MF85-2RS Flanged Ball Bearing (Flange Bearing), Sealed, F and MF series

The MF85-2RS flanged ball bearing (F and MF series, sealed) has a 5 mm bore, an 8 mm outside diameter and a width of 2.5 mm. Get it as simplified STEP files. Its flange is 9.2 mm across and 0.6 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: MF85-2RS bearing
• Model id: bearings-miniature-flanged-mf85-2rs
• Standard: F and MF series · size MF85

Files

Part key	Simplified
bearings-miniature-flanged-mf85-2rs	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		5		5	nominal	L1
D	Outside diameter		8		8	nominal	L1
B	Width		2.5		2.5	nominal	L1
r	Chamfer dimension	0.08			0.08	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-MF85.pdf.

The MF85-2RS flanged ball bearing beside the F634-2RS and the MF95-2RS

The MF85-2RS is number 15 of the 26 F and MF series flanged ball bearings published here, listed from F682-2RS to F698-2RS.

• Bore diameter (d): 5 mm on the MF85-2RS flanged ball bearing, against 4 mm on the F634-2RS and 5 mm on the MF95-2RS.
• Outside diameter (D): 8 mm on the MF85-2RS flanged ball bearing, against 16 mm on the F634-2RS and 9 mm on the MF95-2RS.
• Width (B): 2.5 mm on the MF85-2RS flanged ball bearing, against 5 mm on the F634-2RS and 3 mm on the MF95-2RS.
• Chamfer dimension (r): at least 0.08 mm on the MF85-2RS flanged ball bearing, against at least 0.3 mm on the F634-2RS and at least 0.1 mm on the MF95-2RS.
• Flange diameter (D1): 9.2 mm on the MF85-2RS flanged ball bearing, against 18 mm on the F634-2RS and 10.2 mm on the MF95-2RS.
• Flange width (C1): 0.6 mm on the MF85-2RS flanged ball bearing, against 1 mm on the F634-2RS and 0.6 mm on the MF95-2RS.

The MF85-2RS flanged ball bearing in its other versions

• MF85 Flanged Ball Bearing (Flange Bearing), F and MF series: width 2 mm.
• MF85-2Z Flanged Ball Bearing (Flange Bearing), Shielded, F and MF series, with the same values.

Other sizes

• One size smaller: F634-2RS Flanged Ball Bearing (Flange Bearing), Sealed, F and MF series, 4 mm bore, 16 mm OD, 5 mm wide, 18 mm flange.
• One size larger: MF95-2RS Flanged Ball Bearing (Flange Bearing), Sealed, F and MF series, 5 mm bore, 9 mm OD, 3 mm wide, 10.2 mm flange.

Documents

• CC-BRG-MINI-FL-DS-MF85.pdf: MF85 datasheet: values with levels, sources
• CC-BRG-MINI-FL-SZ-MF85.pdf: MF85 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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