AstroSystems - Pivot Kit

This is one of the key components in making a Dobsonian move smoothly and easily in azimuth, even when pointed near the zenith. 
Each kit contains a 3/8" x 2.5" brass bolt, Bronze thrust bushing, stainless steel locknut assembly and full instructions.  The
new bushing only requires a 1/2" through hole.  The supplied bolt length is configured for a nominal rocker box bottom thickness
of 3/4" and a ground board thickness of 3/4" and a teflon bearing thickness of 3/16".

The 1.50" square Teflon center pad is shimmed to take part of the load off the azimuth pads, giving the telescope excellent
azimuth movement.  The pivot bolt is pre-drilled with lock screw for digital setting circles.  Optional bolt lengths available are
 2", 3" and 3.5".  Add $5 for one of these custom lengths.