🛡️Lowest Price Guaranteed! Found a better price? Contact us, we'll match it!🛡️

⚓Anchored in Your Satisfaction! Exceptional service. Hassle-free 90-day returns!

Ronstan Rf55110 Series 55 Ball Bearing Orbit Block Single Becket Swivel Head

MPN: RF55110

SKU: 9316800440405

Shipping Weight: 0.30

Sale price
$45.85
Regular price
$53.95
You save
$8.10 (16%)
Taxes and shipping calculated at checkout
Ready to Ship: 7 In Stock - Ships Out Fast!

Frequently Bought Together

Amazon
American Express
Apple Pay
Diners Club
Discover
Meta Pay
Google Pay
Mastercard
PayPal
Shop Pay
Venmo
Visa

Free Shipping & Returns

No Minimum Purchase Required

90-Day Returns

100% hassle free

Note: We Only Offer Shipping Across The United States

Have a question?
Series 55 Ball Bearing Orbit Block™ - Single - Becket - Swivel Head

Lightweight
Kilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world's lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimises the mass of the inactive return race and hub.

Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.

Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.

Highest Working Load In Its Class
The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximises load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.

The floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modelled to be stress optimised. The Dyneema® Link is produced from FSE Robline SK75 fiber, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.

Features:
  • Ultra Lightweight
  • Low friction 2-stage Orbital ball bearing system
  • Highest working load in its class
  • Low profile and compact
  • High performance cleating
  • Swivel shackle head for unlimited block rotation
  • Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points
  • Ultra low profile integrated becket


Applications:
  • Mainsheet systems on dinghies, sportsboats and small keelboats to 9M(30')
  • Spinnaker sheets on dinghies, sportsboats and small keel boats to 9M(30')
  • Halyard, Vang and Backstay application on boats to 8M(26')
  • Control line applications on larger yachts
  • Ideal use for mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 9M(30')
  • Also ideal with halyard, vang and backstay applications on boats to 8M(26')
  • Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks)
  • Control line applications on larger yachts


Materials:
  • Ball bearings - High compression strength carbon black Acetal
  • Stage 2 bearing - Carbon fiber reinforced, PTFE impregnated Nylon
  • Frame/Cheeks - Toughened, glass fiber reinforced Nylon
  • Rope Link: UV stabilized, multi-strand impregmented SK75 Dyneema®
  • Sheave: Carbon fiber reinforced, PTFE impregnated Nylon
  • Head fitting: Grade 316 stainless steel.


Specifications:
Sheave Ø:55mm(2-5/32")
Max. Rope Ø: 10mm(3/8")
M.W.L.:500kg(1,100lbs)
B. L.:1,000kg(2,200lbs)
Weight:88g(3.1oz)

Specifications

Product: Ronstan Rf55110 Series 55 Ball Bearing Orbit Block Single Becket Swivel Head

Brand: Ronstan

Model: RF55110

Additional Shipping Information:

Shipping Weight: 0.30

Shipping Height: 1.00

Shipping Width: 3.00

Shipping Length: 6.00

Atlantis Showroom accepts returns within 90 days of shipment. However, certain goods such as open software, mapping/chart data cards, international orders, freight truck only items, and special order items are not eligible for return, refund, or exchange.

If your return is accepted, we will provide an exchange for the returned item, a non-transferable merchandise credit, a credit to the payment card or original payment method, a check, or another appropriate remedy that we determine in good faith. To request a return merchandise authorization (RMA), customers can contact us on our website or email us at customerservice@atlantisshowroom.com. We will issue an RMA number and provide instructions for returning the package within a reasonable time frame, usually within 1-3 business days.

ce showroom banner

Did you know our passion extends beyond the ocean?

Visit our other website, CE Showroom, for the latest electronics!

Recommended for You

Recently viewed

Tips, Tricks, and Advice

Marine Wiring: Ensuring Safety and Enhancing Your Sailing Experience
Marine Wiring: Ensuring Safety and Enhancing Your Sailing Experience
January 15, 2024

Marine Wiring: Ensuring Safety and Enhancing Your Sailing Experience

The Ultimate Guide to Ice Fishing Fish Finders: Top Picks for Your Cold Weather Fishing Adventure
The Ultimate Guide to Ice Fishing Fish Finders: Top Picks for Your Cold Weather Fishing Adventure
November 22, 2023

The Ultimate Guide to Ice Fishing Fish Finders: Top Picks for Your Cold Weather Fishing Adventure

From Sun to Snow: A Complete Guide to Prepping Your Boat for the Cold Season
From Sun to Snow: A Complete Guide to Prepping Your Boat for the Cold Season
November 8, 2023

From Sun to Snow: A Complete Guide to Prepping Your Boat for the Cold Season

Fall Fishing Tips - Making the Most of the Cooler Months
Fall Fishing Tips - Making the Most of the Cooler Months
September 12, 2023

Fall Fishing Tips - Making the Most of the Cooler Months

How to Choose the Right Anchor for Your Boat
an image of anchor and chain under the water
July 31, 2023

How to Choose the Right Anchor for Your Boat

Essential Fishing Gear for Beginners: A Comprehensive Guide
Essential Fishing Gear for Beginners: A Comprehensive Guide
July 28, 2023

Essential Fishing Gear for Beginners: A Comprehensive Guide

A Comprehensive Guide to Understanding and Using Fish Finders
A Comprehensive Guide to Understanding and Using Fish Finders
July 12, 2023

A Comprehensive Guide to Understanding and Using Fish Finders

A Comprehensive Guide to Boat Propellers and Outboard Motor Repair
A Comprehensive Guide to Boat Propellers and Outboard Motor Repair
July 4, 2023

A Comprehensive Guide to Boat Propellers and Outboard Motor Repair

A Simple Guide to Choosing the Perfect Trolling Motor
A Simple Guide to Choosing the Perfect Trolling Motor
June 29, 2023

A Simple Guide to Choosing the Perfect Trolling Motor

Choosing the Right GPS Chartplotter for Your Boat
Choosing the Right GPS Chartplotter for Your Boat
June 20, 2023

Choosing the Right GPS Chartplotter for Your Boat

Marine Speakers vs. Subwoofers: Crafting the Ultimate Boat Sound System
Several music speakers are integrated into the luxury yacht hull. Music speaker integrated into the sofa body on the teak deck of a luxury yacht
June 19, 2023

Marine Speakers vs. Subwoofers: Crafting the Ultimate Boat Sound System

Spring Sailing Essentials: Get Ready to Hit the Waves!
image-of-boats-and-pink-blossoms-in-spring
April 10, 2023

Spring Sailing Essentials: Get Ready to Hit the Waves!

Get onboard with Atlantis Showroom!

Subscribe now for a 10% discount, latest collections, and exclusive deals. Don't miss the boat!