Well lets hear about it, I have some dought that this is possible.
There are two kinds of frictions in a power transmission rolling and
sliding friction where rolling is clearly the lower and better.
A wormdrive is the worst of all with the sliding friction been the
dominant part of transmission.
Reduceing clearance or even preloading would significantly increase
the friction produced.
One way could see this happening is with the large wheel having
roller bearings with radiused running surface mounted perpendicular
to the shaft instead of the teeth.
Each Tooth would be replaced by two bearings slightly offset one making
contact with front the other back side.
The bearings would need to be very small in order to be able to have
tree teeth of the worm engaded at all times.
The precision involved in making this would be outside of the abilitys
of most hobby shops and likely be expensive as a industial product.
Unless its mass produced of course. |