Minimum number of teeth for involute rack and pinion arrangement for pressure angle if 200 is
For a single reduction spur gear, the gear ratio is 10 to 1 and the center distance is 330 mm. The nearest standard module if no interference is to occur, will be
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For helical gears, the helix angle generally ranges from
For helical gears, the circular pitch Pc, the normal pitch Pn and the helix angle a are related by the identity
Consider the following statements:
1. A stub both has working depth larger than that of a full depth tooth.
2. The path of contact for involute gears is an arc of a circle.
Which of these statements is/are correct?
The ends of gears are made slightly thinner (crowning). This is done
The maximum efficiency of worm and worm wheel system is
where φ is the friction angle
If D is pitch circle diameter and T is the number of teeth then its circular pitch is