Cylindrical Roller Bearings FAG NU322 -E-XL-TVP2-C3

The designation C3 indicates a slightly increased radial bearing clearance compared with the standard version. This additional radial clearance compensates for thermal expansion when temperature differences occur between the shaft and the housing during operation. Similarly, the C3 clearance prevents the operating clearance from becoming too tight in the case of tight fits, thereby reducing the load on the rolling elements.

The suffix TVP2 denotes a polyamide cage. This material is characterised by its low weight and favourable sliding properties in relation to the rollers. The cage guides the cylindrical rolling elements and contributes to quiet operation. When designing the bearing, the maximum permissible temperature of 120 degrees must be taken into account.

The NU322 -E-XL-TVP2-C3 cylindrical roller bearing has a bore of 110 mm, an outer diameter of 240 mm and a width of 50 mm. It is a single-row bearing without a groove or lubrication bore in the outer ring. It is manufactured to standard precision in accordance with tolerance class P0/PN or ABEC 1. The bearing does not have integrated electrical insulation.

As an open bearing, the cylindrical roller bearing has no integrated seals or cover plates. Grease or lubricating oil must be supplied via the housing design, which also provides protection against dirt and moisture. The open design allows for a free choice of suitable lubricant and enables relubrication as part of regular maintenance.

The bearing is designed for a temperature range of -30 to +120 degrees. The upper temperature limit is largely determined by the polyamide cage used. At consistently higher operating temperatures, the dimensional stability and strength of the cage material may deteriorate. To ensure safe operation, the lubricant used must also be suitable for the relevant operating temperatures.