Ronstan RF50101 – 50mm Ball Bearing Single Pulley with Loop Head

The Ronstan RF50101 50mm Ball Bearing Pulley with Loop Head is a high-performance, lightweight block designed for soft attachment rigging systems on yachts, keelboats, and high-performance dinghies. Its loop head allows for flexible mounting using rope or webbing, reducing weight and noise in sensitive rigging setups.

The block features a 50mm acetal sheave with precision ball bearings, delivering ultra-smooth rope handling under load. With reinforced composite cheeks and corrosion-resistant materials, the RF50101 is built to perform in harsh marine conditions.

Specifications:

• Product Code: RF50101

• Sheave Diameter: 50mm

• Rope Capacity: Up to 12mm

• Sheave Type: Acetal ball bearing

• Head Type: Loop head (soft attach / lashing compatible)

• Material: Glass-fibre reinforced nylon cheeks

• Maximum Working Load (M.W.L.): 450kg

• Breaking Load (B.L.): 1000kg

• Weight: Approx. 78g

Key Features:

• Ball bearing sheave ensures low-friction, high-efficiency line handling

• Loop head for lightweight, quiet, soft mounting

• Durable and UV-stable composite construction

• Ideal for mainsheets, halyards, and control lines

• Suited for performance keelboats, yachts, and high-load dinghy applications

• Designed and trusted by Ronstan for reliable marine performance

Choose the Ronstan RF50101 when you need a strong, smooth, and flexible solution for your soft-attach rigging. Available now from Barton Marine NZ.