Cylindrical Roller Bearings SKF NJ2214 ECP

The SKF NJ2214 ECP cylindrical roller bearing, measuring 70x125x31 mm, offers high radial load-carrying capacity and acts as a support bearing with axial guidance.

The NJ2214 ECP cylindrical roller bearing is a single-row radial roller bearing from the SKF Explorer range with an optimised internal design. This open bearing features an outer ring without a lubrication bore and an inner ring that fitters can slide off from one side. With an inner diameter of 70 mm, an outer diameter of 125 mm and a width of 31 mm, the component primarily absorbs high transverse forces.

What is the NJ2214 ECP cylindrical roller bearing suitable for in operation?

As a support bearing, this design guides shafts in an axial direction whilst allowing for changes in length due to thermal expansion in the opposite direction. The line contact of the cylindrical rollers distributes the load widely across the raceways, enabling the component to withstand high radial forces whilst maintaining a compact design. Typical applications include industrial shaft bearings where fixed housing clearances and high radial shaft loads coexist.

What advantages do the polyamide cage and NJ design offer during assembly?

The polyamide material reduces the component’s weight and minimises friction losses during rotation. Thanks to the removable inner ring, technicians can mount both bearing rings separately onto the shaft and housing. As this is an unsealed bearing, designers incorporate external sealing elements and tailor the lubricant supply to the permissible operating range of -30 to +120 degrees Celsius.