d - 17 mm

D - 30 mm

B - 13 mm

F - 22 mm

r_1,2 - min. - 0.3 mm

s - 0.5 mm

d_a - min. - 19 mm

D_a - max. - 28 mm

r_a - max. - 0.3 mm

Basic dynamic load rating - C - 11.4 kN

Basic static load rating - C₀ - 16.3 kN

Fatigue load limit - P_u - 2 kN

Reference speed - 18000 r/min

Limiting speed - 20000 r/min

Mass bearing - 0.037 kg

• Model Number: NA 4903
• Inner Diameter：30mm Outer Diameter：17mm Width：13mm
• Type：Cylindrical Roller Bearings
• Update date：2025-04-23
• Application:Rolling mill,machining,Body shaping,Grinding and polishing equipment,,spring industry,horizontal processing,storage and transportation equipment,root canal filling,dynamic blood pressure,Warehouse Shelf Equipment
• Similar models:SKF NA4903 IKO NAU4903 IKO NAG4903UU SKF NA4903.2RS IKO NAG4903
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903 products，there is large inventory of SKF NA 4903 . We has been built up long-term cooperation with SKF company, could make a bulk order of the NA 4903 Which SKF 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  114FC81594	570	815	594	KOYO	Cylindrical Roller Bearings
  22260 KCW33+H3160	300	540	140	ISO	Spherical Roller Bearings
  3214-B	70	125	39,7	NKE	Angular Contact Ball Bearings
  5846				Ruville	Wheel Bearings
  6015	75	115	20	KBC	Deep Groove Ball Bearings
  6021	105	160	26	CRAFT	Deep Groove Ball Bearings
  6310N	50	110	27	NACHI	Deep Groove Ball Bearings
  7906AC	30	47	9	NACHI	Angular Contact Ball Bearings
  BAM 812	12,7	17,462	19,05	IKO	Needle Roller Bearings
  GRA008RR	12,7	40	19,05	Timken	Deep Groove Ball Bearings
  HH221449/HH221410D+HH221449XB	101,6	190,5	127	Timken	Tapered Roller Bearings
  NJ1010	50	80	16	NSK	Cylindrical Roller Bearings
  S6002	15	32	9	FAG	Deep Groove Ball Bearings
  MS17AC	2.5000	5.5000	1.2500	FAG	ANGULAR CONTACT BALL BEARINGS
  ZARN4090TN	40	90		INA	NEEDLE BEARINGS
  NUKR52C.DZ	20	52	24	FAG	NEEDLE BEARINGS
  KF040XPO	4.0000	5.5000	.7500	KAYDON	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  309-S	45	100	25	MRC	DEEP GROOVE BALL BEARINGS
  81202			5.0	CONSOLIDATED	THRUST ROLLER BEARINGS
  GE-17C	17	30	14	CONSOLIDATED	SPHERICAL PLAIN BEARINGS