BS 4235-1 | Fasten.it

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Dimensions in mm - source BS 4235-1 Square parraller keys
Publication date: 02/1972
Shaft d nominal diameter	6 ÷ 8	8 ÷ 10	10 ÷ 12	12 ÷ 17	17 ÷ 22
section b x h
widht b nom
Shaft t1nom
Hub t2 nom
Radius max
Radius min

Dimensions in mm - source BS 4235-1 rectangular parallel keys

Publication date: 02/1972

Shaft d nominal diameter

22÷30

30÷38

38÷44

44÷50

50÷58

58÷65

65÷75

75÷85

85÷95

95÷110

110÷130

130÷150

150÷170

170÷200

200÷230

230÷260

260÷290

290÷330

330÷380

380÷440

440÷500

section b x h

widht b nom

Shaft t1nom

Hub t2 nom

Radius max

Radius min

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 BS 4235-1