SKF LBCD linear ball bearings
LBCD linear ball bearings are a variant of the LBCR design. The primary feature of this bearing is its self-aligning capability that accommodates tilting of the whole bearing through an angle of ±30 minutes of arc. This
tilting feature compensates for misalignment, which may be caused by inaccuracies in fitting or manufacturing (housing bore diameter), or by significant bending of an unsupported shaft. The self-aligning feature cannot, however, compensate for two non-parallel shafts in an assembly.
The cage, seals and shields have been optimized to accommodate the self aligning feature so that the bearing and especially the shields or seals remain concentric with the shaft.
All other characteristics of the LBCR linear ball bearings are also valid for the self-aligning LBCD design. LBCD linear ball bearings must always be firmly fixed in the axial direction.