Ronstan S55 Ratchet Orbit Block, Triple With Becket & Cam Cleat
$446.99
Ronstan RF56330B Series 55 Ratchet Triple Orbit Block With Underhung Becket, Adjustable Auto Ratchet Cleat, And Swivel Shackle Head
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Description
Triple ratchet block with underhung becket, adjustable cleat, auto ratchet, and swivel.
Series 55 Ball Bearing Orbit Blocks feature Ronstan’s 2-stage bearing system and are engineered to achieve the highest possible strength-to-weight ratio. They are lightweight and high performance 55mm blocks commonly used for mainsheets and spinnaker sheets on dinghies, sportsboats, and small keelboats up to 9m (30′).
Features:
- Up to 20:1 holding power
- Smooth easing of sheets
- High performance cleating
- Swivel shackle head for unlimited block rotation
- Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points
- Ultra low profile integrated beckets
- Ratchet Sheave: Anodised Aluminium
- Ball Bearings: High compression strength carbon black Acetal
- Frame / Cheeks / Cleat Arms: Toughened, glass fibre reinforced Nylon
- Swivel shackle head fitting: Grade 316 stainless steel
| Type of Block | Triple, Ratchet |
| B.L. | 1500kg |
| M.W.L. | 750kg* |
| Max. Rope diameter | 10mm |
| Weight | 392g |
| Pin Ø | 5mm |
* Load on underhung becket not to exceed 33% of block load. i.e. MWL 250kg (700lb), BL 500kg (1100lb). Underhung becket suits attachment of ‘piggyback’ block for creation of 7:1 or greater purchase. Line load through cleat not to exceed 175kg (385lb).
