Ronstan RF55111 Series 55 Orbit Single Block with Becket.

Ronstan RF55111 Orbit Block with becket. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting.

General Range Information:

• Ultra Lightweight
• Low friction 2-stage Orbital ball bearing system
• Highest working load in its class
• Easily fitted and securely retained Dyneema Link head
• Low profile and compact
• High performance cleating
• Sheave Diameter 55mm

Technical:

• Sheave Diameter 55mm
• Maximum Rope Diameter 10mm
• Maximum Working Load 500kg
• Breaking Load 1000kg
• Weight 75g

Materials:

• Ball bearings - High compression strength carbon black Acetal
• Stage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon
• Frame/Cheeks - Toughened, glass fibre reinforced Nylon
• Rope Link: UV stabilised, multi-strand impregmented SK75 Dyneema

Applications:

• Mainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)
• Spinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)
• Halyard, Vang and Backstay application on boats to 8m (26ft)
• Control line applications on larger yachts

We recommend using the RF613S shackle to securely attach the block to the existing deck eye on your boat. This helps the block maintain maximum freedom of movement and reduces the risk of wear on the Dyneema loop due to sharp edges on the deck eye, then use the 8072 Rubber Boot to keep the block upright and provide a neat finish. See related items.

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