during operation. The operating temperature range for this application is -30 to +120 degrees. Of particular note is the graded manufacturing precision: whilst the dimensions are manufactured to standard tolerance P0 (ABEC 1), the running accuracy corresponds to the tighter P6 class (ABEC 3). This promotes smooth running at normal radial bearing clearance. As this is an open bearing without integrated seals, an external housing seal is used to protect against the ingress of dirt.