In order to fully utilize the function of gear couplings, it is necessary to use various types of couplings correctly. All relative displacements between the driving shaft and the driven shaft are reflected in the inclination of the outer cylinder combined with the two inner cylinders. Therefore, in principle, between the fixed supported bearings, the two inner cylinders must always be freely engaged with their respective outer cylinders.
If(6)Only one set is used in the middleNSETheNSMEandNCEParallel displacement is not allowed. Additionally, if using two or more groupsNSSTheNSMTheNUSorNCCAnd there are no bearings in the middle, such as(7)As shown, this will result in unstable operation and should be avoided.

Note) ForNSETheNSMETheNCE, please use（1）Or（2）. However, although in principle it should be avoided(5)But if the alignment is accurate enough, it can be used.
Note: Used on the intermediate shaftNSSTheNSMTheNCCWhen, please press（3）Set up a fixed bracket as shown. if pressed(7)As shown, the intermediate shaft will move freely and produce oscillation.
Note: Used on the intermediate shaftNSSTheNSMTheNCCTheNUSandNSETheNSMETheNCEWhen, please press（4）Set up inclined support as shown.
Note: such as（8）When used as shown, the intermediate shaft will tilt and swing.