Sheaves and springs

What is the difference between a pulley with a nylon sheave and one with a brass sheave?

Pulleys with nylon sheaves are lighter and suitable for medium loads, offering good smoothness. Pulleys with brass sheaves are more resistant and suitable for heavy loads and intensive use. The choice depends on the specific application and type of maneuver.

How can I protect pulleys from corrosion?

To protect pulleys from corrosion, it is essential to rinse them regularly with fresh water to remove salt. Periodically lubricating the moving parts with a lubricant specifically for the marine environment helps prevent rust and maintain smoothness.

The spring on my steering system is broken. Can I replace it myself?

Replacing the rudder spring is generally a simple operation, but it is crucial to choose the correct model based on the type of steering system and the manufacturer's specifications. If in doubt, consult the manufacturer's manual or contact a professional to avoid compatibility problems or malfunctions.

What type of pulley is best suited for halyards?

For halyards, it is recommended to use pulleys with nylon or composite sheaves, which offer a good compromise between lightness and smoothness. It is important to verify that the diameter of the sheave is adequate for the diameter of the halyard to avoid premature wear of the rope.

How to choose the correct pulley size?

The size of the pulley depends on the expected working load and the diameter of the rope used. Consult the manufacturer's specifications to ensure that the pulley is suitable for the specific application and can safely withstand the maximum expected load.

What are swivel pulleys and when are they useful?

Swivel pulleys are designed to rotate freely, reducing friction and facilitating maneuvers that require changes in rope direction. They are particularly useful for jib and genoa sheets, where the angle of pull can vary considerably.