Upgrade your sailing system with Ronstan 20mm Ball Bearing Pulleys from Barton Marine NZ. Designed for lightweight performance, smooth operation, and exceptional strength, these premium sailing blocks are ideal for dinghies, sports boats, trailer yachts, and high-performance control line systems. Ronstan's Series 20 Ball Bearing Orbit Blocks™ feature an advanced two-stage bearing system engineered to deliver one of the highest strength-to-weight ratios in their class while minimising friction.
At Barton Marine NZ, we stock a comprehensive range of genuine Ronstan 20mm Ball Bearing Pulleys, including single, double, triple, stand-up, cheek, lashing, and high-load models to suit virtually every sailing application.
Complete Range of Ronstan 20mm Ball Bearing Blocks
Browse our collection, including:
20mm single ball bearing blocks
Double ball bearing blocks
Triple ball bearing blocks
Blocks with becket
Stand-up blocks
Cheek blocks
Lashing Orbit™ blocks
High-load (HHL) blocks
Cam cleat blocks
Performance sailing pulleys
Whether you're replacing worn hardware or upgrading a high-performance rigging system, Ronstan 20mm blocks deliver outstanding reliability and efficiency.
Engineered for Maximum Efficiency
Ronstan 20mm Ball Bearing Pulleys are designed to reduce friction and improve line handling, making sail adjustments smoother and more responsive. Their advanced bearing system and lightweight composite construction provide exceptional performance while maintaining impressive working loads. Some lashing models are capable of handling loads up to 250kg while weighing only 9 grams.
Benefits of Ronstan 20mm Ball Bearing Pulleys
Low-friction ball bearing technology
Lightweight, compact design
Exceptional strength-to-weight ratio
Marine-grade corrosion-resistant materials
Smooth and efficient rope handling
High working load capacity
Long-lasting performance with minimal maintenance
These features improve sail trim, reduce rope wear, and make control systems more efficient.
Ideal for Multiple Sailing Applications
Ronstan 20mm Ball Bearing Pulleys are commonly used for:
Cunningham systems
Boom vang systems
Outhauls
Halyard controls
Mainsheet systems
Barber haulers
Spinnaker controls
Control lines
High-performance dinghy and skiff rigging
Their compact size makes them ideal where space is limited but smooth performance and strength are essential.
Built for New Zealand Sailing Conditions
New Zealand's sailing conditions demand hardware that can withstand saltwater, UV exposure, and continuous use. Ronstan 20mm Ball Bearing Pulleys are manufactured using high-quality marine materials and precision engineering to deliver reliable performance season after season.
Whether you're upgrading your rigging, replacing a worn pulley, or building a modern sail control system, Barton Marine NZ offers a premium selection of Ronstan 20mm Ball Bearing Pulleys designed for precision, durability, and smooth performance. Browse our collection today and equip your boat with sailing hardware trusted by sailors around the world.
