1. The screw shaft is connected with the hanging bearing, head and tail shaft with embedded tongue type, so the installation and disassembly do not need axial movement, and the maintenance is convenient Long mandrel, less hanging and fewer fault points.
2. The variable diameter structure is adopted to increase the volume of the lifting bearing and avoid the contact between the lifting bearing and materials. The service life of the lifting bearing can reach more than two years.
3. Each transmission part adopts floating connection mode. The lifting bearing is a universal joint structure, so that the spiral body, lifting bearing and tail assembly form an integral rotating floating body, which can rotate freely with the transmission resistance within the range, without jamming and blocking.
4. The head and tail bearing seats are outside the shell. All bearings adopt multi-layer sealing and matching sealing technology, and the service life of the bearings is long.
