Ronstan RF35151 30mm Ball Bearing Cheek Block | Orbit Series Fixed Pulley

The Ronstan RF35151 is a compact, lightweight 30mm cheek block from the Orbit Series, designed for permanent mounting on decks, bulkheads, or masts. Its ball bearing sheave delivers smooth, low-friction performance, while the fibre-reinforced composite construction keeps it strong yet ultra-light.

Ideal for control lines, cunninghams, outhauls, and traveller systems, the RF35151 is perfect when a low-profile, fixed block is needed in tight rigging setups. Built to handle medium loads with precision and reliability, it’s a smart choice for dinghy, skiff, and sport boat sailors.

✅ Key Features

• Ronstan RF35151 – 30mm Orbit cheek block

• Ball bearing sheave for smooth, efficient operation

• Fixed-mount design for decks, masts, or bulkheads

• Ultra-light, high-strength composite construction

• Low-profile and compact for tight rigging spaces

• UV-resistant materials for long-lasting marine use

• Ideal for control lines, cunninghams, and outhauls

• Designed for performance dinghies and small sailboats

Ronstan RF35151 30mm ball bearing Cheek block pulley specifications:

• Sheave Ø 30 mm
• Max. Rope Ø 8 mm
• Max. Cable Ø - mm
• Pin Ø - mm
• M.W.L. 300 kg
• B. L. 600 kg
• Weight 21 g