Ronstan RF8090-21 21mm Low Friction Ring – Hard-Anodised Aluminium Ronstan RF8090-21 21mm Low Friction Ring – Hard-Anodised Aluminium
Ronstan RF8090-21 21mm Low Friction Ring – Hard-Anodised Aluminium

Ronstan

Ronstan RF8090-21 – 21mm Low Friction Ring

$49.90
Tax included.

The Ronstan RF8090-21 Low Friction Ring offers a compact and lightweight solution for high-load marine applications. Crafted from hard-anodised aluminium, this ring ensures durability and minimal friction, making it an excellent alternative to traditional blocks in systems with small line deflection angles or high static loads.

Key Features:

  • Material: Hard-anodised aluminium

  • Internal Diameter: 21mm (13/16")

  • External Diameter: 47mm (1 27/32")

  • Depth: 22mm (7/8")

  • Weight: 33g (1.16 oz)

  • Maximum Working Load: 5000 kg (11,020 lbs)

Designed with a deep external groove for secure rope retention and a smooth internal profile for efficient line movement under load.

Ideal Applications:

  • Deflecting lead lines

  • Static load applications

  • Barber haulers

  • Lazy jacks

  • Backstays

  • Cascading vangs