d - 17 mm

Fw - 22 mm

D - 30 mm

B - 13 mm

C - 13 mm

r min. - 0,3 mm

da min. - 19 mm

da max - 21 mm

Da max. - 28 mm

S - 0,3 mm

Weight - 0,039 Kg

Basic dynamic load rating (C) - 11,7 kN

Basic static load rating (C0) - 15,6 kN

Limiting speed - 18 000 r/min

• Model Number: NA 4903
• Inner Diameter：17mm Outer Diameter：30mm Width：13mm
• Type：Needle Roller Bearings
• Update date：2025-12-16
• Application:forming machine,Spectrum Products,Liposuction device,insect experimental analysis instrument,standing experimental equipment,knitted fabrics,boring bar boring bar,lathe,office equipment,embroidery cloth,Storage Tool
• Similar models:IKO NA4903UU NBS NA49032RS INA RNA4903-XL Timken RNA4903RS JNS RNA4903UU JNS NA4903UU ISO RNA4903 NSK NA4903TT NBS RNA4903 CX RNA4903-2RS
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903 products，there is large inventory of IKO NA 4903 . We has been built up long-term cooperation with IKO company, could make a bulk order of the NA 4903 Which IKO NA4903 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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