Selden Roller Bearing Blocks 60mm

Low resistance at high, dynamic loads is the main characteristic of Seldén Roller Bearing Blocks (RBB). The ability to easily release a highly loaded backstay tackle, a main sheet, a spinnaker halyard or a kicker tackle makes for fast, safe and uncomplicated manoeuvres.
Designed for high load, dynamic applications. Machined, black anodised aluminium cheeks and Torlon® roller bearings. PA washer insulates stainless from aluminium to  prevent corrosion. The shackle features a Ø 6 mm body and Ø 8 mm pin, a strong and lightweight combination. The swivel pin is hollow and chamfered to reduce  weight. Acetal ball bearing stabilize the sheave when  subjected to side loads.