CW55174 - Ronstan Series 30 Ball Bearing Orbit Block™ - Single - Becket - Lashing head

• Lightweight
  
• Highest working load in its class
  
• Secure, versatile and secure attachement
  
• Low profile and compact
  
• Ultra low profile thru-sheave becket
  
• RF35101 accepts RF1850S shackle in both orientations to create a conventional loop top block
  
• Self-lubricating Nylatron® sheave and full contact bearing for high dynamic loads

• Mainsheet systems and spinnaker sheets on dinghies to 5M(16')
  
• Halyard, vang and backstay applications on boats to 5M(16')
  
• Control line applications on larger yachts

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

The Ronstan Series 30 Ball Bearing Orbit Block� (part number CW55174) is a single block with a becket and lashing head designed for marine applications requiring efficient line management. Constructed from composite reinforced polymer materials, it offers a high strength-to-weight ratio and is suitable for various rope systems. This block is engineered to provide minimal friction through its ball bearing design and self-lubricating Nylatron� sheave, which handles high dynamic loads. It is intended for use in mainsheet and spinnaker sheet systems on dinghies up to 5 meters (16 feet), as well as halyard, vang, and backstay applications on similar sized boats. Additionally, it can be integrated into control line systems on larger yachts, offering a compact and low-profile solution for reducing friction and managing lines effectively.