F684-2RS Flanged Ball Bearing (Flange Bearing), Sealed, F and MF series

The F684-2RS flanged ball bearing (F and MF series, sealed) has a 4 mm bore, a 9 mm outside diameter and a width of 4 mm. Get it as simplified STEP files. Its flange is 10.3 mm across and 1 mm thick. Width as the shielded bearing; sealed row not listed by the sources.

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

• Also searched as: F684-2RS bearing
• Model id: bearings-miniature-flanged-f684-2rs
• Standard: F and MF series · size F684

Files

Part key	Simplified
bearings-miniature-flanged-f684-2rs	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		4		4	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		1		1	nominal	L1

Drawing

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

The F684-2RS flanged ball bearing beside the MF84-2RS and the MF104-2RS

The F684-2RS is number 9 of the 26 F and MF series flanged ball bearings published here, listed from F682-2RS to F698-2RS.

• Bore diameter (d): 4 mm on the F684-2RS flanged ball bearing, the same on the MF84-2RS and the MF104-2RS.
• Outside diameter (D): 9 mm on the F684-2RS flanged ball bearing, against 8 mm on the MF84-2RS and 10 mm on the MF104-2RS.
• Width (B): 4 mm on the F684-2RS flanged ball bearing, against 3 mm on the MF84-2RS and 4 mm on the MF104-2RS.
• Chamfer dimension (r): at least 0.1 mm on the F684-2RS flanged ball bearing, against at least 0.1 mm on the MF84-2RS and at least 0.15 mm on the MF104-2RS.
• Flange diameter (D1): 10.3 mm on the F684-2RS flanged ball bearing, against 9.2 mm on the MF84-2RS and 11.6 mm on the MF104-2RS.
• Flange width (C1): 1 mm on the F684-2RS flanged ball bearing, against 0.6 mm on the MF84-2RS and 0.8 mm on the MF104-2RS.

The F684-2RS flanged ball bearing in its other versions

• F684 Flanged Ball Bearing (Flange Bearing), F and MF series: width 2.5 mm, flange width 0.6 mm.
• F684-2Z Flanged Ball Bearing (Flange Bearing), Shielded, F and MF series, with the same values.

Other sizes

• One size smaller: MF84-2RS Flanged Ball Bearing (Flange Bearing), Sealed, F and MF series, 4 mm bore, 8 mm OD, 3 mm wide, 9.2 mm flange.
• One size larger: MF104-2RS Flanged Ball Bearing (Flange Bearing), Sealed, F and MF series, 4 mm bore, 10 mm OD, 4 mm wide, 11.6 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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