
Specification for fine pitch gears. Bevel gears.
NORMA vydaná dňa 24.1.1952
Designation standards: BS 978-3:1952
Publication date standards: 24.1.1952
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: British technical standard
Kategória: Technické normy BS
Form, proportions of machine cut conical gears connecting intersecting shafts in pitch range 20 to 80 D.P. Straight or curved teeth with normal pressure angle 20 at pitch cone. Addendum modification, permissible errors and tolerances for Class A, Class B gears. Status: Confirmed