Tapered Roller Bearings FAG 32309

FAG 32309 tapered roller bearing: A single-row roller bearing with a 45 mm bore, 100 mm outer diameter and a sheet steel cage for combined radial and axial loads.

The FAG 32309 tapered roller bearing is an open, single-row roller bearing in a standard design. Thanks to its angular raceways and tapered rollers, this design can simultaneously accommodate high radial forces as well as axial loads from one direction. The design comprises the outer ring and the inner ring with a set of rollers. With dimensions of 45 × 100 × 38.25 mm, the bearing is designed for shaft arrangements in mechanical engineering where precise guidance under combined loads is required.

What loads and arrangements characterise the 32309 tapered roller bearing?

This design is used where combined loads act on rotating shafts. As single-row tapered roller bearings can only accommodate axial forces in one direction, designers mount the bearing in a mirror-image configuration to a mating bearing in an X or O arrangement. Typical applications include gearbox shafts and general bearing locations in mechanical engineering. The dimensionally stable sheet steel cage guides the rolling elements and covers a permissible temperature range from –30 to +120 degrees.

What does the tolerance class P0/PN mean for the 32309 tapered roller bearing?

The bearing is manufactured to the standard tolerance class P0/PN (corresponding to ABEC 1), which meets the standard accuracy requirements in general mechanical engineering. As tapered roller bearings are not self-retaining, the outer ring and inner ring, together with the roller cage, can be fitted separately onto the shaft and housing. During installation, you adjust the axial operating clearance by positioning the bearing relative to the mating bearing to ensure an even load distribution across the entire raceway.