1/10th of revolution
1/20th of revolution
1/25th of revolution
1/40th of revolution
The gear ratio between worm and worm wheel in a dividing head is 50 :1
Worm shaft of the dividing head has single start worm
20 turns of index crank revolve the spindle through 180 Degree
For rapid indexing, the worm and worm wheel are to be disengaged
5, 10, 15 holes respectively
10, 20, 30 holes respectively
24, 30, 36 holes respectively
20, 40, 60 holes respectively
9 Degree
18 Degree
40 Degree
45 Degree
Vertical milling machine
Plain milling machine
Bed type milling machine
Planer type milling machine