d - 20 mm

D - 37 mm

B - 9 mm

C - 9 mm

r min. - 0,3 mm

da min. - 22 mm

da max - 24 mm

Da max. - 35 mm

ra max. - 0,3 mm

Weight - 0,037 Kg

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

Basic static load rating (C0) - 3,7 kN

(Grease) Lubrication Speed - 12 000 r/min

Calculation factor (f0) - 14,7

• Model Number: 6904DDU
• Inner Diameter：20mm Outer Diameter：37mm Width：9mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-16
• Application:boring bar boring bar,Broadcasting System,plastic rolling,Dental Drill etc,electric pump,Spectrum Products,storage shelves,printing machinery,stamping die,casting embedding,quality inspection equipment
• Similar models:NTN 6904ZZNR KOYO 6904-2RS KOYO 6904-2RD NSK 6904L11ZZ KBC 6904F2 NACHI 6904NR NTN 6904Z NTN 6904 PFI 6904-2RSC3 KOYO 6904-2RU
• BEARING POWER International Trading Co.,Ltd. specialize in 6904DDU products，there is large inventory of NSK 6904DDU . We has been built up long-term cooperation with NSK company, could make a bulk order of the 6904DDU Which NSK 6904DDU 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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