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Ronstan Series 30mm Orbit Block™ Stand Up

Ronstan RF35141 Series 30mm Orbit Block™ Stand Up | Blackburn Marine Ronstan Hardware
RON RF35141


Ronstan Ball Bearing Blocks
Series 30mm Orbital Block™ Single & Becket, Lashing Head

  • Lightweight 
  • Highest working load in its class 
  • Secure, versatile and secure attachment 
  • Low profile and compact.
  • RF35101 accepts RF1850S shackle in both orientations to create a conventional loop top block
  • Ultra low profile thru-sheave becket
Ball Bearing Orbit Blocks™ boast 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 fibre-reinforced composites in the block head, cleat arms and beckets.

  • 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 
  • Sheave: High compression strength carbon black Acetal 
  • Ball Bearings: High compression strength Acetal 
  • Frame/Cheeks: Toughened, glass fibre reinforced Nylon 
  • Link: UV stabilised, multi-strand impregnated SK75 Dyneema®
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