Plum-shaped flexible coupling, as the name suggests, its plum-shaped elastomer derived from the name, depending on the elastomer material can be divided: plum-shaped coupling rubber, polyurethane Plum coupling; elastomeric polyurethane generally adopted. According to its properties and uses can be divided into: plum-shaped flexible coupling, servo motor coupling with plum, plum clamping couplings. With a keyway type, clamping, lengthened, flanged, and many types to choose from. Plum-shaped flexible coupling is used in the middle of polyurethane elastomer, both ends of the coupling halves with a claw, but also called claw coupling with two claws, the jaw, the four claws, Ipomoea, six claw elastic flap has four and six and eight, and ten of the twelve flap. Plum-shaped flexible coupling has the following characteristics: simple flower-shaped flexible coupling structure, small radial size, light weight, low inertia, suitable for high-speed applications, plum-shaped flexible coupling is stable and reliable, has good reduction vibration cushioning and electrical insulation properties. Plum-shaped flexible coupling with a large axial, radial and angular compensation capability, plum-shaped flexible coupling high-strength wear-resistant polyurethane elastic element oil, carrying capacity, long life, safe and reliable, couplings No lubrication, less maintenance, continuous long-term operation.