Ronstan Series 30 Orbit Stand-Up Block - 30 mm (1 3/16") - RF35140

The Ronstan 30 mm Series 30 Orbit Stand-Up Block with Swivel (RF35140) 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:

• Swivel Block
• 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 on dinghies to 5 m (16')
• Spinnaker sheets on dinghies to 5 m (16')
• Control line applications on larger yachts

Specifications:

• Safe working load: 660 lb (300 kg)
• Breaking load: 1323 lb (600 kg)
• Weight: 1.2 oz (34 g)
• Maximum line size: 5/16" (8 mm)
• Materials:
  • Sheave: High compression strength carbon black Acetal
  • Ball Bearings: High compression strength Acetal
  • Frame/Cheeks: Toughened, glass fiber reinforced Nylon
  • Link: UV stabilized, multi-strand impregnated SK75 Dyneema®