Selden Block PBB 50 Hi-Load (Halyard)

The 50 mm Hi-Load Plain Bearing Block for CX45 2:1 Halyard is a heavy-duty rigging component designed to handle the significant loads generated when hoisting Code Zero and other large downwind sails with a 2:1 purchase setup. Its robust machined and hard-anodised aluminium body resists corrosion and wear, while the captive pin prevents accidental loss overboard.

Equipped with a 50 mm low-friction acetal sheave, this block delivers smooth rotation under load, reducing line wear and improving overall control. The 2:1 purchase system maximises mechanical advantage, helping to boost halyard tension where standard blocks and stoppers aren’t sufficient.

This block is matched specifically to Selden CX45 Code Zero furlers and supports larger line sizes — making it ideal for cruising and performance yachts that use advanced sail configurations. Installation position and integration into the halyard system should follow Selden’s rigging guidance.

Key Features

• 50 mm plain bearing sheave with low-friction acetal rotation

• Machined hard-anodised aluminium body for durability

• Captive pin prevents loss overboard

• High-load capability for 2:1 halyard systems

• Designed for use with Selden CX45 Code Zero furlers

• Supports larger line sizes for heavy sails