d - 17 mm

Fw - 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

S - 0,3 mm

Weight - 0,039 Kg

Basic dynamic load rating (C) - 11,7 kN

Basic static load rating (C0) - 15,6 kN

Limiting speed - 18 000 r/min

• Model Number:NA 4903
• Inner Diameter：17mm Outer Diameter：30mm Width：13mm
• Type：Needle Roller Bearings
• Update date：2025-12-20
• Application:orthodontic material,medical equipment,leather processing,floor industry,Machine Tool Accessories,standing experimental equipment,drawing die,fabric products,sucker industry,horizontal processing,Cutting Machine
• Similar models:NSK NA4903TT NBS RNA4903 AST RNA4903 SKF NA4903RS MPZ NA4903 CRAFT NA4903 NTN RNA4903LL KOYO RNA4903 IKO RNA4903UU INA RNA4903
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903 products，there is large inventory of IKO NA 4903 . We has been built up long-term cooperation with IKO company, could make a bulk order of the NA 4903 Which IKO 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
  240145/240241XH	145	241,3	126	Gamet	Tapered Roller Bearings
  2582/2523	31,75	69,85	23,812	ISO	Tapered Roller Bearings
  33287/33472	73,025	120	29,7942	AST	Tapered Roller Bearings
  440RN30	440	613		Timken	Cylindrical Roller Bearings
  6205F600	25,000	52,000	15,000	SNR	Deep Groove Ball Bearings
  7317BECBY	85	180	41	SKF	Angular Contact Ball Bearings
  BK2025	20	26	25	ISO	Cylindrical Roller Bearings
  E 265 /NS 7CE3	65	120	23	SNFA	Angular Contact Ball Bearings
  EXP305	25			SNR	Bearing Units
  GE 17 DO-2RS	17	30	14	INA	Plain Bearings
  IJ113017				ILJIN	Angular Contact Ball Bearings
  GEZ 112 ESX-2LS	71,438	44,45	38,887	SKF	Plain Bearings
  NF 222	110	178.5		NACHI	Cylindrical Roller Bearings
  PK12X16X10.2	12,000	16,000		NTN	Needle Roller Bearings
  RNU080821NR	40	75	21	KOYO	Cylindrical Roller Bearings
  XLJT-2	2.0000	3.3125	.6250	RHP	ANGULAR CONTACT BALL BEARINGS
  MMRJN30	30	72	19	R&M	CYLINDRICAL ROLLER BEARINGS
  40TAB07	40	72	15	Nachi	ANGULAR CONTACT BALL SCREW SUPPORT BEARINGS
  RLS-38	4.7500	8.2500	1.3125	SKF	DEEP GROOVE BALL BEARINGS
  8x16x7mm	8	16	7	CONSOLIDATED	OIL SEALS