Ronstan RF50100 – 50mm Ball Bearing Single Pulley with Universal Head

The Ronstan RF50100 50mm Single Pulley with Universal Head delivers superior strength, low-friction performance, and versatile mounting for a wide range of sailing applications. Featuring a ball bearing acetal sheave and a fully articulating universal head, this pulley offers smooth rope handling under high load conditions.

Built for durability and efficiency, the RF50100 is perfect for use on keelboats and larger dinghies where high working loads and minimal friction are essential. It’s suitable for use in mainsheets, halyards, vangs, and control systems.

Specifications:

• Product Code: RF50100

• Sheave Diameter: 50mm

• Rope Capacity: Up to 12mm

• Sheave Type: Acetal ball bearing

• Head Type: Universal head with shackle

• Material: Glass-fibre reinforced nylon cheeks

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

• Breaking Load (B.L.): 1000kg

• Weight: Approx. 86g

Key Features:

• High-performance ball bearing sheave for low-friction rope handling

• Universal head allows flexible mounting and optimal alignment

• Lightweight and corrosion-resistant materials

• Ideal for halyards, sheets, control lines, and more

• Suitable for yachts, keelboats, and large dinghies

• Trusted Ronstan engineering for dependable marine performance

The Ronstan RF50100 50mm Universal Pulley is the go-to block for high-load, smooth-action sailing systems. Now available at Barton Marine NZ.