[SEL] Speed limiter

Rupert Wenig rwenig at telus.net
Sun Jan 9 06:40:06 PST 2005


Hello Steve,
	Are you sure it is a speed limiter? My guess would be you were right 
the first time- a centrifical clutch. The wood shoes wouldn't last long 
if they are slipping all the time as they would be in a speed limiter.

Rupert

Steve Gray wrote:
> Hey Guys & Gals -
> 
>   I picked up a little trinket last November in the form of a speed 
> limiter for a line shaft. At first, I thought if might be an early form 
> of a centrifugal clutch until I saw how the flyballs were pinned. The 
> large pulley in the pictures would have been the driven (input) side 
> which spins the clutch drum. The clutch shoes, which are wood, are 
> mounted on the flyballs and are spring loaded against the drum. This 
> transmits the rotating motion from the input pulley to the output shaft 
> and pulley. If the speed becomes too great, the flyballs pull the clutch 
> shoes away from the drum, slowing the output. This unit has no markings 
> whatsoever other than having a lot of old red paint on it. Any idea of 
> age and maker? Pictures are at: http://www.oldengineshed.com/snapshot/. 
> I need to pour new babbitt bearings in it, but it's in excellent shape, 
> otherwise. If there's room for it, it might end up on the big display 
> trailer.
> 
> - Steve
> 




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