d - 17 mm

D - 30 mm

B - 7 mm

C - 7 mm

r min. - 0,3 mm

da min. - 19 mm

da max - 19,5 mm

Da max. - 28 mm

ra max. - 0,3 mm

Weight - 0,017 Kg

Basic dynamic load rating (C) - 4,6 kN

Basic static load rating (C0) - 2,55 kN

(Grease) Lubrication Speed - 24 000 r/min

(Oil) Lubrication Speed - 28 000 r/min

Calculation factor (f0) - 14,7

• Model Number: 6903
• Inner Diameter：17mm Outer Diameter：30mm Width：7mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-10
• Application:roller lathe,medical equipment,Spectrum Products,atomizer class,cooling system,Grinding and polishing equipment,Water Monitoring,forming machine,multi-knife lathe,auto tools,ventilation fans
• Similar models:CYSD 6903NR NSK 6903N PFI 6903-2RSC3 NTN 6903NR NSK 6903DDU ZEN P6903-GB NACHI 6903NR NSK 6903L11 NSK 6903L11DDU NACHI 6903ZE
• BEARING POWER International Trading Co.,Ltd. specialize in 6903 products，there is large inventory of NSK 6903 . We has been built up long-term cooperation with NSK company, could make a bulk order of the 6903 Which NSK 6903 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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