Ronstan RF40100 – 40mm Ball Bearing Single Pulley with Universal Head

The Ronstan RF40100 40mm Single Block with Universal Head is a versatile and lightweight pulley designed for sailing applications that demand efficiency and strength. With a precision-engineered ball bearing sheave and a universal head for flexible mounting, it’s ideal for mainsheets, vangs, control lines, and halyard systems on dinghies and small keelboats.

The UV-resistant glass-fibre reinforced cheeks ensure long-lasting performance in marine environments, while the acetal ball bearing sheave delivers low-friction rope handling under load.

Specifications:

• Product Code: RF40100

• Sheave Diameter: 40mm

• Rope Capacity: Up to 10mm

• Sheave Type: Acetal ball bearing

• Head Type: Universal head with shackle (multi-angle rotation)

• Cheek Material: UV-stable glass-fibre reinforced nylon

• Maximum Working Load (M.W.L.): 325kg

• Breaking Load (B.L.): 700kg

• Weight: Approx. 52g

Key Features:

• Ball bearing sheave for smooth, low-friction operation

• Universal head allows flexible alignment and easy mounting

• Lightweight yet strong – ideal for performance sailing

• Corrosion-resistant construction for saltwater use

• Suitable for mainsheets, halyards, vangs, and control lines

Upgrade your rigging with the Ronstan RF40100 – a reliable 40mm universal head pulley trusted by sailors worldwide. Now available at Barton Marine NZ.