d - 17 mm

Fw - 22 mm

D - 30 mm

B - 13 mm

C - 13 mm

r - 0,3 mm

S - 1 mm

Weight - 0,04 Kg

Basic dynamic load rating (C) - 12,2 kN

Basic static load rating (C0) - 16,4 kN

(Grease) Lubrication Speed - 20000 r/min

(Oil) Lubrication Speed - 13000 r/min

• Model Number: NA4903
• Inner Diameter：17mm Outer Diameter：30mm Width：13mm
• Type：Needle Roller Bearings
• Update date：2025-12-11
• Application:spectrometer,mechanical and electrical,chuck industry,wall materials,instrument,Spectrum Products,engine,crimping tools,linear drive,agriculture,car shock absorber
• Similar models:ISO RNA4903 JNS RNA4903 KOYO RNA4903RS JNS RNA4903M NSK RNA4903TT NSK RNA4903 IKO NA4903U INA RNA4903-XL Timken RNA4903.2RS NBS NA4903
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903 products，there is large inventory of Timken NA4903 . We has been built up long-term cooperation with Timken company, could make a bulk order of the NA4903 Which Timken 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
  11306	30	72	52	KOYO	Self-Aligning Ball Bearings
  304PP	20	52	15	Timken	Deep Groove Ball Bearings
  39250/39412	63,5	104,775	21,433	CX	Tapered Roller Bearings
  6216-2RS	80	140	26	CRAFT	Deep Groove Ball Bearings
  6934-2RS	170	230	28	CYSD	Deep Groove Ball Bearings
  B7216-C-T-P4S	80	140	26	FAG	Angular Contact Ball Bearings
  BR 607632	95,25	120,65	50,8	IKO	Needle Roller Bearings
  HK2512	25	32	12	SKF	Needle Roller Bearings
  LRJ1.1/8	28,575	63,5	15,875	RHP	Cylindrical Roller Bearings
  KBKL 40-PP	40	62		NBS	Linear Bearings
  NA3100	100	145	43	Timken	Needle Roller Bearings
  NKS40	40	55	22	ISO	Needle Roller Bearings
  SY 30 TF	30			SKF	Bearing Units
  UCP209	45			CRAFT	Bearing Units
  H2309.107	45	65		FAG	ADAPTERS
  5413-C	65	160	71.44	MRC	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  AH2336	180	170		STEYR	WITHDRAWAL SLEEVES
  SFT-32	2.0000			Sealmaster	PILLOW BLOCKS
  MCS322	110	240	50	Rollway (Bronze Cage)	CYLINDRICAL ROLLER BEARINGS
  6213Z	65	120	23	STEYR	DEEP GROOVE BALL BEARINGS