For spur gear manufacturing, angle between the hob’s spindle axis and the workpiece’s spindle axis should be equal to____

• A. (helix angle of the hob)/2b) 2*(helix angle of the hob)c) (helix angle of the hob)d) (helix angle of the ho
• B. /2b) 2*(helix angle of the hob)
• C. (helix angle of the hob)
• D. (helix angle of the hob)2