Omegon Roller Bearing Dobson for 6 to 12 inch

Omegon Rollager Dobson S for 6 to 12 inches: the most affordable upgrade for your Dobson

The optics of a Dobson are usually better than the mechanics around it. The base plates rotate on plastic pads, and that combination of sliding and weight makes the movement stiff. You push, nothing happens, you push harder and then the telescope overshoots the object.

This roller bearing fixes that for a modest amount. You place it between the base plates and the azimuth movement becomes smooth, without having to drill or glue anything.

What changes at high magnification

The difference is most noticeable when tracking a planet at 150x magnification or more. Without a bearing, you correct in jerks and frequently lose the object from view.

With a roller bearing, the corrections are smooth. You push gently and the telescope follows that movement immediately, without sticking first.

Toolless assembly

You loosen the central bolt, lift the rocker box off the base plate, place the bearing around the bolt, and put everything back. That is the whole job.

The bearing consists of an upper and a lower plate with the rolling elements in between, so the components stay in place by themselves.

Check dimensions

The outer diameter is 320 mm, the inner diameter is 13 mm and the height is 5 mm. Measure your baseplate before ordering: for a Dobson larger than 12 inches, the L version with 460 mm is the right choice.

Featured accessories

A laser collimator is the first accessory you need for any Newtonian and Dobson. From an 8-inch aperture, a moon filter adds comfort when observing the full moon.

For whom yes and for whom no

• ✓ Owners of a 6 to 12-inch Dobson
• ✓ Anyone who wants to track objects at high magnification without shaking
• ✓ Observers looking to make a noticeable difference on a small budget
• ✗ Dobsons larger than 12 inch: choose the L version
• ✗ Base plates smaller than 320 mm
• ✗ Whoever wants to improve the elevation movement: this bearing works in azimuth

Specifications

You can find more telescope parts for this brand on the Omegon brand page.