d - 17 mm

F - 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

Weight - 0,039 Kg

Basic dynamic load rating (C) - 11,8 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：2026-01-01
• Application:Pneumatic Control Valves,food safety,engineering machinery,mechanical and electrical,Technical Equipment,other lathe,diving equipment,Leather Products,stamping die,Body shaping,Cleaning equipment
• Similar models:AST RNA4903 JNS NA4903 IKO RNA4903 Timken NA4903 ISO RNA4903-2RS CX NA4903-2RS NTN NA4903L NTN RNA4903LL INA RNA4903-XL Timken RNA4903
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903 products，there is large inventory of JNS NA 4903 . We has been built up long-term cooperation with JNS company, could make a bulk order of the NA 4903 Which JNS 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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  AST20 4550	45	50		AST	Plain Bearings
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  NU230E	150	270	45	NTN	Cylindrical Roller Bearings
  NU30/500	500	720	167	CX	Cylindrical Roller Bearings
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  STO 12	12	32	11,8	SKF	Cylindrical Roller Bearings
  Z-565676.ZL-K-C5	420	620	150	FAG	Cylindrical Roller Bearings
  2208-2RS-TVH	40	80	23	FAG	SELF
  2MMV9103WI-CRDU	17	35	10	FAF	ANGULAR CONTACT BALL BEARINGS
  200-S-ST	10	30	9	MRC	DEEP GROOVE BALL BEARINGS
  2212SA	60	110	28	FED	SELF
  30204J2	20	47	14	SKF	TAPERED ROLLER BEARINGS
  KAA15CLO	1.5000	1.8750	.1875	KAYDON	DEEP GROOVE BALL BEARINGS
  FPCU508-2RS1	5.5000	6.2500	.5000	SKF	DEEP GROOVE BALL BEARINGS