d - 17 mm

F - 22 mm

D - 30 mm

B - 14 mm

C - 13 mm

r min. - 0,3 mm

da min. - 19 mm

da max - 21 mm

Da max. - 28 mm

Weight - 0,04 Kg

Basic dynamic load rating (C) - 10,3 kN

Basic static load rating (C0) - 13,1 kN

Limiting speed - 8 500 r/min

• Model Number: NA 4903UU
• Inner Diameter：17mm Outer Diameter：30mm Width：14mm
• Type：Needle Roller Bearings
• Update date：2025-12-13
• Application:Warehouse Shelf Equipment,Microwave Equipment,Perfusion device,Automation,Security Equipment,oral medical device,static control,boring bar boring bar,plastic rolling,inorganic chemical,Grinding and polishing equipment
• Similar models:NTN NA4903LL SKF RNA4903.2RS JNS RNA4903M CRAFT NA4903 NBS RNA4903RS JNS RNA4903 NTN RNA4903 CX NA4903 NBS NA49032RS ZEN RNA4903
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903UU products，there is large inventory of JNS NA 4903UU . We has been built up long-term cooperation with JNS company, could make a bulk order of the NA 4903UU Which JNS NA4903UU 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
  1204-K	20	47	14	NKE	Self-Aligning Ball Bearings
  18690/18620DC+X1S-18690	46,038	79,375	41,272	Timken	Tapered Roller Bearings
  230/1250 K	1250	1750	375	ISB	Spherical Roller Bearings
  51316	80	140		AST	Thrust Ball Bearings
  6014-Z	70	110	20	NKE	Deep Groove Ball Bearings
  6707	35,000	44,000	5,000	NTN	Deep Groove Ball Bearings
  E-CRT4604	228,6	482,6	104,775	NTN	Thrust Roller Bearings
  NUP312E	60	130	31	NTN	Cylindrical Roller Bearings
  UEL316D1	80,000	170,000	106,4	NTN	Deep Groove Ball Bearings
  UCP205	25			CX	Bearing Units
  LS20-AC	3.5000	6.5000	1.1250	FAG	ANGULAR CONTACT BALL BEARINGS
  G-48	3.8750	5.8750		Aetna	THRUST BALL BEARINGS
  93612	1.1250	1.5000	.7500	BERLISS	JOURNAL ROLLER ASSEMBLIES
  1218SA	90	160	30	FED	SELF
  FPCU608-2RS1	6.5000	7.2500	.5000	SKF	DEEP GROOVE BALL BEARINGS
  110SD32	110	200	69.8	Torrington (Old No.)	SPHERICAL ROLLER BEARINGS
  GEZ412ES-2RS	4.7500	7.3750	4.1562	SKF	SPHERICAL PLAIN BEARINGS
  95748	1.2500	1.8750	3.0000	RBC	JOURNAL ROLLER ASSEMBLIES
  12APL	75	130	25	RIV	DEEP GROOVE BALL BEARINGS
  93418	.8750	1.2500	1.1250	CONSOLIDATED	JOURNAL ROLLER ASSEMBLIES