8 mm Shaft Collar (Set Collar), Form B (Taper-pin Hole), DIN 705

The 8 mm shaft collar (DIN 705, form B, taper-pin hole) locks onto an 8 mm shaft with a 2 mm hole for a taper pin, reamed with the shaft; it is 16 mm across and 8 mm wide. Get it as simplified STEP files.

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

• Also searched as: 8 mm collar
• Model id: din705-b-d8
• Standard: DIN 705:2019 · size 8 mm

Files

Part key	Simplified
din705-b-d8	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d1	Bore diameter		8		8	nominal	L1
d2	Outside diameter		16		16	nominal	L1
b	Width		8		8	nominal	L1
d4	Taper-pin diameter		2		2	nominal	L1

Drawing

As a PDF: CC-DIN705-SZ-8.pdf.

The 8 mm form B shaft collar beside the 6 mm and the 10 mm

The 8 mm is number 4, counting from the smallest, of the 10 DIN 705 shaft collars published here, from 4 mm to 20 mm.

• Bore diameter (d1): 8 mm on the 8 mm form B shaft collar, against 6 mm on the 6 mm and 10 mm on the 10 mm.
• Outside diameter (d2): 16 mm on the 8 mm form B shaft collar, against 12 mm on the 6 mm and 20 mm on the 10 mm.
• Width (b): 8 mm on the 8 mm form B shaft collar, against 8 mm on the 6 mm and 10 mm on the 10 mm.
• Taper-pin diameter (d4): 2 mm on the 8 mm form B shaft collar, against 1.5 mm on the 6 mm and 3 mm on the 10 mm.

The 8 mm form B shaft collar in its other forms

• 8 mm Shaft Collar (Set Collar), Form A (Set-screw Hole), DIN 705: set-screw thread 4 mm, set-screw length 6 mm, no taper-pin diameter (d4).

Other sizes

• One size smaller: 6 mm Shaft Collar (Set Collar), Form B (Taper-pin Hole), DIN 705, 6 mm bore, 12 mm OD, 8 mm wide, 1.5 mm pin hole.
• One size larger: 10 mm Shaft Collar (Set Collar), Form B (Taper-pin Hole), DIN 705, 10 mm bore, 20 mm OD, 10 mm wide, 3 mm pin hole.

Documents

• CC-DIN705-DS-8.pdf: 8 datasheet: values with levels, sources
• CC-DIN705-SZ-8.pdf: 8 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

dinmark-din705, dinmark-din705-b, fasten-it-din705, fasten-it-din705-b, maedler-din705. Full citations: the method page and this size's datasheet.

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