Cylindrical Roller Bearings FAG NJ317 -E-XL-M1-C3

The NJ317 -E-XL-M1-C3 cylindrical roller bearing (85 × 180 × 41 mm) can accommodate high radial loads and serves as a support bearing with axial guidance on one side.

The FAG NJ317 -E-XL-M1-C3 cylindrical roller bearing is a single-row roller bearing designed for demanding industrial applications. With a bore of 85 mm, an outside diameter of 180 mm and a width of 41 mm, the component transmits very high radial forces. The line contact of the cylindrical rollers ensures high rigidity during operation. As an open design without an integrated seal, the bearing can be integrated directly into existing lubrication circuits.

How does the support bearing function work in the NJ317 -E-XL-M1-C3 cylindrical roller bearing?

This bearing is primarily used in bearing arrangements subject to high radial forces and with defined single-sided axial guidance. Due to the NJ design, the inner ring has a single flange, whilst the outer ring has two flanges. As a result, the unit acts as a support bearing: it absorbs radial forces and guides the shaft axially in one direction. In the opposite direction, the bearing allows for axial length changes in the shaft due to thermal expansion.

What are the advantages of a brass cage and C3 clearance?

The brass cage (designation M1) guides the cylindrical rollers precisely and is suitable for high levels of vibration or rapid changes in speed. The design is complemented by the slightly increased radial clearance, C3. This increased clearance between the rollers and raceways compensates for fit allowances and temperature differences between the inner and outer rings. The component is designed for a temperature range of –30 to +150 degrees and complies with tolerance class P0/PN or ABEC 1.