Single-Disc Plain Bearing Block PBB with Swivel / 50mm Washer

Seldén PBB Plain Bearing Block, single sheave

The Seldén PBB plain bearing blocks are designed for very high and static loads, making them ideal for applications such as backstays, checkstays, halyards, mainsheet systems, and boom vangs. This version is single sheave and impresses with its compact design and high load capacity.

Technical Details

• Sheave material: Acetal – durable and low friction
• Axles: High-strength, stainless steel for maximum strength and corrosion resistance
• Housing: Robust composite material for low weight and high stability
• Swivel: Can be locked in longitudinal or transverse position for maximum flexibility in mounting and use

Special Features

• Plain bearing technology: Optimised for very high and static loads. The higher the load, the better the block performs compared to ball bearing blocks.
• Long service life: The large contact surface in the plain bearing distributes the load, reducing wear and increasing durability.
• Versatile application: Ideal for halyards, boom vangs, mainsheet systems, and all areas where high loads must be reliably handled.

Note: Blocks are essential components on any sailing yacht. Check them regularly to ensure safety and performance under all conditions.