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Ronstan Series 75 Core Block, Single

SKU: RONRF74100  |  Manuf. Code: RF74100
$169.00 $143.65 USD

Description

The Ronstan Series 75 Core Block, Single #RF74100 is your go-to for reliable sailing performance. It's designed with a dual-stage bearing system that excels under varying loads, ensuring your sailing adventures are smooth and efficient. Whether you're cruising or racing, this ronstan sailing block is built to last.

Features & Benefits

  • Durable acetal sheave and alloy cheek plates
  • High compression strength carbon black acetal ball bearings
  • Grade 316 stainless steel shackle, post, and hub
  • Handles high dynamic and static loads

Constructed with materials like aluminium alloy cheek plates and a stainless steel hub, this block is built for durability. Its acetal sheave and high-strength ball bearings provide optimal performance under pressure. Suitable for boats up to 14 m (46 ft), this versatile block is perfect for sheets, halyards, and control lines.

Usage

Perfect for mainsheet, spinnaker sheet, vang, halyard, and backstay applications, this block is tailor-made for both cruising and racing scenarios.

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.
  • Universal head with full 3-axis articulation.
  • Head posts can be locked at 0 or 90 degrees, by using a 2.5mm Hex/Allen Key.
  • 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.
Weight12.49 oz.354.00 gr.