The Ronstan RF1743 19mm Acetal Sheave is a high-strength, low-friction pulley wheel designed for marine rigging systems, block repairs, and custom installations. Manufactured from UV-resistant acetal, this sheave offers excellent durability, impact resistance, and smooth operation in demanding marine environments.

With its self-lubricating properties, the RF1743 delivers efficient line handling without the need for bearings, making it a reliable choice for both static and dynamic load applications.

Ideal for replacing worn sheaves or building custom pulley systems, this component is commonly used across dinghies, trailer yachts, and general marine hardware setups in New Zealand.

Key Features

• 19mm acetal sheave for compact, reliable performance
• Self-lubricating material for smooth, low-friction operation
• UV-resistant construction for long service life in marine environments
• High impact and wear resistance for durability
• Suitable for rope-based pulley systems and repairs
• Lightweight, maintenance-free design
• Trusted Ronstan marine hardware quality

Specifications

• Outer Diameter: 19mm
• Width: 9.5mm
• Bore Diameter: 8.2mm
• Max Rope Diameter: approx. 6mm
• Material: UV-stabilised acetal
• Bearing Type: Solid (plain bearing)
• Application: General-purpose sheave for rope systems

Why Choose the Ronstan RF1743?  

For New Zealand sailors, maintaining efficient rigging systems is essential. The RF1743 offers a cost-effective and durable replacement sheave, ensuring smooth operation and extended lifespan of your pulley systems.

Its simple, reliable design makes it ideal for general-purpose sailing applications, DIY rigging upgrades, and maintenance work, delivering consistent performance in NZ coastal conditions.