d - 4 mm

D - 9 mm

B - 2,5 mm

C - 2,5 mm

r min. - 0,15 mm

r1 min. - 0,15 mm

C1 - 0,6 mm

D1 - 10,3 mm

D2 - 10,3 mm

ba min. - 5,2 mm

ra max. - 0,1 mm

C2 - 1 mm

Weight - 0,0007 Kg

Basic dynamic load rating (C) - 0,64 kN

Basic static load rating (C0) - 0,23 kN

(Grease) Lubrication Speed - 59000 r/min

(Oil) Lubrication Speed - 70000 r/min

Calculation factor (f0) - 12,8

• Model Number:F684
• Inner Diameter：4mm Outer Diameter：9mm Width：2,5mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-09
• Application:Medium and large motor,Sensors,pump accessories,equipment,tooth filling,clean stationery,Infrared Technology,outdoor equipment,tray industry,Power equipment,natural instruments
• Similar models:NSK 6844 CYSD 6844N FBJ 684 CYSD 6844 CYSD 6840-ZZ CYSD 6844-RZ CYSD 6848-RZ KOYO 306840 NTN W684ASSA NTN 6840
• BEARING POWER International Trading Co.,Ltd. specialize in F684 products，there is large inventory of KOYO F684 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the F684 Which KOYO F684 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.

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  53405	25	60	26,4	KOYO	Thrust Ball Bearings
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  89418	90	190		ISO	Thrust Roller Bearings
  BXRE307-2RSR	35	80	21	INA	Needle Roller Bearings
  K45X53X20H	45	53		Timken	Needle Roller Bearings
  LM272235/LM272210	457,2	615,95	85,725	ISB	Tapered Roller Bearings
  N210	50	90	20	AST	Cylindrical Roller Bearings
  SI 80 ES 2RS	80	120	55	ISB	Plain Bearings
  B3	3	8	3.5	ADR	THRUST BALL BEARINGS
  H309	45	65		FAG	ADAPTERS
  90BT395	9.0000	16.6250		American	THRUST BALL BEARINGS
  61905	25	42	9	FAG	DEEP GROOVE BALL BEARINGS
  SAF634	5.9375			Torrington	PILLOW BLOCKS
  71814TGP/4	70	90	10	CONSOLIDATED	ANGULAR CONTACT BALL BEARINGS
  K-75x81x20	75	81	20	CONSOLIDATED	NEEDLE BEARINGS