Classification of screw conveyors: Classification of driving modes according to Screw Conveyor 1. When the length of U screw conveyor is less than 35m, it is a single axis drive screw. 2. When the length of U screw conveyor is longer than 35m, it is a two axis drive screw. Activated carbon Conveying Equipment Classification of middle suspension bearing of screw conveyor 1. M1-for rolling crane bearings, using 80000 sealed bearings, shaft cover with dust-proof sealing...