d - 17 mm

F - 22 mm

D - 30 mm

B - 13 mm

C - 13 mm

r min. - 0,3 mm

da min. - 19 mm

da max - 21 mm

Da max. - 28 mm

Weight - 0,039 Kg

Basic dynamic load rating (C) - 10,8 kN

Basic static load rating (C0) - 14,3 kN

Limiting speed - 18 000 r/min

1 - corrosion resistant

• Model Number: NA4903M
• Inner Diameter：17mm Outer Diameter：30mm Width：13mm
• Type：Needle Roller Bearings
• Update date：2025-12-15
• Application:textile machinery,glass,electromyography machine,pneumatic,powder metallurgy,car,relay,Hydraulic Press,medical equipment,electromagnetic clutch,car and accessories
• Similar models:NTN RNA4903L KOYO NA4903 NSK RNA4903TT IKO NA4903U JNS NA4903UU NSK NA4903TT IKO NA4903 INA NA4903 INA NA4903-RSR NSK RNA4903
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903M products，there is large inventory of JNS NA4903M . We has been built up long-term cooperation with JNS company, could make a bulk order of the NA4903M Which JNS NA4903M 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
  392/394A	61,912	110	22	Fersa	Tapered Roller Bearings
  4212-2RS	60	110	28	FBJ	Deep Groove Ball Bearings
  61912	60	85	13	ISO	Deep Groove Ball Bearings
  6226-Z	230	130	40	SKF	Deep Groove Ball Bearings
  6913N	65	90	13	NSK	Deep Groove Ball Bearings
  ASTT90 F4540	45	50		AST	Plain Bearings
  N1010	50	80	16	KOYO	Cylindrical Roller Bearings
  NJ 252	260	480	80	NSK	Cylindrical Roller Bearings
  NJ2309 EMA	45	100	36	AST	Cylindrical Roller Bearings
  RMS 14	107,95	44,45	26,988	SKF	Deep Groove Ball Bearings
  RNJ1610	80,000	170,000	65,000	NTN	Cylindrical Roller Bearings
  SL182919	95	130	22	INA	Cylindrical Roller Bearings
  NK19/16	27		16	INA	NEEDLE BEARINGS
  114-KSZZG	70	110	20	MRC	DEEP GROOVE BALL BEARINGS
  47519	95	170	32	New Departure	DEEP GROOVE BALL BEARINGS
  YAR212-204	2.2500	4.3307	1.0230	SKF	PILLOW BLOCKS
  RLS-22-LL	4.5000	8.0000	1.3125	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  NKI-30/30	30	45	30	CONSOLIDATED	NEEDLE BEARINGS
  NA-6909	45	68	40	CONSOLIDATED	NEEDLE BEARINGS
  AT-751				CONSOLIDATED	THRUST ROLLER BEARING WITH SPHERICAL SEATING RING