Ronstan Series 50 Triple Block - 50 mm (2") - RF51300

The Ronstan 50 mm Series 50 Triple Block with Universal Head (RF51300) has self-lubricating Acetal polymer sheaves running on polished stainless steel races that perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Swivel shackle head for full 360 degree rotation (non-locking).

Features:

• Low friction
• High static and dynamic load capacity
• Lightweight
• Stainless steel ball bearings
• UV stabilized Acetal sheave
• Grade 316 stainless steel load strap and head fitting
• Impact and UV resistant, fiber reinforced Nylon cheeks
• Applications:
  • Mainsheet and halyard applications, vang and spinnaker control lines on boats to 33 ft

Specifications:

• Block Type: Triple Block with Universal Head
• Safe working load: 2650 lbs (1200 kg)
• Breaking load: 5290 lbs (2400 kg)
• Weight: 13.0 oz. (369 g)
• Sheave diameter: 2" (50 mm)
• Maximum line size: 1/2" (12 mm)
• Materials:
  • U.V. stabilized Acetal sheaves
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fiber reinforced Nylon cheeks