The Barton Marine Size 3 45mm Plain Bearing Pulley Block Double with Swivel delivers robust performance in a compact package, built for sailors who demand reliability on deck. Designed for mainsheet, vangs, and lead blocks, this double-block setup provides a powerful, smooth purchase on dinghies, dayboats, and lightweight cruisers.
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Block configuration: Size 3, plain bearing, double with swivel
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Sheave diameter: 45 mm (1 3/4")
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Rope compatibility: Works with rope up to 10 mm (3/8")
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Frame material: Stainless steel for rugged durability and corrosion resistance
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Sheave material: Acetal
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Internal construction: 30% fiberglass-filled nylon framework to maximize strength while keeping weight down
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Mounting versatility: Double block with swivel to simplify line routing and maximize purchase efficiency
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Applications: Suitable for mainsheet, vangs, and lead blocks on dinghies, dayboats, and lightweight cruisers
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Manufacturer: Barton Marine
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Part number: N03230
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UPC: 5035088080977
Designed for performance in both racing and cruising contexts, this block minimizes friction, enhances haul efficiency, and stands up to frequent sailing use. Its plain bearing design promotes smooth operation and straightforward maintenance, while the stainless steel frame delivers rugged durability and corrosion resistance. The fiberglass-filled nylon core paired with Acetal sheaves provides high strength with minimized weight, helping keep deck handling efficient and reliable. The swivel-enabled double block also improves line routing and overall purchase efficiency, making it a dependable upgrade for your deck hardware.
