Jaw coupling spiders for use with KTR's range of hubs. Manufactured from T-PUR® an improved polyurethane that is able to withstand significantly higher temperatures than standard polyurethane spiders giving greatly improved length of service. Available in 92 (shore-A), 98 (shore-A) and 64 (shore-D) for varying degrees of damping in various sizes to suit a wide variety of applications.