Compared with the rolling coupling, the rollercoupling has such deficiency as easy to be worn, a low transmission efficiency and difficult to be maintained.
与滚动联轴器相比，滚珠联轴器的传动效率低，容易磨损破坏，维修相对困难。
2
The characteristic and difference between rollercoupling and gear coupling has been analyzed and studied through the replacement of gear coupling by rollercoupling.
The speed reducer upper on the main machine makes central axis rotate through shaft coupling and roller hanger rotates with central axis and rollers on the hanger roll around the inside of ring.