Spinlock TSR20 – 3 Sheave Organiser (Standard and Low Profile)
The Spinlock TSR20 3 Sheave Organiser is a high-load aft organiser designed for diverting rope lines from clutches and jammers to winches with precision and minimal friction. Using 20 mm alloy sheaves mounted on plain bearings, the TSR20 provides dependable performance for high-load control systems where compact routing is required.
Its modular design allows sheaves to be repositioned along the alloy top rail to optimise spacing, while the tulip-shaped sheave geometry reduces friction during vertical deflection. The Standard TSR20 and Low Profile TSR20L versions ensure installation flexibility, particularly in tight areas such as mast bases and in-deck tunnels. Fixed sheave inserts can be added to increase the allowable deflection loads for demanding applications.
Key Features
• Three 20 mm alloy sheaves with plain bearings
• Designed for diverting lines aft from clutches and jammers
• Modular sheave spacing on an alloy top rail
• Tulip-shaped design for reduced vertical deflection friction
• Fixed sheave inserts available to increase deflection loads
• Standard and Low Profile options
• Suitable for threading endless lines
• Titanium components available on request
• Custom sheave spacing or mixed sheave sizes available
Load Ratings – TSR20
• Maximum individual sheave load: 1500 kg
• Total combined load: 750 kg × number of sheaves
• 30° deflected rope load: 3000 kg
• 60° deflected rope load: 1500 kg
Applications on Sailing Yachts
• Diverting halyards, tack lines, vang controls, and reefing lines
• High-load rigs requiring precise alignment between clutch and winch
• Mast-base and deck-tunnel installations requiring reduced height
• Performance yachts needing configurable spacing or multiple guide points
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