Single block B400848

base plateroller bearingfor sailboats

This ROC Block Stand-up solution is completely unique on the market. It has a ball joint which under load adjusts itself to the right angle and stays there. It is equally strong in all directions, and allows a leaning angle down to 50 degrees. It also has the lowest height of all stand-up solutions, which helps to prevent winch overrun. The ball joint stand-up comes in a kit with a ROC block, which is available in two sizes. There are also two different versions to choose from, one standard which is bolted on deck and one through-deck. Depending on diameter and angle the rope exits as low as 42 mm above deck on the standard one, and down to 22 mm on the through-deck version. Like all our other products this ROC Block stand-up solution is designed and produced in our factory in Marstrand, Sweden. The ROC block is made of high quality aluminum, and comes with a ball joint stand-up in mirror polished stainless steel 316 and high strength composite. The stand-up should be fitted with four M8 bolts with countersunk head. For full strength, use A4-80 quality or higher.