3 mm Shaft Collar (Set Collar), Form A (Set-screw Hole), DIN 705

The 3 mm shaft collar (DIN 705, form A, set-screw hole) locks onto a 3 mm shaft with an M2 set-screw hole; it is 7 mm across and 5 mm wide. Get it as simplified and threaded STEP files.

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

• Also searched as: 3 mm collar
• Model id: din705-a-d3
• Standard: DIN 705:2019 · size 3 mm

Files

Part key	Simplified	Threaded
din705-a-d3	STEP	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d1	Bore diameter		3		3	nominal	L1
d2	Outside diameter		7		7	nominal	L1
b	Width		5		5	nominal	L1
d3	Set-screw thread		2		2	nominal	L1
l_s	Set-screw length		3		3	nominal	L1

Drawing

As a PDF: CC-DIN705-SZ-3.pdf.

The 3 mm form A shaft collar beside the 4 mm

The 3 mm is the smallest of the 11 DIN 705 shaft collars published here, from 3 mm to 20 mm.

• Bore diameter (d1): 3 mm on the 3 mm form A shaft collar, against 4 mm on the 4 mm.
• Outside diameter (d2): 7 mm on the 3 mm form A shaft collar, against 8 mm on the 4 mm.
• Width (b): 5 mm on the 3 mm form A shaft collar, the same on the 4 mm.
• Set-screw thread (d3): 2 mm on the 3 mm form A shaft collar, against 2.5 mm on the 4 mm.
• Set-screw length (l_s): 3 mm on the 3 mm form A shaft collar, the same on the 4 mm.

Other sizes

• One size larger: 4 mm Shaft Collar (Set Collar), Form A (Set-screw Hole), DIN 705, 4 mm bore, 8 mm OD, 5 mm wide, M2.5 set screw.

Documents

• CC-DIN705-DS-3.pdf: 3 datasheet: values with levels, sources
• CC-DIN705-SZ-3.pdf: 3 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

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

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