Three styles of bearings
are availalbe. All bearings are custom made::
Fitted altitude bearings
are for telescopes typically up to 10 inches, in tubes,
where the supports on the altitude bearings are cut
to fit the curve of the tube. Fitted altitude bearings
can be made in any size.
Flat sided altitude
Flat sided altitude bearings
fit flat against square or rectangular mirror boxes,
typically found on 12 inch or larger telescopes.
Altitude bearings designed
for the rings on equatorially mounted newtonians, allowing
use on a Dobsonian mount.
Altitude bearings for existing rings are for appilcations
where someone wants to use their equatorially mounted
telescope on a Dobsonian mount. The altitude bearings
are designed to use the existing mounting holes on the
Also available is a "fix"
allowing owners of Dobsonians with small altitude bearings
to add larger bearings for finer control and sure balance
without the need to modify their existing mount by cutting
it. E-mail for more info.
You're better off with
larger bearings that provides finer altitude control
and eliminates balance problems when changing eyepieces.
Small fitted bearings are
available up to 11.875"diameter with 11.5"
bearing surface - as shown above. Without a lip, up
at 11.875 bearing surface.
Fitted bearing supports are custom CNC cut to precisely
fit the outside diameter of your tube. Large fitted
altitude bearings from 12" to 23".
Contact us for quotes on
larger than 23". Above right photo is a 23"
bearing for a 12" tube.
Bearings are offered with
or without a 1/8" wide by 3/16" tall outer
lip. The lip helps prevent lateral shift on your mount.
Bearings are available
as a kit or assembled and finished.
Finished Altitude Bearings:
Arrive ready to use. Can be shipped to most countries.