Thread: Shaft Couplings
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Unread 24-06-2002, 00:45
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#0047 (ChiefDelphi)
  
Join Date: May 2001
Location: Pontiac, MI
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they are not too bad
Posted by Ken Leung at 2/12/2001 9:57 PM EST


Student on team #192, Gunn Robotics Team, from Henry M. Gunn Senior High School.


In Reply to: Shaft Couplings
Posted by Andy Grady on 2/12/2001 9:25 PM EST:



: Hello,
: Has anyone experienced problems with the special SPI made drill motor shaft couplings?
: Thanx,
: Andy Grady

So far my team never considered using those drill motor shaft coupling, because we are convinced that Dr. Joe's Drill output shaft will be much more reliable and easier to work with than this coupling.

But looking at the design of the coupling, I can only see couple ways of it failing.

1. Large load from the wheels are likely to twist the coupling so hard that it tries to spin out, and breaking the pin as it comes out.

2. Too much bending force from side load of the shaft pushing the coupling against the output shaft of the motor, forcing the coupling to split apart by stripping the thread on socket-headed screws on the side. Which mean the coupling will come off or the connection between the shaft bent.

How about telling us the problems you've been facing.


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