Greeting. We are a Finnish company.We are about to start a reversible trend in solar power. That is, following the sun.Two different types. 3.3kw and 5kw unit.We are looking for an affordable turning device for this swinging solar tower.The purpose is to make an inexpensive energy device. (Attached imageThe hole for the swivel ring is about 250-270mm and the bolt M16.Motor either CD or AC 230vLook at me a low cost swivel bearing, Thank you.We need 1 protonLater in the growing number of year 2020 about 200-500 pcs more.Looking forward to your offer, delivered by Helsinki Finland Flight Cargo. Show More