NA6903 Bearing

Needle roller bearing

  • Bore d17 mm
  • Outer dia. D30 mm
  • Width B23 mm
  • Weight≈ 0.066 kg

High radial loads in a small housing: gearboxes, pumps, agricultural and construction machinery.

Technical data

Bearing designationNA6903
TypeNeedle roller bearing
Bore d17 mm
Outer dia. D30 mm
Width B23 mm
Weight≈ 0.066 kg

Designation meaning and notes

  • Needle roller bearing with inner ring.

Dimensions are standard catalogue values; the weight is an approximate calculation. Please confirm before ordering.

Common suffixes for NA6903

NA6903-2RSRubber seals on both sides (sealed), greased

Click a designation to open it in the bearing finder. Suffix usage can differ slightly between brands.

Matching seal (radial shaft seal)

17 × 30 mm

Needle roller bearings usually take a thin (type G) shaft seal: inner diameter 17 mm, outer diameter 30 mm. We'll help you choose the width to fit the housing.

Quote for bearing and seal