Cylindrical Roller Bearings FAG NUP309 -E-M1

The FAG NUP309 -E-M1 cylindrical roller bearing supports shafts with a 45 mm bore as a fixed bearing in both axial directions.

The NUP309 -E-M1 cylindrical roller bearing is a single-row rolling bearing from FAG Rolling Bearings which withstands high radial forces whilst also providing axial guidance. With a bore of 45 mm, an outer diameter of 100 mm and a width of 25 mm, the component complies with standard tolerance P0/PN or ABEC 1. Due to its NUP design, this open bearing serves as a fixed bearing in bearing arrangements subject to combined loads.

When is the NUP309 -E-M1 cylindrical roller bearing used as a fixed bearing?

This fixed bearing design is suitable for applications where a shaft is to be axially fixed on both sides relative to the housing, whilst simultaneously withstanding heavy radial loads. The design combines two fixed flanges on the outer ring with a fixed inner ring flange and a loose flange disc. This enables the bearing to accommodate axial forces in both directions. Typical applications include shaft mountings with axial guidance on both sides under grease or oil lubrication.

What are the distinctive features of the brass cage in the NUP309 -E-M1 cylindrical roller bearing?

The solid brass cage (-M1) guides the cylindrical rollers precisely and offers high strength against vibrations or shock loads. The open bearing has no integrated seals, allowing lubricants to circulate freely. The operating temperature range is from –30 to +150 degrees Celsius with normal radial clearance. An external seal on the bearing housing protects the raceways from dirt and moisture.