Barton Marine Size 3 Single Plain Bearing Block w/Swivel

Introducing the Barton Marine Size 3 Single Plain Bearing Block with Swivel — a compact, high-load performance block built for reliability on small sailing craft. The precision molded acetal sheave runs smoothly on a large diameter brass bearing, delivering free-running operation even under heavy loads.

• Fully swivelling head with a removable shackle for quick rigging and flexible line routing.
• Ideal for dinghies, day boats, and light cruising yachts where dependable performance is essential.
• Dimensions: Length 100 mm (3-15/16"), Single 45 x 13 mm (1-3/4" x 1/2"), Weight 73 g.
• Rope compatibility: Maximum rope diameter 10 mm (3/8").
• Load ratings: Safe Working Load (SWL) 400 kg (881 lbs); Break Load 800 kg (1763 lbs).
• Manufacturer: Barton Marine • Part No: N03130.

Designed for easy service and long life, this block handles the rigors of sail control with confidence. The combination of a high-precision acetal sheave and robust brass bearing ensures a smooth, durable performance, while the swivel head minimizes line twists and reduces wear on sheets and halyards.