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SKU: 6903-2NSE NAC



  • Excellent high speed capability
  • Good radial load capacity
  • Good axial load capacity in both directions
  • Low torque requirements during startup and operation
  • Low noise
  • Little/no maintenance required
  • Longer life - adopted NACHI original seal design to prevent contamination and grease leakage, contains special grease for wider temperature ranges and longer life
  • Smooth and quiet operation - the precision level of our bearing components has been enhanced to ensure smooth and quiet operation
  • Buna-N rubber light contact seals on both sides for 55 mm bore and larger


Bearing MaterialSteel
Bore Diameter17 mm
Cage MaterialStamped Steel
Closure TypeDouble Seal
Load Capacity4600 N Dynamic/2550 N Static
Maximum Speed15000 rpm Grease/29000 rpm Oil
Number of Rows1
Outside Diameter30 mm
Seal MaterialBuna-N
Temperature Rating250 deg F
Width7.0 mm


Electric Motors, Automotive Alternators, Automotive Starters, Compressors, Blowers and Transmissions

Additional Information

Single-row deep groove ball bearings are the most common bearing type in the world due to their versatility and performance. These bearings are available in a variety of seal, shield and snap-ring arrangements. Bearings with seals or shields are standardized and already contain the proper amount of grease. Open bearings will require lubrication. These bearings can sustain radial and/or axial loads and because of their simple design, this bearing type can be produced to provide both high-running accuracy and high-speed operation.

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