Selden Block PBB50 Single/Becket-Cam

The 50 mm Plain Bearing Block – Single Swivel with Becket & Cam is a dependable rigging block designed to support smooth rotation and secure line handling in a variety of sailing applications. With a 50 mm plain bearing sheave, this block delivers low-friction rotation under load, reducing wear on control and halyard lines while improving responsiveness.

The single swivel top allows flexible alignment with changing load directions, while the integrated cam grip offers strong, positive line holding. The becket provides a convenient secondary attachment point for snub-ups, tail lines or control leads, adding versatility to deck rigging layouts.

Built for marine conditions, this block combines robust construction with reliable performance — ideal for halyards, control lines, reef tackles and furling systems on cruising and performance yachts alike.

Key Features

• 50 mm plain bearing sheave for smooth, low-friction rotation

• Single swivel top for flexible alignment

• Cam grip for secure line holding

• Becket for convenient secondary attachment

• Durable build for marine environments

• Suited to halyards, control lines and furling systems