MR105 Miniature Ball Bearing (MR Bearing), MR series

The MR105 miniature ball bearing (MR series) has a 5 mm bore, a 10 mm outside diameter and a width of 3 mm. Get it as simplified STEP files.

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

• Also searched as: MR105 bearing
• Model id: bearings-miniature-mr105
• Standard: MR series · size MR105

Files

Part key	Simplified
bearings-miniature-mr105	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		5		5	nominal	L1
D	Outside diameter		10		10	nominal	L1
B	Width		3		3	nominal	L1
r	Chamfer dimension	0.1			0.1	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-BRG-MINI-SZ-MR105.pdf.

The MR105 miniature ball bearing beside the MR95 and the MR106

The MR105 is number 7, counting from the smallest, of the 12 MR series miniature ball bearings published here, from MR63 to MR148.

• Bore diameter (d): 5 mm on the MR105 miniature ball bearing, against 5 mm on the MR95 and 6 mm on the MR106.
• Outside diameter (D): 10 mm on the MR105 miniature ball bearing, against 9 mm on the MR95 and 10 mm on the MR106.
• Width (B): 3 mm on the MR105 miniature ball bearing, against 2.5 mm on the MR95 and 2.5 mm on the MR106.
• Chamfer dimension (r): at least 0.1 mm on the MR105 miniature ball bearing, the same on the MR95 and the MR106.

The MR105 miniature ball bearing in its other versions

• MR105-2Z Miniature Ball Bearing (MR Bearing), Shielded, MR series: width 4 mm.
• MR105-2RS Miniature Ball Bearing (MR Bearing), Sealed, MR series: width 4 mm.

Other sizes

• One size smaller: MR95 Miniature Ball Bearing (MR Bearing), MR series, 5 mm bore, 9 mm OD, 2.5 mm wide.
• One size larger: MR106 Miniature Ball Bearing (MR Bearing), MR series, 6 mm bore, 10 mm OD, 2.5 mm wide.

Documents

• CC-BRG-MINI-DS-MR105.pdf: MR105 datasheet: values with levels, sources
• CC-BRG-MINI-SZ-MR105.pdf: MR105 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

nmb-miniature, nsk-miniature. Full citations: the method page and this size's datasheet.

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