d - 17 mm

F - 22 mm

D - 30 mm

B - 14 mm

C - 13 mm

r1 min. - 0,3 mm

r2 min. - 0,3 mm

da max - 19 mm

Da max. - 28 mm

ra max. - 0,3 mm

S - 0,5 mm

Weight - 0,04 Kg

Basic dynamic load rating (C) - 9,52 kN

Basic static load rating (C0) - 12,9 kN

Fatigue load limit (Pu) - 1,53

Reference speed - – r/min

Limiting speed - 9000 r/min

• Model Number: NA4903RS
• Inner Diameter：17mm Outer Diameter：30mm Width：14mm
• Type：Needle Roller Bearings
• Update date：2025-12-17
• Application:vertical pull,electronic components,air purification,boring bar boring bar,shaft milling machine,Industrial equipment,gear type,plastic blow molding,Pneumatic Control Valves,Food testing,Technical Equipment
• Similar models:INA NA4903 IKO RNA4903 NTN RNA4903L Timken RNA4903.2RS NSK RNA4903 KOYO RNA4903.2RS NSK NA4903 KOYO NA4903,2RS CX RNA4903 CRAFT NA4903
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903RS products，there is large inventory of SKF NA4903RS . We has been built up long-term cooperation with SKF company, could make a bulk order of the NA4903RS Which SKF NA4903RS 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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  22252YMB	260	480	130	Timken	Spherical Roller Bearings
  28580R/28520	50,8		25,4	KOYO	Tapered Roller Bearings
  2RNU9404	470,000	890,000	325,000	NTN	Cylindrical Roller Bearings
  2TS2-DF06A78LLA4-BCS28PX1/L696	30,000	47,000	18,000	NTN	Angular Contact Ball Bearings
  63214ZZ	70,000	125,000	39,700	NTN	Deep Groove Ball Bearings
  7211-BE-MP	55	100	21	NKE	Angular Contact Ball Bearings
  7228C	140	250	42	AST	Angular Contact Ball Bearings
  BA 2010 Z	31,75	38,1	15,88	IKO	Needle Roller Bearings
  BK283820	28	38	20	CX	Cylindrical Roller Bearings
  BTM 80 BTN9/P4CDB	80	125	20,25	SKF	Angular Contact Ball Bearings
  DAC4072W-15CS74	40	72	36	KOYO	Angular Contact Ball Bearings
  NF310	50	95	27	NTN	Cylindrical Roller Bearings
  751144SP.P5				FAG	ANGULAR CONTACT THRUST BALL BEARINGS
  LS-24	6.0000	10.5000	1.5625	FED	DEEP GROOVE BALL BEARINGS
  53418U				STEYR	THRUST BALL BEARINGS WITH SPHERICAL SEATING RING
  AAXK1105	25	42	2	NTN	THRUST NEEDLE BEARINGS
  120224	.7500	1.1250	1.5000	Rollway	JOURNAL ROLLER ASSEMBLIES
  XLS-33/4AC	3.7500	5.2500	.7500	CONSOLIDATED	ANGULAR CONTACT BALL BEARINGS
  NU-410	50	130	31	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  YCRS-96	2.2500	6.0000	3.3750	CONSOLIDATED	NEEDLE BEARINGS