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NSK's Long-Life Vibrating Screen Series of Spherical Roller Bearings are engineered specifically to withstand the harsh working environments and frequent vibration of the mining, quarrying and construction industries.

(Supersedes the CA series VS bearings).

Condition Description

  • High Load
  • Misalignment
  • Vibration


  • Material Handling
  • Oil and Gas
  • Paper Machinery
  • Quarrying and Mining
  • Utilities


  • Precision machined one piece brass cage and contoured roller pockets
  • Improved surface roughness on rollers and inner and outer rings
  • Heat treated rollers to prevent cracks from vibrations and shock loads
  • Self aligning ability with floating guide ring
  • Controlled roller skew
  • Internal radial clearance set at 2/3 ISO standard bearings
  • Outer dimensions set at 1/2 of ISO standard bearings
  • 40mm - 200mm bore diameter



  • Twice the service life of conventional bearings
  • Reduced maintenance costs.
  • High dynamic and static load ratings- increased by 1.25x's
  • Dampened vibration and highly resistant to heavy and shock loads
  • High speed performance and low operating temperature rise
  • Better roller guidance and  smooth running
  • Reduced bearing damage from slippage, surface fatigue and  flaking

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