d - 17 mm

Fw - 22 mm

D - 30 mm

B - 13 mm

C - 13 mm

r5 min. - 0,3 mm

Weight - 0,039 Kg

Basic dynamic load rating (C) - 11,5 kN

Basic static load rating (C0) - 15,1 kN

(Grease) Lubrication Speed - 12000 r/min

(Oil) Lubrication Speed - 19000 r/min

• Model Number:NA4903
• Inner Diameter：17mm Outer Diameter：30mm Width：13mm
• Type：Needle Roller Bearings
• Update date：2025-12-19
• Application:X-ray Equipment,directional control valve,Ball screw,cleaners,mathematical instruments,clean stationery,static control,Garment Accessories,Other Measurements,sterilizers,chamfering machine etc
• Similar models:ISO RNA4903-2RS SKF RNA4903.2RS NTN RNA4903 CX NA4903-2RS SKF RNA4903 NSK RNA4903TT AST RNA4903 NBS RNA49032RS NTN NA4903L IKO RNA4903U
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903 products，there is large inventory of MPZ NA4903 . We has been built up long-term cooperation with MPZ company, could make a bulk order of the NA4903 Which MPZ 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
  14123AA/14276	31.75	69,012	26,983	Fersa	Tapered Roller Bearings
  22308 KW33	40	90	33	ISO	Spherical Roller Bearings
  230/1000YMB	1000	1420	308	Timken	Spherical Roller Bearings
  6011LU	55,000	90,000	18,000	NTN	Deep Groove Ball Bearings
  61812	60	78	10	ISO	Deep Groove Ball Bearings
  938/932CD+X4S-938	114,3	212,725	142,875	Timken	Tapered Roller Bearings
  AST650 354520	35	45		AST	Plain Bearings
  FC40887	25	55	53,5	SNR	Tapered Roller Bearings
  LL352149/10	279,4	317,5	24,384	CX	Tapered Roller Bearings
  NJ310	50	110	27	FBJ	Cylindrical Roller Bearings
  NKIA 5908	40	62	30	ISO	Complex Bearings
  NTH-4270	66,73	109,6	9,53	KOYO	Thrust Roller Bearings
  RNNJ5208DF	260,000	540,000	382,000	NTN	Cylindrical Roller Bearings
  UCFL213	65			SNR	Bearing Units
  UCTU313+WU800	65		75	NACHI	Bearing Units
  105CM789	10.5000	16.6250	2.2500	American	CYLINDRICAL ROLLER BEARINGS
  6306K.2RS	30	72	19	FAG	DEEP GROOVE BALL BEARINGS
  W6200-2Z	10	30	9	SKF	DEEP GROOVE BALL BEARINGS
  CRM22	2.7500	6.2500	1.3750	SKF	CYLINDRICAL ROLLER BEARINGS
  238/530	530	650	90	CONSOLIDATED	SPHERICAL ROLLER BEARINGS