SKF ConCentra ball bearings and units

True concentric locking, for fast and reliable mounting

SKF ConCentra ball bearings and units
SKF ConCentra ball bearings and units are part of SKF’s extensive line of ready-to-install mounted products. These units with true concentric location on the shaft are particularly well suited for applications
where there are relatively high speeds and moderate loads and where vibration, low noise, and minimal maintenance are key operational parameters (industrial fans, textile machinery, conveyors, others).

Easy handling
  • fast, easy and safe to mount and dismount
  • patented locking system
  • no loose parts
  • no need of preventing the sleeve from rotating at mounting

High performances
  • full concentric locking and inner ring
  • entirely supported by the shaft
  • high performances with commercial
  • grade shafts
  • reduced vibration levels

Minimum maintenance
  • long service life with high quality grease
  • under certain operating conditions
  • the bearing is re-lubrication free

Flexibility
  • offered as a ready-to-mount unit or as an insert bearing
  • global availability in both metric and
  • inch sizes
SKF ConCentra Y-bearings have a symmetrically extended inner ring on both sides. The patented SKF ConCentra locking technology is based on the expansion and contraction of two mating surfaces: the bearing bore and the external surface of the stepped sleeve. Both surfaces have precision-engineered serrations. When the grub screws in the mounting collar are tightened, the mating surfaces are displaced axially. This forces the bearing inner ring to expand and the stepped sleeve to contract, evenly, providing a true concentric fit on the shaft.SKF ConCentra Y-bearings provide an easy, quick and reliable way to secure a bearing to a shaft.

SKF ConCentra Y-bearings,series designation YSP 2 SB, are equipped with a rugged standard seal on both sides, fitted with additional plain sheet steel flingers. The outer ring has two lubrication holes as standard, one at each side and positioned 120° apart. Bearings without lubrication holes can be supplied on request (designation suffix W).

SKF Y-bearings in the YSP 2 SB series are available for metric shafts from 25 to 60 mm and for inch shafts from 1 to 211/16 inches.
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