Barton N03631 - Fiddle Block Swivel with Becket and Cam Size 3 30/58mm – Plain Bearing, Ø30/58mm Sheaves, Max Rope 10mm

ID 1360721

$ 124.39

1-2 weeks delivery time

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The Barton N03631 is a Size 3 fiddle block with swivel, becket, and cam cleat, featuring plain bearing sheaves (30/58 mm) for ropes up to 10 mm. Weighing 243 g, it is designed for high static loads with a safe working load of 400 kg and break load of 800 kg. The integrated cam cleat ensures secure line holding, while the swivel and becket provide flexible alignment and rope termination, making it ideal for compact control systems.

Description
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Barton N03631 - Fiddle Block Swivel with Becket and Cam Size 3 30/58mm – Plain Bearing, Ø30/58mm Sheaves, Max Rope 10mm

The Barton N03631 Fiddle Block with Swivel, Becket and Cam is part of the Size 3 (45 mm) block range, engineered for strength and efficient load handling. It features a plain bearing fiddle sheave configuration (30/58 mm), optimized for higher static load applications.

Manufactured using 30% glass fibre reinforced nylon side plates and an internal stainless steel frame, this block ensures durability while maintaining structural strength. The swivel shackle allows free rotation under load for optimal alignment, while the integrated becket enables rope termination and the cam cleat provides quick and secure line locking for precise control.

Key Features

Fiddle block with swivel, becket, and integrated cam cleat
Plain bearing sheaves for high load applications
Cam cleat for secure and fast line handling
Swivel for flexible alignment and reduced line twist
Robust construction – 243 g

Technical Specifications

Part Number	N03631
Block Type	Fiddle Swivel + Becket + Cam
Size	Size 3 (45 mm)
Sheave Diameter	30 mm / 58 mm
Sheave Size	30/58 × 13 mm (1 3/16" / 2 9/32" × 33/64")
Bearing Type	Plain Bearing
Number of Sheaves	Fiddle (Double)
Max Rope Diameter	10 mm (3/8")
Safe Working Load (SWL)	400 kg (881 lbs)
Break Load	800 kg (1763 lbs)
Weight	243 g
Dimensions	175 × 92 × 68 mm
Materials	30% glass fibre reinforced nylon cheeks, Acetal sheaves, stainless steel frame

Applications

Mainsheet and vang systems with integrated control
Downhauls and kicking straps
Multi-purchase systems with cam cleat
Dinghies and small cruising yachts

The Barton Size 3 fiddle blocks with cam cleat are engineered for efficient control and reliable load handling, delivering dependable performance in demanding sailing conditions. :contentReference[oaicite:0]{index=0}