F684 Flanged Ball Bearing (Flange Bearing), F and MF series

The F684 flanged ball bearing (F and MF series) has a 4 mm bore, a 9 mm outside diameter and a width of 2.5 mm. Get it as simplified STEP files. Its flange is 10.3 mm across and 0.6 mm thick.

How these parts are made, and what the levels mean: read the method

• Also searched as: F684 bearing
• Model id: bearings-miniature-flanged-f684
• Standard: F and MF series · size F684

Files

Part key	Simplified
bearings-miniature-flanged-f684	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		4		4	nominal	L1
D	Outside diameter		9		9	nominal	L1
B	Width		2.5		2.5	nominal	L1
r	Chamfer dimension	0.1			0.1	single limit (min), modeled at the limit	L1
D1	Flange diameter		10.3		10.3	nominal	L1
C1	Flange width		0.6		0.6	nominal	L1

Drawing

As a PDF: CC-BRG-MINI-FL-SZ-F684.pdf.

The F684 flanged ball bearing beside the MF84 and the F694

The F684 is number 11 of the 39 F and MF series flanged ball bearings published here, listed from F682 to F689.

• Bore diameter (d): 4 mm on the F684 flanged ball bearing, the same on the MF84 and the F694.
• Outside diameter (D): 9 mm on the F684 flanged ball bearing, against 8 mm on the MF84 and 11 mm on the F694.
• Width (B): 2.5 mm on the F684 flanged ball bearing, against 2 mm on the MF84 and 4 mm on the F694.
• Chamfer dimension (r): at least 0.1 mm on the F684 flanged ball bearing, against at least 0.1 mm on the MF84 and at least 0.15 mm on the F694.
• Flange diameter (D1): 10.3 mm on the F684 flanged ball bearing, against 9.2 mm on the MF84 and 12.5 mm on the F694.
• Flange width (C1): 0.6 mm on the F684 flanged ball bearing, against 0.6 mm on the MF84 and 1 mm on the F694.

The F684 flanged ball bearing in its other versions

• F684-2Z Flanged Ball Bearing (Flange Bearing), Shielded, F and MF series: width 4 mm, flange width 1 mm.
• F684-2RS Flanged Ball Bearing (Flange Bearing), Sealed, F and MF series: width 4 mm, flange width 1 mm.

Other sizes

• One size smaller: MF84 Flanged Ball Bearing (Flange Bearing), F and MF series, 4 mm bore, 8 mm OD, 2 mm wide, 9.2 mm flange.
• One size larger: F694 Flanged Ball Bearing (Flange Bearing), F and MF series, 4 mm bore, 11 mm OD, 4 mm wide, 12.5 mm flange.

Documents

• CC-BRG-MINI-FL-DS-F684.pdf: F684 datasheet: values with levels, sources
• CC-BRG-MINI-FL-SZ-F684.pdf: F684 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

nmb-miniature-flanged, nsk-miniature-flanged. Full citations: the method page and this size's datasheet.

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