Double direction angular contact thrust ball bearings

Double direction angular contact thrust ball bearings were developed for applications where space is limited and easy mounting is required. SKF double direction bearings are greased and sealed as standard. These ready-to-mount bearings are available in two series:
  • double direction bearings in the BEAS series (fig. 1), for shaft diameters from 8 to 30 mm
  • double direction bearings for bolt mounting in the BEAM series (fig. 2), for shaft diameters from 12 to 60 mm

BEAS series

Bearings in the BEAS series correspond in design to two single direction bearings arranged back-to-back. They are non-separable and have a one-piece outer ring, a two-piece inner ring, and a 60° contact angle. The bearings accommodate radial loads, and axial loads in both directions. Preload (which is preset at the factory) is applied by clamping the inner ring halves on the screw drive shaft with, for example, a precision lock nut.

BEAS bearings have an annular groove and lubrication holes in the outer ring as standard to relubricate the bearing easily and reliably when necessary.

BEAM series

Bearings in the BEAM series correspond in design to BEAS series bearings except that the outer ring is much thicker and equipped with through holes for attachment bolts. By bolting directly onto an associated component, the design and mounting process is simplified. To enable relubrication, if required, one side face and the bearing outside surface have M6 threaded holes for grease fittings. The holes are plugged on delivery with grub (set) screws. The side face with the threaded hole should be mounted opposite the machine wall. Bearings manufactured to larger tolerances (designation suffix PE) do not have a threaded hole on the outside surface of the bearing and can only be relubricated via the threaded hole in the side face.

BEAM bearings have an annular groove on their outside surface that can be used to dismount the bearing from its seat on the screw drive shaft.

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