Let us know what your search turns out. Venture might be an option, but haven't seen their product in years can't speak for the current quality or country of origin....LOL!
That's stupid, Venture makes the highest and strictest quality actuators in the world together with Thomson and Fasco and some other manufacturers.
If you look into one of the Moteck or whatever they are called from China made actuators for large dishes you can see bearings are made from plastic, the metal they use are some cheap second market metal that can't be sold anywhere else stupid chinese people who repack it and sell it, you can read about the famous Chinese bolts and nuts that has spread all around the world because they are dangerous and they fail in tests, actually they break and shear very easy because the metal, this is in almost all chinese made products that use metal of some part.
Moteck is famous for this, they use this in all their products, even the casing.
Jaeger who went bye bye a few years ago tried to squezze all money they could out of their products, Jaeger was pretty good 15 years back, but over the years they replaced all bolts and nuts with this cheap metal Chinese companies use all over.
Even a German and Italian satshop started to sell re-enforcement bracket because the motor would crack in the housing after while, i can send you the link to it if you want....
How can you be proud of this? because they are all low quality chinese branded built to last a short life.
Most consumers in this market today don't know what to expect because they have no experience of how a quality product should be, instead loads of shops all around the world spread cheap chinese made sat products that are not built to any high standards, they are only built to sell in large quantities, these companies don't care about customers or what they want, they only want to make fast money, they don't care about any reputation because they will clone themself into 100 other small chinese companies.
