CNC Manufactured AstroGoods.

New Products

Low cost standardized mounts.
Rotating rings for GEMs.
4.25" mirror cells - soon.

Primary mirror masks.

Crystal 909 bearing laminate.

  • Limited Time End Of Summer Pricing.
  • Low cost standard mounts with bearings.
  • Custom mounts to improve performance.
  • SCT and other OTAs on Dob mounts.
  • Limited Time End Of Summer Pricing.
  • 6" - 13.1" optimized to your mirror's spec.
  • Universal cells for conical/standard mirrors.

Altitude Bearings

  • Swap small bearings for large ones.
  • Small bearings fitted to your tube O.D.
  • Large bearings for tubes or mirror boxes.
  • Add bearings to Newtonian ring sets.
  • Bearing supports.

Clamshell Rings

  • Equatorial head mounting your Dob OTA.
  • Clamshell Rings and Bearings.
  • Lightweight rings for smaller telescopes.
  • Alt and Az bearing laminate strips and rings.
  • Teflon Alt and Az pads.
  • Aluminum tubes.
  • Tube end protectors.

Streetlight Baffles

  • Keep stray light away from your focuser.
  • FRP azimuth disks and rings.

Altitude Bearings
E-Mail for shipping estimates.

The Fix For Small Bearings.


Big Bearings provide smoother motion and finer incremental control than small factory bearings, while giving you secure balance without gimmicky springs or clamps. These drop-in replacements are a simple solution, in many cases just screw in the new Big Bearings and bearing supports.

E-mail us a photo of your existing bearings, we'll ask a few dimensions. Its that easy.

Big Bearings options.



Small Fitted Bearings For Tubes or Mirror Boxes.
Small bearings are up to 12" diameter. We cut the inside facing braces custom to fit your tube's outside diameter. Bearings attach using a 3/8" bolt through the center hole, clamping the curved braces to the tube.

Equatorially mounted Newtonians or SCTs can use their existing rings attach bearings for Dobsonian mounting. Available with or without supports (see supports below). Kits arrive rough sanded and assembled. Finished arrive ready to use.

Bearing options:
Bearing surface diameter?
Tube diameter, or mirror box mount?
Large Bearings For Mirror Boxes Or Big Tubes.
Bearings from 12" to 23" for mounting on flat sided mirror boxes or precisely fitting telescope tubes using inside braces shown on right (clamped to tube with 3/8" center bolt). Kits are rough sanded and assembled but not spray finished. Bearing laminate strip included. We also offer supports for bearings, as shown at left. See below.

Bearing options:
Bearing surface diameter?
Tube diameter, or mirror box mount?

Bearing Supports
Bearing supports any size from 8" to 23" bearings. Includes Teflon pads and screws. Kits come rough sanded (80 grit), finished is sprayed with red tinted water based polymer for a seal.
Bearing Supports. Price is per set.