Ronstan 55 mm Series 55 RT Orbit Ratchet Block
Series 55 RT Orbit Block™, Single with auto & manual ratchet and swivel head
- Swivel shackle head for unlimited block rotation.
- Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points.
- Auto & manual ratchet engagement modes.
- Up to 20:1 holding power.
- Mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8m ( 26 feet )
- Halyard, vang and backstay applications on boats to 8m (26ft).
- Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks)
- Control line applications on larger yachts.
- Ball Bearings: High compression strength carbon black Acetal.
- Sheave : Hard anodized aluminum.
- Safe working load: 550 lb (250 kg)
- Breaking load: 1430 lb (650 kg)
- Weight: 2.9oz (82g)
- Sheave diameter: 2-5/32" (55 mm)
- Maximum line size: 3/8" (10 mm)