Angular Contact Ball B. FAG 3219 -M

The FAG 3219-M angular contact ball bearing, with dimensions of 95 × 170 × 55.6 mm, accommodates combined radial loads as well as axial loads in both directions.

The double-row angular contact ball bearing 3219 -M combines a compact design with high load-carrying capacity in both the radial and axial directions. The internal geometry is functionally equivalent to two single-row angular contact ball bearings in an O-arrangement, but requires less installation space in the axial direction. Manufactured from standard rolling-element bearing steel 100Cr6 and fitted with a guided brass cage, this design is suitable for environments with operating temperatures between –20 and +150 degrees Celsius.

What are the key features of the double-row angular contact ball bearing 3219-M?

This rolling bearing accommodates combined loads and supports rotating shafts in both axial directions. Due to the angular contact between the two rows of balls, axial forces are transmitted directly via the raceways on both sides. The design, which has no groove or flange on the outer ring, allows for flush mounting in cylindrical housing bores, whilst manufacture to tolerance class P0 or PN ensures defined dimensional accuracy when installed.

What is the function of the brass cage in this bearing design?

The suffix -M indicates the solid brass cage, which precisely maintains the spacing between the rolling elements. Brass is characterised by high mechanical strength and thermal resilience, and promotes smooth running under dynamic loads. As an open design, this bearing has no integrated seals, allowing lubricants to reach the raceways directly and heat to be dissipated via the lubrication circuit.