DIN 6881

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Dimensions in mm - source Din 6881 1956
key width b h9	8	10	12	14	16	18	20	22	25	28	32	36
key heigth h nom	3.5	4	4	4.5	5	5	6	7	7	7.5	8.5	9
for shaft diameters d (over÷to)	22÷30	30÷38	38÷44	44÷50	50÷58	58÷65	65÷75	75÷85	85÷95	95÷110	110÷130	130÷150
groove width b D 10
radius r1
groove depth t2

Din 6881 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial items
key width b	8	10	12	14	16	18	20	22	25	28	32	36
key heigth h	3.5	4	4	4.5	5	5	6	7	7	7.5	8.5	9
nominal length l
20	4.65
22	5.10
25
28
32
36
40
45
50
56
63
70
80
90
100
110
125
140
160
180
200
220
250
280
315
355
400

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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Standard DIN 6881