[TheForge] Weather vanes/Wind Sculptures

[Andy Vida]

Dave Brown wrote:

> A more traditional and mostly maintenance free approach is to use a
> spindle, tube, and ONE ball bearing.  The central shaft for the vane
> can be any size and thickness of tubing or pipe.  You need ONE ball
> bearing,

	A word about these.  In order to give good life, the bearing
	should be very much on dead center lest there be excessive
	rubbing as the vane turns.




                                     |     |
                                     |     |
                                     |     |
                                     |     |
                                     |     |
                            _________|     |_________
                           |  _______|     |_______  |<- cap for dirt
                           | |  ____ |     | ____  | |   and moisture
                           | | | __X||     ||X__ | | |
                           | | ||    |     |    || | |
                           | | ||    |     |    || | |
                           |_| ||    |     |    || |_|
                               ||    |     |    ||
                               ||    |     |    ||
                               ||    |     |    ||<- fill with grease
                               ||    |     |    ||
                               ||    |_____|    || <- can have lower
                               ||    |ZZZZZ|    ||    radial bearing
                               ||_______O_______||    if needed
                               |        V        |
                               |_________________|

'X' == radial bearing
'O' == thrust bearing
'V' == Centering depression
'Z' == Hard face, must be smooth & flat