d - 17 mm

F - 22 mm

D - 30 mm

B - 13 mm

C - 13 mm

r min. - 0,3 mm

s - 0,5 mm

da min. - 19 mm

Da max. - 28 mm

ra max. - 0,3 mm

Weight - 0,037 Kg

Basic dynamic load rating (C) - 11,2 kN

Basic static load rating (C0) - 14,6 kN

(Grease) Lubrication Speed - 12 000 r/min

(Oil) Lubrication Speed - 18 000 r/min

• Model Number:NA4903R
• Inner Diameter：17mm Outer Diameter：30mm Width：13mm
• Type：Needle Roller Bearings
• Update date：2025-12-31
• Application:Workpiece,agricultural testing and analysis equipment and related,shaft milling machine,Traffic Fire Protection Equipment Security equipment,Broadcasting System,chromatography,air shower etc,Vertical pull,altimeter etc,Optical Instruments,Dental Equipment
• Similar models:INA NA4903-XL CX NA4903-2RS NSK NA4903 IKO NA4903 IKO RNA4903UU INA NA4903-RSR KOYO RNA4903 SKF RNA4903 INA RNA4903-RSR NTN RNA4903LL
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903R products，there is large inventory of NTN NA4903R . We has been built up long-term cooperation with NTN company, could make a bulk order of the NA4903R Which NTN NA4903R 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
  1202	15	35	11	CX	Self-Aligning Ball Bearings
  23144A2X	220	370	120	NACHI	Cylindrical Roller Bearings
  24168 K30W33	340	580	243	ISO	Spherical Roller Bearings
  24180-B	400	650	250	FAG	Spherical Roller Bearings
  3315	75	160	68.3	KOYO	Angular Contact Ball Bearings
  7205-BE-TVP	25	52	15	NKE	Angular Contact Ball Bearings
  BC1B319995A	32	58	21	SKF	Deep Groove Ball Bearings
  GE 032/50 XES	32	50	22	CX	Plain Bearings
  HM542948/11	203,2	346,075	79,375	CX	Tapered Roller Bearings
  MFJLT-2518	25	33	18	NSK	Needle Roller Bearings
  NA4906.2RS	30	47	18	SKF	Needle Roller Bearings
  WTF170KVS2401Eg	170	240	175	NSK	Tapered Roller Bearings
  LP1226U	130	230	40	Rollway	CYLINDRICAL ROLLER BEARINGS
  R22.2RS	1.3750	2.5000	.5625	FAG	DEEP GROOVE BALL BEARINGS
  IR-8517-C	2.5000		1.7600	RBC	NEEDLE BEARINGS
  FPCB412	4.7500	5.3750	.3125	SKF	DEEP GROOVE BALL BEARINGS
  6217ZNR	85	150	28	STEYR	DEEP GROOVE BALL BEARINGS
  RLS-301/2-L	12.5000	19.0000	2.6250	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  SNZ-214..22214	70	60	80	CONSOLIDATED	PILLOW BLOCKS
  AOH-24164x300	320	300		CONSOLIDATED	WITHDRAWAL SLEEVES