Plum-type coupling is mechanical transmission is mainly used to connect two rotating shafts, so as to transmit torque or angle of rotation of mechanical components; also be used for equipment protection safety devices; you can not separate between the movement of the shaft axis , this can only be resolved at the time of the separation device to stop functioning. In addition, if an exception occurs during operation resulting in the transmission torque is too large, 凌斯 Plum-type coupling will first damage, to avoid damage to the motor or other transmission parts. Plum-type coupling two positioning mode (a) Plum-type coupling-positioning is the most traditional fixed ways: 1, the fixation of the shaft damage is relatively large: its fixed locating bolt stress points is relatively small between, and the connecting shaft generated by friction can cause uneven force balanced incur additional bias. The fixed way limited to small fixed axis. 2, as seen on the market positioning and fixing type coupling is mainly composed by two bolts. 3, in order to make better use of the user positioning the solid-type coupling, this coupling selection instruction manual provides four bolts fixed type, that two additional coupling bolts to make up two positioning bolts caused by insufficient, can better solve the deviation due to uneven force generated. Specific usage users can consult when ordering product sales engineer. (B), Plum-type coupling expansion sets and fixed clamping type 1, which is a new fixation fixation because of the lack of a fixed type bolts generated. 2, the two fixation because its production costs are relatively high, so its price is relatively high. 3, clamp type, swelling dwelling located on the installation type is more trouble than some, but the two fixation can be a good insufficient to make up for a fixed screw bolt.