Maker Pro
Maker Pro

Silent electric motor to drive turntable.

If using the 1:1 ratio like that, you may need quite a bit of power to rotate 200lbs and also stop it precisely at the 90° point.
If it has a vertical shaft and bearing below the table, one method to reduce friction is to place a large ball bearing below at the bottom of the shaft to support it, i.e. reduce the pivot point area.
I once did an interesting 300lb T.T. project that used an air bearing, the whole table is lifted with compressed air before rotation.Very friction free.!!
M.
The TT I am using has a nylon pivot bush/bearing and sits on radial rollers and it seems to work ok. The degrees of rotation arn't that critical.
 
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