Selden PBB40 Single Block with Becket – 40 mm Plain Bearing Block for Purchase Systems

The Selden PBB40 Single Block with Becket (404-001-02) is a robust and versatile plain bearing block designed for medium-load applications where a purchase system is required.

This version features an integrated becket, allowing the standing end of the line to be secured directly to the block. This makes it ideal for compact tackle systems such as mainsheets, boom vangs, and trimming setups.

With a 40 mm acetal sheave and plain bearing construction, the block delivers reliable performance under static and moderate dynamic loads while requiring minimal maintenance.

The cheeks are made from glass fibre reinforced composite, preventing line jamming and ensuring smooth operation. Stainless steel and corrosion-resistant components guarantee durability in harsh marine environments.

Key features:

• Single block with integrated becket for purchase systems
• Plain bearing design for low maintenance and reliability
• Acetal sheave for smooth line handling
• Glass fibre reinforced cheeks to prevent line jamming
• Strong composite construction
• Corrosion-resistant materials
• Suitable for static and moderate loads

Technical specifications:

• Sheave diameter: 40 mm
• Maximum rope diameter: 8 mm
• Safe working load: 350 kg
• Breaking load: 700 kg
• Weight: approx. 78 g
• Type: Single block with becket
• System: Selden PBB40

Applications:

• Mainsheet purchase systems
• Boom vang systems
• Control line cascades
• Dinghy and keelboat rigging
• General onboard tackle systems

A practical and durable solution for sailors who need an efficient and compact purchase system.