Twin Spring Coupling produces the first new power transfer coupling technology in the past 50 years. The twin spring coupling is a bi directional coupling that can be used in all equipment as a replacement to a universal or Cardan joint. Built from two counter wound springs and a central ball bearing , it is the only zero maintenance option available. No bearing no greasing nothing. Water dirt, dust debris wont affect its performance as there are no internal moving parts to fail. Being made of two springs it is more flexible than traditional coupling technology and can also take more of a beating when it comes to impact damage as well as the ability to take a shock load. Drivetrain, axle, steering, PTO attachments we can do it all. Currently available at 300 and 500 ft lbs torque rating we can handle all of your farming needs. Come see at www.twinspringcoupling.com and see what we can do for you