d - 17 mm

Fw - 22 mm

D - 30 mm

B - 23 mm

C - 23 mm

r5 min. - 0,6 mm

S - 1 mm

Weight - 0,084 Kg

Basic dynamic load rating (C) - 19,8 kN

Basic static load rating (C0) - 30,6 kN

(Grease) Lubrication Speed - 20000 r/min

(Oil) Lubrication Speed - 13000 r/min

• Model Number: NA6903
• Inner Diameter：17mm Outer Diameter：30mm Width：23mm
• Type：Needle Roller Bearings
• Update date：2025-12-11
• Application:pneumatic,respirator,industrial fans,security equipment,ship special,industrial supplies,sucker industry,motor,ventilator anesthesia machine etc,Traffic Fire Protection Equipment Security equipment,Industrial
• Similar models:Timken RNA6903 KOYO RNA6903 NBS RNA6903 NTN NA6903R IKO RNA6903U INA NA6903 INA NA6903-XL SKF NA6903 JNS NA6903 ISO NA6903
• BEARING POWER International Trading Co.,Ltd. specialize in NA6903 products，there is large inventory of KOYO NA6903 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the NA6903 Which KOYO NA6903 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
  240/710-K30-MB-W33	710	1030	315	NKE	Spherical Roller Bearings
  23064-K-MB	320	480	121	FAG	Spherical Roller Bearings
  238/800-B-MB	800	980	136	FAG	Spherical Roller Bearings
  33287/33462	73,025	117,475	30,162	CX	Tapered Roller Bearings
  3878/3820	36,512	85,725	30,162	ISO	Tapered Roller Bearings
  5306W	30	72	30,17	Timken	Angular Contact Ball Bearings
  6008ZZ	40	68	15	FBJ	Deep Groove Ball Bearings
  7306 BEGAM	72	30	19	SKF	Angular Contact Ball Bearings
  F624	4	13	5	FBJ	Deep Groove Ball Bearings
  GEZH 308 ES-2RS	149,225	88,9	90,424	SKF	Plain Bearings
  LMEF8UU	8	16		Samick	Linear Bearings
  NA4900R	10	22	13	NTN	Needle Roller Bearings
  NJF2312 V	60	130	46	CX	Cylindrical Roller Bearings
  NP537150/Y32008XM	41	68	19	Timken	Tapered Roller Bearings
  RLS7-2RS	22,225	50,8	14,288	ZEN	Deep Groove Ball Bearings
  SSL-1470ZZ	7	14	5	NMB	DEEP GROOVE BALL BEARINGS
  NJ2217E	85	150	36	STEYR	CYLINDRICAL ROLLER BEARINGS
  6007.2ZNR	35	62	14	SKF	DEEP GROOVE BALL BEARINGS
  FPAA300	3.0000	3.5000	.2500	SKF	ANGULAR CONTACT BALL BEARINGS
  NUP-228E	140	250	42	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS