For a given pair of mating gear, arc of contact is 6mm and a circular pitch is 4 mm. Contact ratio is equal to
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Hobbing process is also used for which of the following application?
Hobbing is a special type of which of the following?
In the process of gear cutting by hobbing, the angle between the hob’s spindle axis and the workpiece’s spindle axis is fixed.
For spur gear manufacturing, angle between the hob’s spindle axis and the workpiece’s spindle axis should be equal to____
For helical gears, the angle between hob’s spindle axis and workpiece’s spindle axis must be _____ as the helix angle of the helical gear.
Hobbing machines are characterised by _____
5in (125 mm) capacity machine can generate gears upto_____ pitch diameter.
The gear hob is a formed tooth milling cutter with helical teeth.
As the number of threads on the hob increases, it’s accuracy_____
As the number of threads on the hob increases, production rate______
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