MF128-2Z Flanged Ball Bearing (Flange Bearing), Shielded, F and MF series

The MF128-2Z flanged ball bearing (F and MF series, shielded) has an 8 mm bore, a 12 mm outside diameter and a width of 3.5 mm. Get it as simplified STEP files. Its flange is 13.6 mm across and 0.8 mm thick.

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

• Also searched as: MF128-2Z bearing
• Model id: bearings-miniature-flanged-mf128-2z
• Standard: F and MF series · size MF128

Files

Part key	Simplified
bearings-miniature-flanged-mf128-2z	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		8		8	nominal	L1
D	Outside diameter		12		12	nominal	L1
B	Width		3.5		3.5	nominal	L1
r	Chamfer dimension	0.1			0.1	single limit (min), modeled at the limit	L1
D1	Flange diameter		13.6		13.6	nominal	L1
C1	Flange width		0.8		0.8	nominal	L1

Drawing

As a PDF: CC-BRG-MINI-FL-SZ-MF128.pdf.

The MF128-2Z flanged ball bearing beside the F607-2Z and the MF148-2Z

The MF128-2Z is number 33 of the 37 F and MF series flanged ball bearings published here, listed from F682-2Z to F689-2Z.

• Bore diameter (d): 8 mm on the MF128-2Z flanged ball bearing, against 7 mm on the F607-2Z and 8 mm on the MF148-2Z.
• Outside diameter (D): 12 mm on the MF128-2Z flanged ball bearing, against 19 mm on the F607-2Z and 14 mm on the MF148-2Z.
• Width (B): 3.5 mm on the MF128-2Z flanged ball bearing, against 6 mm on the F607-2Z and 4 mm on the MF148-2Z.
• Chamfer dimension (r): at least 0.1 mm on the MF128-2Z flanged ball bearing, against at least 0.3 mm on the F607-2Z and at least 0.15 mm on the MF148-2Z.
• Flange diameter (D1): 13.6 mm on the MF128-2Z flanged ball bearing, against 22 mm on the F607-2Z and 15.6 mm on the MF148-2Z.
• Flange width (C1): 0.8 mm on the MF128-2Z flanged ball bearing, against 1.5 mm on the F607-2Z and 0.8 mm on the MF148-2Z.

The MF128-2Z flanged ball bearing in its other versions

• MF128 Flanged Ball Bearing (Flange Bearing), F and MF series: width 2.5 mm, flange diameter 13.2 mm, flange width 0.6 mm.
• MF128-2RS Flanged Ball Bearing (Flange Bearing), Sealed, F and MF series, with the same values.

Other sizes

• One size smaller: F607-2Z Flanged Ball Bearing (Flange Bearing), Shielded, F and MF series, 7 mm bore, 19 mm OD, 6 mm wide, 22 mm flange.
• One size larger: MF148-2Z Flanged Ball Bearing (Flange Bearing), Shielded, F and MF series, 8 mm bore, 14 mm OD, 4 mm wide, 15.6 mm flange.

Documents

• CC-BRG-MINI-FL-DS-MF128.pdf: MF128 datasheet: values with levels, sources
• CC-BRG-MINI-FL-SZ-MF128.pdf: MF128 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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