Ronstan Series 40 Ball Bearing Fiddle Block with Becket and Cleat

This Ronstan Series 40 ball bearing fiddle block features an integrated becket and cleat, designed for high-performance rigging on boats up to 8m (26ft). The two-stage ball bearing system utilizes Acetal or Torlon bearings to ensure low friction and consistent performance under varying loads.

Key Features:

• Captive Lock universal head swivels or locks in two planes
• Tool-free, adjustable multi-position cleat arm
• Removable becket pin for pre-spliced lines
• Slotted pin shackle prevents fouled lines
• Cheek cut-outs for simplified bearing maintenance
• Durable fiber-reinforced Nylon cheeks with UV-stabilized Acetal sheave
• Grade 316 stainless steel load strap and head fitting

Common Applications:

• 4:1 purchase systems for mainsheets and boom vangs
• Halyards, spinnaker control lines, outhauls, cunninghams, and traveler controls