Barton N03250 - Double Upright Block Size 3 45mm – Plain Bearing, 2x Ø45mm Sheaves, Max Rope 10mm

ID 1360709

$ 60.19

1-2 weeks delivery time

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The Barton N03250 is a Size 3 double upright block featuring two 45 mm plain bearing sheaves for ropes up to 10 mm. Weighing 167 g, it is designed for deck-mounted applications requiring stable line guidance and fixed positioning. With a safe working load of 400 kg and break load of 800 kg, it provides reliable performance in mainsheet, vang, and control line systems.

Description
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Barton N03250 - Double Upright Block Size 3 45mm – Plain Bearing, 2x Ø45mm Sheaves, Max Rope 10mm

The Barton N03250 Double Upright Block is part of the Size 3 (45 mm) range and features two plain bearing sheaves for dependable load handling. The upright design allows secure mounting directly onto the deck, providing a fixed and stable line lead position.

Upright blocks are specifically designed to be installed on deck surfaces, ensuring consistent line routing and improved control. The double sheave configuration enables efficient load distribution and increased mechanical advantage in compact systems. The Size 3 range incorporates modern construction with stainless steel frames and advanced materials, including 30% glass fibre reinforced nylon cheeks and acetal sheaves, delivering high strength while maintaining low weight. The plain bearing system is well suited for higher static loads and continuous operation.

Key Features

Double sheave upright block for deck mounting
Plain bearing sheaves for reliable load handling
Fixed position design for stable line guidance
Efficient load distribution in multi-purchase systems
High-strength and lightweight construction

Technical Specifications

Part Number	N03250
Block Type	Double Upright Block
Size	Size 3 (45 mm)
Sheave Diameter	2 × 45 mm x 13 mm (1 3/4" x 33/64")
Bearing Type	Plain Bearing
Number of Sheaves	Double
Max Rope Diameter	10 mm (3/8")
Safe Working Load (SWL)	400 kg (880 lbs)
Break Load	800 kg (1760 lbs)
Weight	167 g
Dimensions	74 × 70 × 60 mm
Materials	Glass fibre reinforced nylon cheeks, acetal sheaves, 316 stainless steel fittings, brass plain bearings

Applications

Deck-mounted control line systems
Mainsheet and vang setups
Lead blocks for fixed routing
Dinghies, dayboats and small cruising yachts

The Barton N03250 provides a stable and efficient solution for fixed-position line control, ensuring reliable performance and clean line management in demanding sailing environments.