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Apertura Roller Bearing Kit for AD Dobsonians
The Apertura Roller Bearing Kit for AD Dobsonians is available if you need a replacement roller bearing for your Apertura AD Dobsonian mount!This roller bearing kit comes complete with a plastic roller-bearing disc andtwo metal discs.Please Note: This roller bearing kit can also be used for the Apertura DT Dobsonians, though users may need a longer center bolt (not included).
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Replacement Ready
The Apertura Roller Bearing Kit for AD Dobsonians is an easy-to-install replacement when you are in need of a quick fix. Read more below!
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Easy Installation!
To assemble your roller bearing assembly, simply place one of the metal discs on the bottom base plate. Make sure you align the Axle Sleeve to the hole in the center. It does not matter which part of the metal disc is pointing up. Then, place the round plastic roller bearing disc over the first metal disc. Once again, it does not matter which side faces upwards. Finally, place the second metal disc, either side up, over the roller bearing disc. Then you are good to replace the base housing (making sure the bottom base plate is attached).
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Comes with the Apertura Absolute Warranty!
The Apertura Absolute Warranty provides two years of coverage against product defects. After the initial two-year warranty expires, this product qualifies for Apertura’s Three-Year Accident Replacement Program. In addition, the Apertura Absolute Warranty is transferrable! Download a copy of the Apertura Absolute Warranty for more information on this program, how to make a claim, and why it is important to keep your original receipt and the product’s original boxes & packaging!
