F688 Flanged Ball Bearing (Flange Bearing), F and MF series

For an 8 mm shaft and a 16 mm housing bore, the F688 flanged ball bearing (F and MF series) is 4 mm wide. Modeled as simplified STEP files. Its flange is 18 mm across and 1 mm thick.

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

• Also searched as: F688 bearing
• Model id: bearings-miniature-flanged-f688
• Standard: F and MF series · size F688

Files

Part key	Simplified
bearings-miniature-flanged-f688	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		8		8	nominal	L1
D	Outside diameter		16		16	nominal	L1
B	Width		4		4	nominal	L1
r	Chamfer dimension	0.2			0.2	single limit (min), modeled at the limit	L1
D1	Flange diameter		18		18	nominal	L1
C1	Flange width		1		1	nominal	L1

Drawing

As a PDF: CC-BRG-MINI-FL-SZ-F688.pdf.

The F688 flanged ball bearing beside the MF148 and the F698

The F688 is number 36 of the 39 F and MF series flanged ball bearings published here, listed from F682 to F689.

• Bore diameter (d): 8 mm on the F688 flanged ball bearing, the same on the MF148 and the F698.
• Outside diameter (D): 16 mm on the F688 flanged ball bearing, against 14 mm on the MF148 and 19 mm on the F698.
• Width (B): 4 mm on the F688 flanged ball bearing, against 3.5 mm on the MF148 and 6 mm on the F698.
• Chamfer dimension (r): at least 0.2 mm on the F688 flanged ball bearing, against at least 0.15 mm on the MF148 and at least 0.3 mm on the F698.
• Flange diameter (D1): 18 mm on the F688 flanged ball bearing, against 15.6 mm on the MF148 and 22 mm on the F698.
• Flange width (C1): 1 mm on the F688 flanged ball bearing, against 0.8 mm on the MF148 and 1.5 mm on the F698.

Other sizes

• One size smaller: MF148 Flanged Ball Bearing (Flange Bearing), F and MF series, 8 mm bore, 14 mm OD, 3.5 mm wide, 15.6 mm flange.
• One size larger: F698 Flanged Ball Bearing (Flange Bearing), F and MF series, 8 mm bore, 19 mm OD, 6 mm wide, 22 mm flange.

Documents

• CC-BRG-MINI-FL-DS-F688.pdf: F688 datasheet: values with levels, sources
• CC-BRG-MINI-FL-SZ-F688.pdf: F688 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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