At first, I thought it might be an AJAK.
But, I dug out pictures of their Small, Medium, and Large models, and I was wrong.
Hard to get a feel for the sizes in your picture; there's nothing to reference against, except maybe the motor size.
So, I'd say the mount looks kinda small.
Don't know how heavy your 10' dish is, but maybe if some of the old timers & experts know more about your motor, they'll give better advice.
I'm sure I'd love to have it - got any more?
Think it'd probabaly swing a 6' Prodelin (maybe 100 lbs), but that's just speculation.
edit: and if you plan to swing a Ku dish, you'll probably want to replace the disc with the 8 magnets, with a 24 or 36 pole disc.
It'll give more accurate positioning.
Useful for C-band, and required (as best I can tell) for Ku aiming.
How it works: in line with the motor is a cube. I'm guessing that has some gears.
Then, inline with the cube, is a long black rectangular structure.
I'm guessing it has the worm gear inside, which engages the side of the big gear you see.
The size of the big gear is pretty small in comparison to other motors I've seen.
So, I wouldn't think this thing could handle too big a dish in the wind.