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Ronstan Series 75 Core Block, Halyard

SKU: RONRF74108  |  Manuf. Code: RF74108
$126.54 USD
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  • 16–30 days: Returns accepted with a 20% restocking fee
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DESCRIPTION

Ronstan Core Block #RF74108 features a two-stage bearing system for consistent low-friction performance under dynamic and static loads. With acetal sheave, alloy cheeks, and stainless fixings, it's perfect for spinnaker sheets, halyards, and control lines up to 14 m boats.

Our Part # RONRF74108| Ronstan Part # RF74108

FEATURES

Features:

  • Class leading performance and sleek, contemporary styling.
  • Excellent dynamic and high static load performance.
  • Less than half the friction of the nearest competitor.
  • Suits direct attachment to mainsail headboard for 2:1 halyard.
  • Removable 8mm (5/16 in) screw pin at head.
  • Acetal roller on head pin to suit spliced line attachment.
  • Alloy Rope/Wire sheave version also available.
  • Central hub hole can be used as a becket take-off or tie-up point.

TECHNICAL INFORMATION

DescriptionImperialMetric
Sheave Ø3.00 in.75.00 mm.
Maximum Rope 5/9 in.14.00 mm.
Pin Ø1/3 in.8.00 mm.
Maximum Working Load3307.50 lb.1500.00 kg.
Breaking Load6615.00 lb.3000.00 kg.
Weight8.25 oz.234.00 gr.