Designed for racing boats, these low-friction, high-load, Series 55 Orbit ball bearing cheek and halyard turning blocks have the highest strength-to-weight ratio available. Suitable for spinnaker sheets on dinghies, sportsboats and small keel boats to 30 ft., halyard applications on boats to 26 ft., and control lines on larger yachts.
• Ultra lightweight
• Low friction 2-stage ball bearing system ensures low friction and high load capacity
• Highest working load in its class
• Low profile and compact
• Cheek block has recessed underside to suit cruved mounting surface
• Sheave diameter: 2-3/16" (55mm)