Barton Marine Size 3 45mm Plain Bearing Pulley Block with Swivel & Becket

Size 3 45mm Plain Bearing Pulley Block Single Swivel Becket

The size 3 Barton plain bearing blocks have 45mm (1 3/4 sheave size 3 block range incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fibre glass-filled nylon and Acetal sheaves to maximise their strength whilst keeping weight to a minimum. Suitable for use as mainsheet, vangs, lead blocks, or wherever a powerful and compact purchase system is required on dinghies, dayboats, and lightweight cruisers.

Suitable for up to 10mm (3/8) rope.

Specifications:

• Weight: 91 g
• Dimensions: 114 47 28 mm
• Size: 3 (45MM)
• Block Type: Swivel + Becket
• No. of Sheaves: Single
• Bearing Type: Plain
• Sheave Size: 45mm x 13mm (1 3/4 x 35/64)
• Max rope diameter: 10mm (3/8)
• SWL: 400kg (881lbs)
• Break load: 800kg (1763lbs)
• Max rolling load (ball bearing blocks): 270kg (595lbs)

The Barton Marine Size 3 45mm plain bearing pulley block is designed for lightweight and high-performance applications on dinghies, dayboats, and cruisers. Crafted with a stainless steel frame and featuring advanced materials such as 30% fibre glass-filled nylon and Acetal sheaves, this pulley offers an optimal balance of strength and weight savings. Its compact size and robust construction make it suitable for mainsheets, vangs, lead blocks, or other purchase systems requiring reliable performance in tight spaces. The pulley accommodates ropes up to 3/8 inch (10mm) in diameter, ensuring compatibility with common sailing rigging.
Its swivel and becket design facilitates easy attachment and adjustment, enhancing versatility during sailing operations. The single sheave configuration, measuring 45mm in diameter, allows for smooth running and reduces friction, contributing to overall efficiency. With a working load limit of 880 pounds and a break load of 1,763 pounds, this block provides ample safety margins for demanding sailing conditions. The pulley weighs just 3.2 ounces, making it an excellent choice for weight-conscious sailors seeking durable hardware that doesn't compromise performance.
Designed with plain bearings for simplicity and reliability, the Barton Size 3 pulley is built to endure the rigors of marine environments. Its compact dimensions and lightweight profile make installation and handling straightforward, while the high-strength materials ensure long-term durability. Whether used as part of a purchase system or as a standalone component, this pulley block delivers quality and dependability at sea.

Features:

• Size 3 (45mm) sheave with stainless steel frame for durability

• Advanced materials: 30% fibre glass-filled nylon and Acetal sheaves for strength and weight reduction

• Swivel with becket design for easy attachment and adjustment

• Single sheave for smooth operation and reduced friction

• Suitable for ropes up to 10mm (3/8 inch) in diameter

• High working load limit of 880 lbs and break load of 1,763 lbs

• Lightweight at approximately 3.2 ounces for easy handling

• Plain bearing type for reliable performance in marine conditions

• Compact size ideal for dinghies, dayboats, and lightweight cruisers