RONSTAN Series 30 Orbit Single Block with Stand Up, No Swivel

The 30mm single block with stand up is a true work horse and is suitable for use in most dinghy control line systems. Great for mainsheets, and control line turning blocks mounted low in the cockpit.

• Excellent strength to weight ratio
• Improved two-stage bearing system for efficiency for static and dynamic loads
  • Acetal ball bearings migrate to load areas of the sheave for light to moderate loads
  • PTFE impregnated nylon bearing with carbon fiber reinforcement supports higher static loads
• Hollow bearing at center of sheave serves as a becket to reduce weight and offer additional versatility
• UV resistant Aceal high compression sheave that is compatible with conventional doublebraid and high-tech 12 stand lines
• Ideal for
  • Mainsheets
  • Control lines with turning blocks mounted low in the cockpit