Orbit Blocks

 Series 150mm


  •  The highest strength-to-weight ratio
  •  Minimal friction loss, especially when working at high loads
  •  Totally reliable and trouble free performance
  •  Simplicity of design and construction to facilitate maintenance and servicing
  •  Elegant, functional styling and finish.

  Product No. Desc. Sheave ØMax. Rope ØMax. Cable ØPin ØM.W.L.B. L.Weight
 RF159100 RF159100 Single 15020-12.76500142001384
 RF159106 RF159106 Single block, swivel for stand-up 15020216500142001384
 RF159107 RF159107 Webbing 15020--650014200979
 RF159108 RF159108 Single, halyard 15020-18.06500142001046
 RF159108R RF159108R Runner 15020-18.06500142001075
 RF159110 RF159110 Single, becket 15020-12.06500142001496
 RF159118R RF159118R Runner, becket 15020-18.06500142001220
 RF159151 RF159151 Single, foot 15020--6500142001285
 RF159251 RF159251 Double, foot 15020--6500*14200*2310


Orbit blocks are a no-compromise product range developed to meet the demands and expectation of the very dedicated and increasingly professional racing sailor. Side cheeks incorporating head structure and hub are precision machined as a single part from solid alloy, leaving material only where it contributes to the load carrying capacity of the block and eliminating the need for additional fasteners. The Orbit sheave has captive Acetal or Torlon® ball bearings for side thrust loads, eliminating the need for side retainer plates. This reduces weight and allows for a wider bearing surface that can accommodate longer Torlon® needles – achieving a substantially higher strength-to-weight ratio.


  • Mainsheet and genoa sheet systems on boats to 25m (82ft)
  • Spinnaker systems, halyards on boats to 28m (92ft)
  • Running backstay systems on fractionally rigged boats to 20m (65ft) or 25m (82ft) masthead


  • Fully machined Alloy cheek plates
  • Alloy sheaves with captive ball races
  • Torlon® needle rollers
  • Carbon black Acetal ball bearings