Ronstan Series 50 Double Block - 50 mm (2") - RF51210

The Ronstan 50 mm Series 50 Double Block with Becket and Universal Swivel Head (RF51210) is a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races 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. Head can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tool.

Features:

• Exceptionally high working loads
• Low maintenance, long service life
• Self-lubricating sheave
• Slotted pin shackle eliminates fouled lines
• Lockable swivelling head post
• Snap fit removable becket pin

Applications:

• Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)

Specifications:

• Safe working load: 2200 lb (1000 kg)
• Breaking load: 4410 lb (2000 kg)
• Weight: 9.6oz (271g)
• Sheave diameter: 2" (50 mm)
• Maximum line size: 1/2" (12 mm)
• Materials:
  • U.V. stabilized Acetal sheaves
  • Impact and U.V. resistant, fiber reinforced Nylon cheeks
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load strap
  • Impact and UV resistant, fiber reinforced Nylon cheeks