fluid coupling
Can be employed in potentially explosive atmospheres accredited acc. to 94/9/EC (ATEX 95)
Tiny functioning slip of the coupling at nominal load
Torque transmission with no wear makes it possible for the commencing of inner combustion engines with linked hundreds
Exceptional vibration separation and shock damping
Torque limitation in the course of start off and overload safeguards coupled elements of a plant
To the prime of the website page
Benefits of the item
Gentle and shockless starting up of 
equipment and conveyors
PTO shaft generators
Bucket wheel excavators
Shredders
Here are lots of write-ups and 
also resources associated with fluid coupling at https://www.hzpt.com/fluid-couplings.htm.