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Sketch of shaft for Robust Drill Transmission
Posted by Joe Johnson.   [PICTURE: SAME | NEW | HELP]
Engineer on team #47, Chief Delphi, from Pontiac Central High School and Delphi Automotive Systems.
Posted on 1/20/2000 6:18 PM MST
Follow the link below for a sketch of a robust method of getting torque out of the business end of a drill transmission.
Some notes:
1) The length of the shaft is arbitrary, shorten it to suit your application.
2) No proper tolerances -- so shoot me ;-) Basically the only fussy dimensions involve the position of the pins for the planets and the press fit for the pins you will have to press out of the part from the transmission. Give the old part to the machinist and ask for a 'tight press fit' let him pick go from there.
3) Depending on your application you may not need the groove for the ring clip. If your application does not allow a thrust load to push the shaft toward the transmission, you may be able to get away without using it (and of course the balls that it retains).
4) The thumbnail picture below is not readable. Follow the link below the thumbnail picture to view a better picture.
Have questions, e-mail me.
Joe J.
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