Ronstan Series 50 Fiddle Block - RF51500

The Ronstan Series 50 Fiddle Block (RF51500) 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
• Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)
• Ideal for fine-tune mainsheet tackles, cunninghams, backstays and other control line purchase systems

Specifications:

• Safe working load: 1650 lb (750 kg)
• Breaking load: 3310 lb (1500 kg)
• Weight: 5.9oz (167g)
• Sheave diameter: 2-1/8" and 1-5/16" (54 mm and 34 mm)
• Maximum line size: 3/8" (10 mm)
• Materials:
  • U.V. stabilized Acetal sheaves
  • Impact and U.V. resistant, fiber reinforced Nylon cheeks
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load strap
  • Impact and UV resistant, fiber reinforced Nylon cheeks