Ronstan Orbit Block Single Becket


In stock

Ronstan Orbit Block with Single Becket is part of Ronstan’s 30 series pulley blocks, which boasts the highest strength-to-weight ratio available in its class. Sold individually

Ronstan Orbit Block Single Lashing Head Becket Option

Kilogram for kilogram of working load BB Orbit Blocks™ are the world’s lightest. To gain peak performance Ronstan engineered out the heavy steel load straps, head post, shackle and cleating accessories. Through extensive research and development Ronstan replaced virtually all metal components with high-tech polymers and fibre equivalents. Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The end result is the lowest weight possible.

Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement.  Other brands just link together their single blocks with a heavy steel channel across the top of the block, with unnecessary extra cheeks adding extra weight and bulk not found in Ronstan Orbit Blocks™.


  • Sheave: 30 mm
  • Max Rope Width: 8 mm
  • M.W.L: 300 kg
  • B. L: 600 kg
  • Weight: 22 g

Ronstan Orbit Blocks with Single Becket are most commonly used for:

  • Mainsheet systems and spinnaker sheets on dinghies to 5m (16ft)
  • Halyard, vang and backstay applications on boats to 5m (16ft)
  • Control line applications on larger yachts
  • Tool-less anchor trolley rigs on kayaks

Also see: Ronstan Series 30 BB Cheek Block