Ronstan | Block double with becket series 55 | RF55510
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-15%

Control block double with becket series 55

Block double Ronstan, fiddle series 55

€68.35 Tax included

€56.02 Tax excluded

€80.41 -15%

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Description

Block double Ronstan, fiddle series 55

Kilogram for kilogram of working load, BB and RT Orbit Blocks ™ are the world's lightest. The unique design of the orbital allows the bearing to only be in the active areas of the pulley float. This reduces to a minimum the mass of the return stroke of the inactive and the hub. Weight and size are further reduced in the different configurations of the block. The block with the bearing ball and a single has a system of attack to pulley shaft. The result? The weight as low as possible. The blocks multi-sheave, have only the cheeks intermediate individual and a provision of the head ultra-lightweight and efficient. This gives an advantage of weight savings of 30% compared to the nearest competitor. Other brands connect to only the individual blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy channel steel through the top of the block. The highest working load in its class The available orbital of the ball bearing gives the greatest possible diameter of the raceway of the bearing. This maximizes the performance of the load. The proven bearing system two-stage Ronstan is equipped with ball bearings in acetal for high-compression and a ball bearing secondary complete contact. This gives minimum friction across the full range of work load. The system of pulleys and floating bearings is supported by a load frame with reinforced fiber. The design has been computer-modeled so as to optimize the stress. The Dyneema® Link is produced from the fiber of FSE Robline SK75, which is 10 times more strong and lightweight steel, and provides the final connection from the block to the load point.

APPLICATIONS

  • Systems sheets on dinghies, sport boats and small keel boats to 9m (30 feet)
  • Application, Halyard, Vang and Backstay on boats up to 8 m (26 ft)
  • Applications of the line of control on larger yachts

SIZE

  • Pulley: Ø55mm + 35mm
  • Top maximum: Ø10mm
  • Pin: Ø5mm
  • Working load: 500Kg
  • Breaking load: 1000Kg
  • Weight: 101g
Data sheet
Ronstan
RF55510
9316800480265
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