Description The 40mm dynamic ball bearing block is an essential piece of equipment with a range of applications suitable for mainsheet, jib, spinnaker and vang systems. It has been designed with a clever stainless steel anchor strap and allen dynamic ball bearing technology for performance and durability. Can be used for either the boom end block or the centre boom block without having to replace the eye on a laser Line friendly soft contours and articulation stainless steel cheeks and inner bearing systems handle maximum loads central hole for tie-on becket line 6-10mm lemgth 64mm swl 180kg break load 800kg weight 37.2gms
