d - 17 mm

Fw - 22 mm

D - 30 mm

B - 13 mm

C - 13 mm

r5 min. - 0,3 mm

S - 1 mm

Weight - 0,04 Kg

Basic dynamic load rating (C) - 12,2 kN

Basic static load rating (C0) - 16,4 kN

(Grease) Lubrication Speed - 20000 r/min

(Oil) Lubrication Speed - 13000 r/min

• Model Number:NA4903
• Inner Diameter：17mm Outer Diameter：30mm Width：13mm
• Type：Needle Roller Bearings
• Update date：2025-12-17
• Application:other mold,SPA equipment,hydraulic cylinder,experimental equipment,hook,CNC,Liposuction device,Air,injection molding machine,tray industry,tobacco machinery
• Similar models:JNS RNA4903 JNS RNA4903M IKO NA4903UU NBS RNA4903 Timken NA4903 ISO NA4903 INA NA4903-XL CX NA4903 NSK NA4903TT NBS NA49032RS
• BEARING POWER International Trading Co.,Ltd. specialize in NA4903 products，there is large inventory of KOYO NA4903 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the NA4903 Which KOYO 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
  100TP145	254	508	95,25	Timken	Thrust Roller Bearings
  13030	150	225	56	SKF	Self-Aligning Ball Bearings
  22226 EK	230	130	64	SKF	Spherical Roller Bearings
  23034 MBW33	170	260	67	MPZ	Spherical Roller Bearings
  234719	98	145	60	ISO	Thrust Ball Bearings
  5217	85	150	49,2	NSK	Angular Contact Ball Bearings
  6305N	25,000	62,000	17,000	NTN-SNR	Deep Groove Ball Bearings
  655/654D+X1S-655	69,85	152,4	95,25	Timken	Tapered Roller Bearings
  6802VV	15	24	5	NSK	Deep Groove Ball Bearings
  7211BDT	55	100	21	NACHI	Angular Contact Ball Bearings
  HCB7211-C-2RSD-T-P4S	55	100	21	FAG	Angular Contact Ball Bearings
  NNF5032ADA-2LSV	160	240	109	SKF	Cylindrical Roller Bearings
  RNA4904	25	37	17	ISO	Needle Roller Bearings
  S7011 CD/P4A	90	55	18	SKF	Angular Contact Ball Bearings
  SF4224	210,000	280,000	35,000	NTN	Angular Contact Ball Bearings
  21308E.TVPB	40	90	23	FAG	SPHERICAL ROLLER BEARINGS
  9310K	50	72	12	FAF	DEEP GROOVE BALL BEARINGS
  CSXF055	5.5000	7.0000	.7500	INA	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  32309	45	100	36	CONSOLIDATED	TAPERED ROLLER BEARINGS
  SN-205..22205	25	-	46	CONSOLIDATED	PILLOW BLOCKS