Q:
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.
Answer & Explanation
Answer: A) increased by the same amount
Explanation: For manufacturing the helical gear, one has to consider helix angle of the gear. While hobbing the helical gear, angle between hob spindle axis and workpiece spindle axis should be increased by an angle equal to helix angle of the gear.
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