Product Description 3″ dual axis slewing drive worm gear speed reducer slewing bearing gear motor for small PV solar tracker and satellite receiver CHINAMFG Drive Slewing drives consist of slewing bearing, worm shaft, housing, bearing, motor and so on. Motor drive the worm shaft, the outer ring of slewing bearing will rotate, the outer ring … Continue reading China Standard 3 Inch Dual Axis Slewing Gear Motor Generator with 24V DC Motor with Good quality