Tangential keys and Tangential Keyways for Constant Loads
The present Standard corresponds in subatanct to the ISO Draft
lSO/DIS 3117-1973
Tagential keying
Clavetage par clavettes tangentielles
As compared with the April 1924 lssue of DIN 271, the following amendments and additions should be noted:
a) The shaft diameters were partly changed to conform to ISO Recommendation B 775 and also to correspond to DIN 748 Part 1.
b) While existing cross-sections of keys and keyways have been retained, changes have in some cases been made in the slope of the keys and in the rounding of the bottom of the keyways.
c) Shaft diameters above 630 mm have been omitted. Should it be necessary, however, tangential keys and keyways for larger shaft diameters can be determined from the formulae quoted.
d) The contents of the Standard have been revised and supplemented, e.g., by the inclusion or an example of designation and details of materials.
