Parallel Key Dimensions (DIN 6885)

Inputs

Enter shaft diameter (mm):

Select a key size and length:

For shaft diameter d1, see also:
ISO Fits and Tolerances
Simple Shaft Design

Technical Drawing:

d1 (shaft and hub)	-
w (on key)	-
w (on shaft)	-
w (on hub)	-
h (on key)	-
t1 (on shaft)	-
t2 (on hub)	-
l (on shaft)	-
l (on key)	-
sh min (on shaft)	-
sh max (on hub)	-

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Frequently Asked Questions

What does the DIN 6885 Parallel Key Calculator do?

It calculates DIN 6885 parallel key and keyway dimensions from shaft diameter, including key width, height, keyway depths, tolerance fits, and applicable key length ranges.

How do I use it?

Enter the shaft diameter, then select a listed key size. The calculator returns the corresponding DIN 6885 dimensions, fits, and standard length range.

Is it free?

Yes. This Kod5 calculator runs in the browser, requires no installation, and is free to use.