AS B66-1940
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Machine cut gears. C. Worm gearing
06-30-2017
01-01-1940
Applies to worm gearing, comprising correctly generated worm wheels and profile-ground worms, connecting shafts at right ancles, and having a normal pressure angle of worm thread of 20 degrees, of Classes A, B & C.
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