Ronstan Series 30 Ball Bearing Orbit Block - Single - Becket - Lashing head

The Series 30 Ball Bearing Orbit Block™ is a high-performance single becket lashing head designed specifically for marine and boating applications. Engineered with advanced composite materials and precision ball bearings, this orbit block ensures optimal performance, durability, and reliability on the water.

Key Features

• Lightweight: Crafted from fiber-reinforced composites, the orbit block offers exceptional strength without adding unnecessary weight to your vessel.
• Highest Working Load in Class: Capable of handling up to 300kg (660lbs) with a breaking load of 600kg (1,320lbs), ensuring robust performance under demanding conditions.
• Secure and Versatile Attachment: Multiple attachment options allow for flexible installation and secure connections in various setups.
• Low Profile and Compact: Its sleek design minimizes drag and enhances the aesthetic of your rigging setup.
• Ultra Low Profile Thru-Sheave Becket: Enhances efficiency by reducing friction and facilitating smoother movement of lines.
• Shackle Compatibility: The RF35101 model accepts RF1850S shackles in both orientations, enabling the creation of a conventional loop top block for standard configurations.
• Self-Lubricating Components: Features Nylatron® sheave and full contact bearings that maintain low friction and handle high dynamic loads effectively.

Ideal Applications

• Mainsheet and Spinnaker Sheets: Perfect for dinghies up to 5 meters (16 feet), providing reliable control and ease of handling.
• Halyard, Vang, and Backstay Systems: Suitable for boats up to 5 meters (16 feet), enhancing the performance of your sail control systems.
• Control Lines on Yachts: Ideal for larger yachts, offering precise line management and dependable operation.

Superior 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

Sheave Diameter:	30mm (1-3/16")
Maximum Rope Diameter:	8mm (5/16")
Maximum Working Load (M.W.L.):	300kg (660lbs)
Breaking Load (B.L.):	600kg (1,320lbs)
Weight:	22g (0.8oz)

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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.