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Low resistance at high, dynamic loads are the main characteristics of roller bearing blocks (RBB). The ability to easily release a highly loaded back stay tackle, german sheeting boom, a spinnaker halyard or a kicker tackle makes for fast, safe, and cuncomplicated maneuvers. You will find yourself focusing on what really matter; Boat Speed.

  • designed for high load dynamic applications
  • machined black anodized aluminum cheeks and torlon roller bearings
  • PA washer insulates stainless from alluminum to prevent corrosion
  • The shackle features a 6/8mm boddy and 8/10mm pin, a strong and lightweight combination
  • the swivel pin is hollow and chamfered to reduce weight
  • acetal ball bearings stabalize the sheave shen subjected to side loads