Amscope Binocular Microscope Thrust Bearing
After a while my Amscope SM series microscope started to squeek when pivoting it out of the way of my workspace. The paint/powder coating had worn away on the very small surface that supports the microscope.
I got a thrust bearing and just needed a cage for it to solve the problem
uxcell NTA2435 Thrust Needle Roller Bearings with Washers 1-1/2" Bore 2-5/32" OD 5/64" Width
Amazon: https://www.amazon.com/dp/B0B5XQWQXL
Suggest you print this with 100% infill at whatever detail level you wish.
Hope this helps someone improve their scope!