Ronstan RF40500 Series 40 Ball Bearing Block – Fiddle

The Ronstan RF40500 Series 40 Ball Bearing Block –
Fiddle features a sheave running on Acetal ball bearings
that provide high performance and low friction. The 2-stage ball
bearing system provides consistent performance over the full load
range.

Ronstan RF40500 Series 40 Ball Bearing Block – Fiddle
Features:

• Acetal ball bearings
• UV stabilised Acetal sheave
• Grade 316 stainless steel load strap and head fitting
• Impact and UV resistant, fibre reinforced Nylon cheeks
• Low friction Acetal bearing system
• Lightweight
• Cheek cut-outs for easy bearing maintenance
• Slotted pin shackle eliminates fouled lines
• High static and dynamic load capacity
• Applications:
  • Mainsheet
  • Halyard
  • Vang
  • Spinnaker control lines on off-the-beach catamarans, one design
    classes and sportsboats up to 8m (26ft)
  • Typically used in direct 4:1 purchase systems such as
    mainsheets and boom vangs
  • On larger boats they are used for fine-tune mainsheet tackles,
    outhauls, cunninghams, checkstays, genoa lead pullers and traveller
    controls

Ronstan RF40500 Series 40 Ball Bearing Block – Fiddle
Specifications:

• Sheave diameter: 40 mm + 24 mm
• Max. Rope diameter: 8 mm
• Pin diameter: 5.0 mm
• M.W.L.: 350 kg
• B. L.: 1000 kg
• Weight: 90 g