d - 17 mm

Fw - 22 mm

D - 30 mm

B - 13 mm

C - 13 mm

Weight - 0,037 Kg

Basic dynamic load rating (C) - 11,4 kN

Basic static load rating (C0) - 16,3 kN

(Grease) Lubrication Speed - 12000 r/min

(Oil) Lubrication Speed - 18000 r/min

• Model Number: NA4903
• Inner Diameter：17mm Outer Diameter：30mm Width：13mm
• Type：Needle Roller Bearings
• Update date：2025-12-17
• Application:heating fans,other mold,altimeter etc,molding machine,root canal filling,tapping machine,engineering machine,packaging materials,internal combustion engine,Performance test,Machine Tool Accessories
• Similar models:INA RNA4903-XL ISO RNA4903 NTN RNA4903R IKO NA4903UU NTN RNA4903 INA RNA4903-RSR CX RNA4903-2RS IKO RNA4903 IKO RNA4903U JNS NA4903M
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903 products，there is large inventory of CX NA4903 . We has been built up long-term cooperation with CX company, could make a bulk order of the NA4903 Which CX 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
  4201-2RS	12	32	14	ZEN	Deep Groove Ball Bearings
  358A/354A	45	85	20,638	Timken	Tapered Roller Bearings
  52407	80	25	59	SKF	Thrust Ball Bearings
  6319	95	200	45	FAG	Deep Groove Ball Bearings
  E-EE526131D/526190/526191D	330,2	482,6	306,388	NTN	Tapered Roller Bearings
  7219 BEGAPH	170	95	32	SKF	Angular Contact Ball Bearings
  99587/99100-B	149,225	254	66,675	Timken	Tapered Roller Bearings
  ARX55X178X50.5	55,000	178,000	50,500	NTN	Needle Roller Bearings
  CX013				CX	Wheel Bearings
  HK1622-ZW	16	22	22	INA	Needle Roller Bearings
  NA4844	220	270	50	INA	Needle Roller Bearings
  NH406	30	90	23	CX	Cylindrical Roller Bearings
  NN 3006 TN/SP	30	55	19	SKF	Cylindrical Roller Bearings
  RNAO25x37x16	25	37		CX	Cylindrical Roller Bearings
  SCW 08	8			NBS	Linear Bearings
  SS 61804	20	32	7	ISB	Deep Groove Ball Bearings
  126TV	6	19	6	FAG	SELF
  PAO-24	3.0000	5.7500	1.0625	RIV	ANGULAR CONTACT BALL BEARINGS
  280RU02	280	500	80	Torrington	CYLINDRICAL ROLLER BEARINGS
  477205-015	.9375	2.0472	.5906	CONSOLIDATED	PILLOW BLOCKS