Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100

The Ronstan 30 mm Series 30 Orbit Block with a Thru-Sheave Becket and Swivel Shackle Head (RF35100) boasts 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 fiber-reinforced composites in the block head.

Features:

• Stainless steel swivel shackle head for ultimate durability and compatibility with harsh fixing points
• Lightweight
• Highest working load in its class
• Secure, versatile and secure attachment
• Low profile and compact
• Ultra low profile thru-sheave becket
• Low friction 2-stage ball bearing system provides consistent performance over the full working load range

Applications:

• Mainsheet systems and spinnaker sheets on dinghies to 5 m (16 ft.)
• Halyard, Vang and Backstay application on boast to 5m (16 ft.)
• Control line applications on larger yachts

Specifications:

• Safe working load: 660 lbs (300 kg)
• Breaking load: 1323 lbs (600 kg)
• Weight: 1.1 oz. (30 g)
• Sheave diameter: 1 3/16" (30 mm)
• Maximum line size: 5/16" (8 mm)
• Materials:
  • Sheave: High compression strength carbon black Acetal
  • Ball bearings: High compression strength Acetal
  • Stage 2 bearing - Carbon fiber reinforced, PTFE impregnated Nylon
  • Frame/Cheeks: Toughened, glass fiber reinforced nylon
  • Link: UV stabilized, multi-strand impregnated SK75 Dyneema®