Ronstan RF30711 – 30mm ball bearing single exit block with stainless steel cover plate for through-deck rope routing Ronstan RF30711 – 30mm ball bearing single exit block with stainless steel cover plate for through-deck rope routing
Ronstan RF30711 – 30mm ball bearing single exit block with stainless steel cover plate for through-deck rope routing

Ronstan

Ronstan RF30711 – 30mm Ball Bearing Single Exit Block with Cover Plate

$49.80
Tax included.

The Ronstan RF30711 30mm Ball Bearing Exit Block is a compact and efficient through-deck or bulkhead-mounted block, ideal for routing lines internally on dinghies, catamarans, and small keelboats. Featuring a precision acetal ball bearing sheave and a stainless steel cover plate, it offers low-friction performance and long-lasting reliability in tough marine conditions.

Designed for use where control lines or halyards need to pass cleanly through decks or bulkheads, this block ensures smooth operation while protecting your deck and maintaining a tidy finish.

Specifications:

  • Product Code: RF30711

  • Sheave Diameter: 30mm

  • Rope Capacity: Up to 8mm

  • Sheave Type: Acetal ball bearing

  • Mount Type: Through-deck or bulkhead with stainless steel cover plate

  • Cheek Material: Glass-fibre reinforced nylon

  • Cover Plate: Polished stainless steel

  • Maximum Working Load (M.W.L.): 250kg

  • Breaking Load (B.L.): 550kg

  • Weight: Approx. 45g

Key Features:

  • Ball bearing sheave ensures smooth, low-friction rope travel

  • Stainless steel cover plate for clean installation and strength

  • Compact design ideal for small boats and tight deck layouts

  • UV-resistant composite construction for marine durability

  • Perfect for halyards, vang lines, and control systems

  • Designed for high-performance dinghies and small keelboats

Upgrade your rigging with the Ronstan RF30711 Exit Block for reliable and smooth line management through decks or structures — now available at Barton Marine NZ.