Ronstan 55 mm Series 55 BB Orbit Block
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Series 55 BB Orbit Block™, Single with becket and swivel head
- Swivel shackle head for unlimited block rotation.
- Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points.
- Ultra low profile integrated becket.
- Mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 9 meters ( 30 feet )
- For Halyard, vang and backstay applications on boats up to 8 meters ( 26 feet )
- Sheave: Carbon fiber reinforced, PTFE impregnated Nylon.
- Head fitting: grade 316 stainless steel.
- Ball Bearings: High compression strength carbon black Acetal.
- Stage 2 Bearing: Glass fiber reinforced, MoS2 impregnated Nylon
- Safe working load: 1100 lb (500 kg)
- Breaking load: 2200 lb (1000 kg)
- Weight: 3.1oz (88g)
- Sheave diameter: 2-5/32" (55 mm)
- Maximum line size: 3/8" (10 mm)