A liquid coupling or hydraulic coupling is a hydrodynamic or ‘hydrokinetic’ device utilized to transmit rotating mechanical power. It has been found in automobile transmissions instead of a mechanical clutch. It also has widespread program in marine and commercial machine drives, where adjustable speed operation and managed start-up without shock loading of the power transmission system is essential.
Features:
Improve the starting capability of electric motor, protect electric motor against overloading, damp shock, load fluctuation and torsional vibration, and balance and load distribution in the event of multimotor drives.
Applications:
Belt conveyers, csraper conveyers, and conveyers of most kinds Bucket elevators, ball mills, hoisters, crushers, excavators, mixers, straighteners, cranes, etc.
SELECTION:
Without special requirements the following technical data sheet and power chart are accustomed to select the proper size of fluid coupling with oil moderate according to the power transmitted and the acceleration of electric motor,e,i,the input of the fluid coupling.
When ordering,please specify the dimensions of the shaft ends of lmotor and driven machine(or reducer)including 
diamenter,tolerance or fit of the shafts(if simply no tolerance or fit is specified,the bores will be machined th H7),fit length of the shafts,width and depth of the keys (of notice the standard No.enforced).For ordering the fluid couplings with belt pulley,brake puley or othe unique requirements please state the technical data in detail.
YOXz is a coincidence machine with moving wheel which is in the result stage of the coincidence machine and is connected with elastic axle connecting machine (plum blossom type elastic axle connecting machine or elastic pillar axle-connecting machine or actually the axle-connecting machine designated by customers). Usually there are 3 connection types.
YOXz is inner wheel driver which has tight structure and the smallest axle size.The fittings of YOXz possess a broad usage, simple structure and the size of it has basically be unified in the trade.The connection style of YOXz is that the axle size of it is longer but it is unnecessary to go the electromotive machine and decelerating machine. Only demolish the poor pillar and linked spiral bolt can unload the coincidence machine so it is extreme convenient. Customer must offer the size of electromotive machine axle (d1 L1) and decelerating machine axle (d2 L2). The wheel size (Dz Lz C) in the desk is merely for reference, the real size is set by customers.
Attention:
the tiniest size Dp belt tray can perform.the largeat size the dl axle hole can doYOXp type is a connection design of belt tray with hydraulic coincidence machine. The electromotive machine (or decelerating machine) axle directly inserts in the axle hole of the coincidence machine which is suitable in products transported by belt.Consumer must provide you with the connection size of electromotive machine axle (d1 L1) and the detailed specification and size of belt tray.
YOXm is one which the axle of decelerating machine directly inserts in the axle hole of coincidence machine and the electromotive machine stage ML(GB5272-85) connects with plum blossom type elastic axle connecting machine. It is reliable connected and has simple structure, the smallest axle size which really is a common connection enter current small coincidence machine.
Customer must provide you with the size of electromotive machine axle (d1 L1) and decerating machine axle (d2 L2) as proven in the picture, others if customer do not supply, we will produce based on the sizes in the desk.