✨ Get 20% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Best Seller Ronstan Series 40 Bb Orbit Quad Block W/ Swivel Shackle & Becket Set [sRZrvocJ]

$30.99 $99.99 -69%

Ronstan Series 40 BB Orbit Quad Block: Premium Marine EquipmentThe Ronstan Series 40 BB Orbit Quad Block is a top-tier marine equipment designed for those who demand excellence in performance and reliability. This innovative block combines the latest

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Ronstan Series 40 BB Orbit Quad Block: Premium Marine Equipment

The Ronstan Series 40 BB Orbit Quad Block is a top-tier marine equipment designed for those who demand excellence in performance and reliability. This innovative block combines the latest advancements in materials and technology to deliver a product that is both lightweight and robust. Engineered with a 2-stage ball bearing system, the Series 40 offers an unparalleled level of efficiency and ease of use, making it an ideal choice for a variety of sailing applications.
  • Dynamic and Status Load Rating: The Series 40 stands out with its class-leading dynamic and status load ratings, ensuring that it can handle the toughest conditions with ease.
  • Material Innovation: The use of toughened, glass fibre reinforced nylon replaces traditional stainless steel straps, resulting in a lighter yet stronger block that offers the perfect balance of performance and reliability.

Key Features and Specifications

The Ronstan Series 40 BB Orbit Quad Block is packed with features that set it apart from other marine blocks on the market. Its low friction 2-stage ball bearing system allows for effortless trimming and precise control, while the soft attachment, lashing, and traditional swivel shackle head options provide versatile use in various applications. The block's low profile and compact design ensure it can be easily integrated into any sailing setup.
  • Efficient and Easy Trimming: The 2-stage ball bearing system minimizes friction, providing smooth and efficient trimming for better control and performance.
  • High Performance Cleating: The carbon reinforced C-Cleat™ ensures secure rope holding with low entry and exit efforts, allowing for fast action from any angle.
specifications include a sheave diameter of 1 9/16 in. (40mm), a maximum rope diameter of 3/8 in. (10mm), and a maximum working load of 1320 lb. (600kg). Its weight is a mere 7.1 oz. (192g), making it one of the lightest blocks in its class.

Practical Applications and Versatility

The Ronstan Series 40 BB Orbit Quad Block is highly versatile and suitable for a wide range of applications on boats of different sizes. It is perfect for mainsheet systems on spinnaker sheets on dinghies, spinnaker sheets on dinghies, off-the-beach catamarans, and sportsboats, as well as halyard, vang, and backstay applications on boats up to 9m (30ft). Its high load versions are designed for applications where high dynamic or static loads are expected, featuring a high strength grade 2205 stainless steel sheave & hub and a triple bearing race for exceptional performance.
  • Applications: From dinghies to larger yachts, the Series 40 BB Orbit Quad Block is designed to meet the demands of various sailing applications.
  • Materials: Constructed with toughened, glass fibre reinforced nylon for the frame/cheeks, grade 316 stainless steel for head fittings, hubs & fasteners, and high compression strength acetal for the BB sheaves and balls, ensuring durability and longevity.

What Our Customers Say

January 12, 2026

Absolutely no complaints!

It's a very solid and high-quality item. I'm thoroughly impressed.

- Caleb I..

January 12, 2026

Absolutely no complaints!

A phenomenal product. It performs at a professional level.

- Lila T..

January 12, 2026

Absolutely no complaints!

This product is a brilliant investment. It is a high-quality, excellent item.

- Destiny O..

Write a Review

You Might Also Like

Discover more great products from our collection.

Custom text: consign
here

Custom text: consign here

(887)
$50.99 $163.99 -69%
DJI Mini 2 Fly More Combo

DJI Mini 2 Fly More Combo

(98)
$71.99 $230.99 -69%
Square Eclipse Clock

Square Eclipse Clock

(929)
$37.99 $121.99 -69%
Rolex Explorer 114270

Rolex Explorer 114270

(350)
$61.99 $198.99 -69%
B 110 R Bp Pack

B 110 R Bp Pack

(81)
$102.99 $329.99 -69%
Skye Montana Sapphire Necklace

Skye Montana Sapphire Necklace

(433)
$61.99 $198.99 -69%

Copyright 2026 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY