Made from polyurethane materials, this GR Spider Coupling is used as a joint in transmission shaft for jaw coupling. Featured in the jaw or spider structure, the offered product has flexible design, ease of mounting & disassembly, no wear and ensures quiet operations. This product is capable of compensating buffer, axial relative drift and vibration reduction. There's no need for lubrication after installation of this product to reduce energy loss. Customers extensively use this product in mechanical and hydraulic fields for transmission and high rotating speed accuracy. We provide this GR Spider Coupling with good elasticity, high strength and precise dimension features.