Fitting Teflon Bushings

[Ron Nossaman]

>Excessive friction in these centres is a major problem, IMO. In addition to
>the loss of power and heavy touch, if I recall my thermodynamics correctly
>friction translates into heat and I have some concerns about the effect of
>even slightly heated metal rods running through a precision-reamed Teflon
>bushing, especially as the assembly is exposed to the effects of gravity as
>it cools. 


Wouldn't it be nice if it worked this way? Bushings would be self sizing
because the tight ones would heat the pins enough to ease the bushings, and
the properly fitted ones wouldn't generate the required friction. Think of
all those expensive little reamers with nowhere to go. 

>John Musselwhite, RPT -  Calgary, Alberta Canada



 Ron