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：2026-01-03
• Application:,tray industry,car and accessories,extruder,safety testing,granulator,Industrial,pneumatic,Medium and large motor,Hydraulic Press,Industrial Electromechanical
• Similar models:IKO NA4903 Timken RNA4903.2RS INA RNA4903 JNS RNA4903UU CX RNA4903-2RS NTN RNA4903L AST RNA4903 IKO RNA4903 ISO RNA4903-2RS MPZ NA4903
• 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
  32310F	50	110	42,25	Fersa	Tapered Roller Bearings
  594/592A	95.250	152.400	39.688	NACHI	Tapered Roller Bearings
  61811-2RS1	72	55	9	SKF	Deep Groove Ball Bearings
  B200-5	200	290	38	NSK	Deep Groove Ball Bearings
  GTR 354830	35	48	30	IKO	Needle Roller Bearings
  CX147				CX	Wheel Bearings
  GYA104RRB	31.75	72	36,5	Timken	Deep Groove Ball Bearings
  NK75/25	75	92	25	CX	Needle Roller Bearings
  NN4024 K	120	180	60	ISO	Cylindrical Roller Bearings
  NU2330	150	320	108	CYSD	Cylindrical Roller Bearings
  NUP 328 E	140	300	62	NACHI	Cylindrical Roller Bearings
  UK310+H-27	42,8625	110	55	SNR	Deep Groove Ball Bearings
  F-38	4.4687	2.8125		Aetna	THRUST BALL BEARINGS
  W61903-2RS1	17	30	7	SKF	DEEP GROOVE BALL BEARINGS
  AZ406819			9.0	IKO	THRUST ROLLER BEARINGS
  RMS13L	1.5000	3.7500	.9375	NH	CYLINDRICAL ROLLER BEARINGS
  SUCSP209-27	1.6875			IPTCI	STAINLESS STEEL PILLOW BLOCKS
  140BA03	140	300	62	Torrington	ANGULAR CONTACT BALL BEARINGS
  5208	40	80	30.2	CONSOLIDATED	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  222SM170	170	340	92	CONSOLIDATED	SPLIT SPHERICAL ROLLER BEARINGS