Imperial Metric
Sheave Dia. 2 3/4" 70 mm
Max. Rope Dia. 1/2" 12 mm
Maximum Working Load 1540 lb 700 kg
Breaking Load 3080 lb 1400 kg
Weight 4.3 oz 122 g

Product Description

Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fibre-reinforced composites in the block head, cleat arms and beckets.

• Ultra Lightweight.
• Low friction 2-stage Orbital ball bearing system.
• Highest working load in its class.
• Easily fitted and securely retained Dyneema Link head.
• 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®.

Mainsheet systems on dinghies, sportsboats and small keelboats to 9 m (30 ft), spinnaker sheets on dinghies, halyard, vang and backstay application on boats to 8 m (26 ft), control line applications on larger yachts.

Part Number: RF75151

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Ronstan Series 70 BB Orbit Block, Cheek
Original Price: $ 78.77
Price: $ 66.95

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