Ronstan Qualifies for Free Shipping Ronstan Ball Bearing Orbit Block Single Becket Swivel HD #RF45110

Ronstan Ball Bearing Orbit Block Single Becket Swivel HD #RF45110

$30.56 $35.22 -14% OFF

Ronstan Ball Bearing Orbit Block Single Becket Swivel HD #RF45110

$30.56 $35.22 -14% OFF

Ronstan Ball Bearing Orbit Block Single Becket Swivel HD #RF45110

$30.56 $35.22 -14% OFF
Brand: Ronstan

SKU: RON-RF45110

UPC: 9316800440429

More about this item

Ronstan RF45110 Sailing Accessories

Series 40 Ball Bearing Orbit Block™ - Single - Becket - Swivel Head

Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.

Lightweight
Kilogram for kilogram of working load, BB 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.

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:
  • Spinnaker sheets on dinghies, sportsboats and small keel boats to 5M(16')
  • Halyard, vang and backstay applications on boats to 8M(26')
  • Control line applications on larger yachts


Materials:
  • Ball Bearings - High compression stregnth carbon black Acetal
  • Stage 2 Bearing - Glass fiber reinforced, MoS2 impregnated Nylon
  • Frame/Cheeks - Toughened, glass fiber reinforced Nylon
  • Sheave - Carbon fiber reinforced, PTFE impreganated Nylon
  • Head fitting: Grade 316 stainless steel


Specifications:
Sheave Ø: 40mm(1-9/16")
M.W.L.: 325kg(715lbs)
B. L.: 650kg(1,430lbs)
Weight: 44g(1.6oz)
Normalized SKU: RF45110
UPC Code: 9316800440429
Qualifies for Free Shipping
This item qualifies for free shipping when the order is over $149
$30.56 $35.22 -14% OFF
0 watching this item.
NONE LEFT IN STOCK
LIMITED TIME OFFER 00
days
00
hours
00
minutes
00
seconds

The price of this item will revert back to $35.22 at the end of this countdown.

Customer Reviews

Frequently Asked Questions

First Choice Marine is an online marine retailer offering a wide variety of marine parts and accessories from reputable manufacturers. With access to over 150,000 items through our distributor network, including current inventory, new products, and special orders, we are your go-to source!

Yes, we offer FREE Shipping on most orders over $149 to US-48*.

Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.

  • Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
  • Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
  • Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
  • Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
  • Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
  • In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store

Below the price of the item, on the product page, there is a message indicating the availability of the product.

The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.

We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.

If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.

Free Shipping

On most orders $149+ to the continental 48 US states.

Secure Shopping

Fast, secure checkout with a variety of payment methods.

Shop with confidence

25+ years serving the marine industry.

Support center

Need help? Contact us via live chat, phone, or email.