Ronstan Series 30 Ball Bearing Orbit Block - Triple

Enhance your vessel's sailing performance with the Series 30 Ball Bearing Orbit Block™ - Triple. Engineered for durability and efficiency, this orbit block combines superior materials and precision design to deliver unmatched strength and minimal friction, ensuring smooth sail handling for your marine adventures.

Key Features

• Lightweight Construction: Reduces overall sailboat weight without compromising strength.
• Superior Load Capacity: Offers the highest working load in its class, supporting heavy-duty sailing applications.
• Secure & Versatile Attachment: Multiple attachment options provide flexibility for various rigging setups.
• Low Profile Design: Compact size ensures it fits seamlessly into your sailboat's existing rigging system.

Ideal Applications

• Mainsheet and Spinnaker Sheets: Perfect for dinghies up to 5 meters (16 feet), ensuring reliable sheet management.
• Halyard, Vang, and Backstay: Suitable for boats up to 5 meters (16 feet), providing robust support for critical rigging lines.
• Control Lines: Ideal for larger yachts, offering precise control and smooth operation of sail adjustments.

Premium Materials

Component	Material
Sheave	High compression strength carbon black Acetal
Ball Bearings	High compression strength Acetal
Frame/Cheeks	Toughened, glass fiber reinforced Nylon
Link	UV stabilized, multi-strand impregnated SK75 Dyneema®

Technical Specifications

Specification	Details
Sheave Diameter	30mm (1-3/16")
Maximum Rope Diameter	8mm (5/16")
Minimum Working Load (M.W.L.)	550kg (1,210lbs)
Breaking Load (B.L.)	1,100kg (2,430lbs)
Weight	73g (2.6oz)

Additional Resources

Download the Quick Guide (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.