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：2025-12-11
• Application:transistor fittings,garden machinery,aerial work platform,hydraulic cylinder,security,sheet industry,printing machinery,Forging machine,power tools,disposable,wall materials
• Similar models:IKO NAG4903 IKO NAG4903UU SKF NA4903.2RS IKO NAU4903 SKF NA4903
• 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.

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  L770849D/L770810/L770810D	457,2	596,9	276,225	NTN	Tapered Roller Bearings
  NH1068	340	520	82	ISO	Cylindrical Roller Bearings
  NK 22/20	22	30	20	NBS	Needle Roller Bearings
  NP2228	140	250	68	ISO	Cylindrical Roller Bearings
  NN3015KC1NAP4	75	115	30	NTN	Cylindrical Roller Bearings
  NNF5022ADA-2LSV	110	170	80	SKF	Cylindrical Roller Bearings
  NP 1044	220	310		NACHI	Cylindrical Roller Bearings
  SL02-4944	220	300	80	NTN	Cylindrical Roller Bearings
  SL045011-PP	55	90	46	INA	Cylindrical Roller Bearings
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  5310-WG	50	110	44.4	FAF	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  MW-11/2				NH	THRUST BALL BEARINGS
  SAA70ES	70		49	SKF	ROD ENDS
  51205				SKF	THRUST BALL BEARINGS
  GE160ES-2RS	160	230	105	SKF	SPHERICAL PLAIN BEARINGS
  EE-1	.1875	.5000	.1562	SKF	DEEP GROOVE BALL BEARINGS