An 8-pitch pinion with 18 teeth mates with a gear having 64 teeth. The pinion rotates at 2450 rpm. Compute the following: a. Center distance b. Velocity ratio c. Speed of gear d. Pitch line speed

A pinion and gear are running in mesh. The gear pair has a diametral pitch of 6. has 24 teeth, what is the corresponding pitch diameter of the pinion? 2 in (A) (B) (C) 3 in 4 in (D) 5 in (E) 6 in

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A spur gear set is cut with a hob. The spur gears have a pressure angle of 20 degrees and a diametral pitch of 16 teeth/inch. The pinion has 32 teeth while the gear has 80. The customer wants to replace the spur gear set with a custom helical gear set. The only requirements are: (1) the same hob must be used (2) the gear set center distance must remain the same (3) the gear ratio must remain the same. The designer has decided to use a helical pinion with 28 teeth. For the helical gear set, select the proper helix angle that will guarantee the three requirements. Report your answer in degrees, 3 decimal places.