6x6 Parallel Key (Feather Key), Form B, DIN 6885

The 6x6 parallel key (DIN 6885, form B): key width 6 mm, key height 6 mm, edge chamfer 0.25 to 0.4 mm. Available as 15 lengths from 14 to 70 mm, each as simplified STEP.

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

• Also searched as: 6x6 key, 6x6 x 14 to 6x6 x 70 keys
• Model id: din6885-b-6x6
• Standard: DIN 6885:2021 · size 6x6

Lengths

Length (mm)	Part key	Simplified
14	din6885-b-6x6x14	STEP
16	din6885-b-6x6x16	STEP
18	din6885-b-6x6x18	STEP
20	din6885-b-6x6x20	STEP
22	din6885-b-6x6x22	STEP
25	din6885-b-6x6x25	STEP
28	din6885-b-6x6x28	STEP
32	din6885-b-6x6x32	STEP
36	din6885-b-6x6x36	STEP
40	din6885-b-6x6x40	STEP
45	din6885-b-6x6x45	STEP
50	din6885-b-6x6x50	STEP
56	din6885-b-6x6x56	STEP
63	din6885-b-6x6x63	STEP
70	din6885-b-6x6x70	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
b	Key width	5.97	6	6	5.985	midpoint of min–max	L1
h	Key height	5.97	6	6	5.985	midpoint of min–max	L1
s	Edge chamfer	0.25		0.4	0.325	midpoint of min–max	L1
d_shaft	Shaft diameter range	17		22	19.5	midpoint of min–max	L1
t1	Shaft keyway depth		3.5		3.5	nominal	L1
t2	Hub keyway depth		2.8		2.8	nominal	L1

Drawing

As a PDF: CC-DIN6885-SZ-6x6.pdf.

The 6x6 form B parallel key beside the 5x5

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

• Key width (b): 6 mm on the 6x6 form B parallel key, against 5 mm on the 5x5.
• Key height (h): 6 mm on the 6x6 form B parallel key, against 5 mm on the 5x5.
• Edge chamfer (s): 0.25 to 0.4 mm on the 6x6 form B parallel key, the same on the 5x5.
• Shaft diameter range (d_shaft): 17 to 22 mm on the 6x6 form B parallel key, against 12 to 17 mm on the 5x5.
• Shaft keyway depth (t1): 3.5 mm on the 6x6 form B parallel key, against 3 mm on the 5x5.
• Hub keyway depth (t2): 2.8 mm on the 6x6 form B parallel key, against 2.3 mm on the 5x5.

The 6x6 form B parallel key in its other forms

• 6x6 Parallel Key (Feather Key), Form A, DIN 6885, with the same values.
• 6x6 Parallel Key (Feather Key), Form AB, DIN 6885, with the same values.

Other sizes

• One size smaller: 5x5 Parallel Key (Feather Key), Form B, DIN 6885.

Documents

• CC-DIN6885-DS-6x6.pdf: 6x6 datasheet: values with levels, lengths, sources
• CC-DIN6885-SZ-6x6.pdf: 6x6 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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