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These Deep Groove Ball Bearings were developed to cater for the exacting requirements of contaminated or difficult lubrication conditions. Specially treated bearing steel ensures the components last up to twice as long with contaminated lubricant as conventional Deep Groove Ball Bearings and up to 1.5 times as long in clean conditions. This extended service life reduces maintenance and repair costs.

Condition Description

  • Contamination
  • Lubrication


  • Industrial Pumps and Compressors
  • Power Transmission

Product Features

  • The bearings have the same dimensions as standard bearings, making them easily interchangeable
  • The bearing steel used is specially heat treated
  • This results in significantly longer service lives in both difficult (low viscosity and/or contamination) and normal conditions


  • Longer life
  • Lower servicing and repair costs
6203 ZZ C3 NS7S UR
Show Description
6203Bearing type and series / Bore diameter
ZZShields on both sides
C3Radial Internal Clearance
NS7SGrease type / Grease quantity
URSpecial Heat Treatment