A 20°, 24-tooth gear has AGMA standard full-depth involute teeth with diametral pitch of 5. Calculate the pitch diameter, circular pitch, addendum, dedendum, standard face width and base circle diameter.
1) A 20°, 24-tooth gear has AGMA standard full-depth involute teeth with diametral pitch of 5. Calculate the pitch diameter, circular pitch, addendum, dedendum, standard face width and base circle diameter.
2) Two mating internal 10-pitch, spur gears have 16 and 86 teeth. Determine the center distance.
3) Two mating external 8-pitch, 20o , spur gears have 24 and 64 teeth. Determine the contact ratio.
4) Two mating 20°, 8-pitch, spur gears have 14 and 42 teeth. Will they interfere?
5) A pair of 20°, mild-steel gears are to be selected for an application where they need to transfer 5 hp. The pinion drives at 1800 rpm and the gear must rotate as close to 480 rpm as possible. Select a set of gears to accomplish this task.
a) Determine a suitable diametral pitch and pressure angle.
b) Use the required velocity ratio to iterate and determine appropriate number of teeth (confirm that these gears are commercially available).
c) Calculate the pitch diameters and center distance.
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