N03231 - Barton Marine Barton Size 3 45mm Plain Bearing Pulley | Aztek Computers
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SKU: N8E1TLME07 |  Mfg. Part: N03231  | UPC: 5035088080984  |  0 Reviews  |     Share

N03231 - Barton Marine Barton Size 3 45mm Plain Bearing Pulley Block Double Swivel & Becket

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$54.89  $74.10
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Product Overview

Size 3 45mm Plain Bearing Pulley Block Double 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: 143 g
  • Dimensions: 118 × 46 × 47 mm
  • Size: 3 (45MM)
  • Block Type: Swivel + Becket
  • No. of Sheaves: Double
  • 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)

Expert Overview

The Barton Size 3 45mm Plain Bearing Pulley Block Double Swivel & Becket, part number N03231, is designed for marine applications requiring a robust and compact purchase system. This double-sheave block features a plain bearing design with 45mm Acetal sheaves and a stainless steel frame, reinforced with 30% fiberglass-filled nylon for durability and minimal weight. It is engineered to handle a Safe Working Load (SWL) of 400kg and a Break Load of 800kg, accommodating ropes up to 10mm in diameter. This unit is suitable for use on dinghies, dayboats, and lightweight cruisers for tasks such as mainsheets, vangs, or lead blocks. Its double swivel and becket configuration allows for versatile rigging options, addressing the need for efficient load management in various sailing setups.

Product Details

  • Manufacturer:
  • Model Number:
  • ASIN:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Country of Origin:
  • Barton Marine
  • N03231
  • B07Y8KKMYL
  • 5035088080984
  • New
  • 0.35 lbs
  • 5 X 2 X 3
  • Sep 13, 2026
  • Dec 17, 2025
  • UNITED KINGDOM
Product Identifiers: Brand: Barton Marine • Part #: N03231 • UPC: 5035088080984 • ASIN: B07Y8KKMYL • Category: Pulleys, Block & Tackle

Frequently Asked Questions

What is the maximum rope diameter this pulley block can accommodate?

This pulley block is designed to accommodate a maximum rope diameter of 10mm (3/8").

What is the Safe Working Load (SWL) for this pulley block?

The Safe Working Load (SWL) for this pulley block is 400kg (881lbs).

What type of bearing does this pulley block utilize?

This pulley block utilizes a plain bearing type, designed for durability and efficient operation in marine environments.

What are the primary use cases for this pulley block?

This pulley block is suitable for use as mainsheet, vangs, or lead blocks on dinghies, dayboats, and lightweight cruisers, or wherever a powerful and compact purchase system is required.

N03231 - Barton Marine Barton Size 3 45mm Plain Bearing Pulley Block Double Swivel & Becket

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