Ronstan Series 40 Fiddle Block - RF40500

The Ronstan Series 40 Fiddle Block (RF40500) is made from precision moulded Acetal sheaves running on Acetal or Torlon® ball bearings to provide high performance and low friction. The 2-stage ball bearing system provides consistent performance over the full load range and the captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.

Features:

• Low friction, 2-stage ball bearing system
• High static and dynamic load capacity
• Lightweight
• Cheek cut-outs for easy bearing maintenance
• Captive Lock™ universal head
• Slotted pin shackle eliminates fouled lines

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, backstays, genoa lead pullers and traveller controls

Specifications:

• Sheave Diameter: 1-9/16 + 15/16 in.
• Max Rope Diameter: 5/16 in.
• Pin Diameter: 3/16 in.
• Max Working Load: 770 lb.
• Breaking Load: 2200 lb.
• Weight: 3.2 oz.
• Materials:
  • Acetal ball bearings
  • UV Stabilized Acetal sheave
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fibre reinforced Nylon cheeks