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Can you make an old mount smoother?

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6 replies to this topic

#1 RobVG

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Posted 31 March 2021 - 08:21 PM

Just got an old scope for a project. It has an alt/az mount. It moves up and down okay but it's a little rough left and right. And it loosens with use but the nylock nut holding it isn't coming loose. It has a piece of nylon sheet for a bearing. 

 

Is there a fix for this?



#2 JamesMStephens

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Posted 31 March 2021 - 08:47 PM

You're teasing us, Rob!  What kind of scope?  Where's the picture?

 

Jim



#3 rodney j johnson jr

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Posted 31 March 2021 - 09:10 PM

you can't make an old man young again (at least, that's what i've heard, cough).

BUT, he can do workarounds/

 

keep trying. a solution will present itself (but you might need glasses).


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#4 KTAZ

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Posted 31 March 2021 - 09:15 PM

Bearings, whether nylon, Teflon, or metal, can be replaced. Between that and a good clean and degrease, then re-grease, you should be in much better shape.


Edited by KTAZ, 01 April 2021 - 08:39 AM.

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#5 RobVG

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Posted 01 April 2021 - 12:18 AM

Are thrust bearings ever used?

#6 KTAZ

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Posted 01 April 2021 - 08:41 AM

Absolutely. Thrust bearings are common in mounts.


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#7 AstroKerr

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Posted 03 April 2021 - 09:46 AM

You may want to keep to the thrust washer - the nylok allows you to adjust the friction / brake effect and adjustable ease of Az rotation and isn't usually damaged by the compressive forces applied to that end. A proper thrust bearing would need a good cinch down to provide the same friction / brake effect and I would expect damages to the balls / rollers or raceways unless a different type of brake were used.

 

If there is room, replacing the nylok with a lock washer and a wingnut may make things easier in the future.


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