2x2 Parallel Key (Feather Key), Form AB, DIN 6885

The 2x2 parallel key (DIN 6885, form AB): key width 2 mm, key height 2 mm, edge chamfer 0.16 to 0.25 mm. Available as 8 lengths from 6 to 20 mm, each as simplified STEP.

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

• Also searched as: 2x2 key, 2x2 x 6 to 2x2 x 20 keys
• Model id: din6885-ab-2x2
• Standard: DIN 6885:2021 · size 2x2

Lengths

Length (mm)	Part key	Simplified
6	din6885-ab-2x2x6	STEP
8	din6885-ab-2x2x8	STEP
10	din6885-ab-2x2x10	STEP
12	din6885-ab-2x2x12	STEP
14	din6885-ab-2x2x14	STEP
16	din6885-ab-2x2x16	STEP
18	din6885-ab-2x2x18	STEP
20	din6885-ab-2x2x20	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
b	Key width	1.975	2	2	1.9875	midpoint of min–max	L1
h	Key height	1.975	2	2	1.9875	midpoint of min–max	L1
s	Edge chamfer	0.16		0.25	0.205	midpoint of min–max	L1
d_shaft	Shaft diameter range	6		8	7	midpoint of min–max	L1
t1	Shaft keyway depth		1.2		1.2	nominal	L1
t2	Hub keyway depth		1		1	nominal	L1

Drawing

As a PDF: CC-DIN6885-SZ-2x2.pdf.

The 2x2 form AB parallel key beside the 3x3

The 2x2 is the first of the 5 DIN 6885 parallel keys published here, listed from 2x2 to 6x6.

• Key width (b): 2 mm on the 2x2 form AB parallel key, against 3 mm on the 3x3.
• Key height (h): 2 mm on the 2x2 form AB parallel key, against 3 mm on the 3x3.
• Edge chamfer (s): 0.16 to 0.25 mm on the 2x2 form AB parallel key, the same on the 3x3.
• Shaft diameter range (d_shaft): 6 to 8 mm on the 2x2 form AB parallel key, against 8 to 10 mm on the 3x3.
• Shaft keyway depth (t1): 1.2 mm on the 2x2 form AB parallel key, against 1.8 mm on the 3x3.
• Hub keyway depth (t2): 1 mm on the 2x2 form AB parallel key, against 1.4 mm on the 3x3.

The 2x2 form AB parallel key in its other forms

• 2x2 Parallel Key (Feather Key), Form A, DIN 6885, with the same values.
• 2x2 Parallel Key (Feather Key), Form B, DIN 6885, with the same values.

Other sizes

• One size larger: 3x3 Parallel Key (Feather Key), Form AB, DIN 6885.

Documents

• CC-DIN6885-DS-2x2.pdf: 2x2 datasheet: values with levels, lengths, sources
• CC-DIN6885-SZ-2x2.pdf: 2x2 drawing: this size's values on the views
• parts.json: the part record of every length (the platform contract)

Sources

fasten-it-din6885-1, fasten-it-uni6604, mikipulley-jis-b1301, roymech-din6885. Full citations: the method page and this size's datasheet.

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