MF84 Flanged Ball Bearing (Flange Bearing), F and MF series

For a 4 mm shaft and an 8 mm housing bore, the MF84 flanged ball bearing (F and MF series) is 2 mm wide. Modeled as simplified STEP files. Its flange is 9.2 mm across and 0.6 mm thick.

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

• Also searched as: MF84 bearing
• Model id: bearings-miniature-flanged-mf84
• Standard: F and MF series · size MF84

Files

Part key	Simplified
bearings-miniature-flanged-mf84	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		4		4	nominal	L1
D	Outside diameter		8		8	nominal	L1
B	Width		2		2	nominal	L1
r	Chamfer dimension	0.1			0.1	single limit (min), modeled at the limit	L1
D1	Flange diameter		9.2		9.2	nominal	L1
C1	Flange width		0.6		0.6	nominal	L1

Drawing

As a PDF: CC-BRG-MINI-FL-SZ-MF84.pdf.

The MF84 flanged ball bearing beside the MF74 and the F684

The MF84 is number 10 of the 39 F and MF series flanged ball bearings published here, listed from F682 to F689.

• Bore diameter (d): 4 mm on the MF84 flanged ball bearing, the same on the MF74 and the F684.
• Outside diameter (D): 8 mm on the MF84 flanged ball bearing, against 7 mm on the MF74 and 9 mm on the F684.
• Width (B): 2 mm on the MF84 flanged ball bearing, against 2 mm on the MF74 and 2.5 mm on the F684.
• Chamfer dimension (r): at least 0.1 mm on the MF84 flanged ball bearing, against at least 0.08 mm on the MF74 and at least 0.1 mm on the F684.
• Flange diameter (D1): 9.2 mm on the MF84 flanged ball bearing, against 8.2 mm on the MF74 and 10.3 mm on the F684.
• Flange width (C1): 0.6 mm on the MF84 flanged ball bearing, the same on the MF74 and the F684.

The MF84 flanged ball bearing in its other versions

• MF84-2Z Flanged Ball Bearing (Flange Bearing), Shielded, F and MF series: width 3 mm.
• MF84-2RS Flanged Ball Bearing (Flange Bearing), Sealed, F and MF series: width 3 mm.

Other sizes

• One size smaller: MF74 Flanged Ball Bearing (Flange Bearing), F and MF series, 4 mm bore, 7 mm OD, 2 mm wide, 8.2 mm flange.
• One size larger: F684 Flanged Ball Bearing (Flange Bearing), F and MF series, 4 mm bore, 9 mm OD, 2.5 mm wide, 10.3 mm flange.

Documents

• CC-BRG-MINI-FL-DS-MF84.pdf: MF84 datasheet: values with levels, sources
• CC-BRG-MINI-FL-SZ-MF84.pdf: MF84 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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