Blocks

About Blocks

Marine Blocks: Buyer’s Guide

Introduction

For avid sailors and boating enthusiasts, selecting the right marine blocks is crucial for a seamless and safe sailing experience. Marine blocks play an essential role in the efficient and effective operation of a boat's rigging system. This guide is designed to help you understand the nuances of marine blocks and make an informed decision when purchasing them.

Section 1: What Are Marine Blocks?

Marine blocks are pulleys used in the rigging of boats and ships. They facilitate the changing of direction and point of application of a force applied to a rope. In simpler terms, they are used to lift heavy loads, adjust sails, and aid in maneuvering the boat.

Types of Marine Blocks

Single Blocks: Used for basic applications, these have one wheel and one sheave.
Double Blocks: With two sheaves, they offer more mechanical advantage.
Swivel Blocks: These can rotate to prevent rope twisting.
Fiddle Blocks: Combine different sizes of sheaves in one block for versatile applications.

Section 2: Factors to Consider When Buying Marine Blocks

Material and Durability

Marine blocks are typically made from stainless steel or composite materials. The choice depends on the sailing conditions and the required strength-to-weight ratio.

Load Capacity and Size

Consider the maximum load the block will handle and ensure it matches your requirements. The size of the block should correspond with the thickness and strength of the ropes used.

Ease of Use and Maintenance

Look for blocks that are easy to install and maintain. Blocks with ball bearings offer smoother operation but may require more maintenance than plain bearing blocks.

Compatibility

Ensure the blocks are compatible with your boat’s rigging system and the type of sailing you do.

Section 3: Top Brands and Their Offerings

Harken Blocks

Known for high-quality, durable marine blocks. They offer a wide range of blocks for various sailing needs.

Lewmar Blocks

Offers a variety of blocks that balance performance and price, suitable for both casual and competitive sailors.

Ronstan Blocks

Famous for innovative designs, Ronstan’s blocks are popular among those looking for high-performance gear.

Section 4: Maintenance and Care for Marine Blocks

Regular maintenance includes cleaning, inspecting for wear and tear, and lubrication. Always follow the manufacturer’s guidelines for care and maintenance to ensure longevity and optimal performance.

Conclusion

Choosing the right marine block involves understanding your sailing needs, the types of blocks available, and the best brands in the market. With this guide, you are now equipped to make an informed decision that enhances your boating experience.

FAQs

Q: Can I use any block for any type of sailing?
A: No, it's important to choose a block based on the specific needs of your sailing activity.

Q: How often should I replace my marine blocks?
A: It depends on the usage and maintenance. Regular inspection will help you determine when a replacement is needed.

Blocks

Lewmar Synchro Control Block - 30 mm (1 1/4")

Lewmar Synchro Double Block - 60 mm (2 3/8")

Antal OPF Simple Web Block

Wichard Snatch Block - 12 mm (15/32") - 34500

Harken Double Fastener Eyestrap - 38 mm (1 1/2") - 074

Harken Wire Cheek Bullet Block - 29 mm (1 1/8") - 109

Harken Micro Triple Block with Cam Cleat and Becket - 22 mm (7/8") - 231

Harken Stand-Up Boot

Lewmar HTX Control Single Foot Block - 40 mm (1 9/16") - 29194061

Barton Size 4/5 Triple Block

Barton Ball Bearing Cheek Block

Barton Size 1 Single Block

Barton Ball Bearing Double Tang Single Block

Allen Brothers Stanchion Mounted Single Furling Lead Block - 25 mm (1") - PA0450A-1

Harken Aluminum Element Fiddle Block Swivel - 45 mm (1 3/4") - 6233

Harken Aluminum Element Foot Block - 45 mm (1 3/4") - 6237

Harken Carbo Air Block Fiddle Block - 57 mm (2 1/4") - 2673

Harken Carbo Air Block - 75 mm (2 15/16") - 2661

Harken Carbo Air Cheek Block - 75 mm (2 15/16") - 2672

Harken Midrange ESP Stand-up Base - 1634

Harken T2 Soft-Attach Loup - 140 mm (5 1/2") - 2154

Harken Micro Fiddle Block - 22 mm (7/8") - 245

Harken Carbo Air Block - 29 mm (1 1/8") - 341

Harken Carbo Air Block Double Block - 29 mm (1 1/8") - 343

Harken Carbo Air Block Triple Block - 29 mm (1 1/8") - 346

Harken Big Bullet Double Block - 38 mm (1 1/2") - 128

Ronstan Series 20 Block - 20 mm (3/4") - RF20101

Ronstan Series 20 Exit Block - 20 mm (3/4") - RF20711HL

Ronstan Series 30 Ball Bearing Orbit Block - 30 mm (1 3/16") - RF35151

Ronstan Series 30 Orbit Double Block - 30 mm (1 3/16") - RF35212

Ronstan Series 40 Block - 40 mm (1 9/16") - RF41110

Ronstan Snatch Block - 45 mm (1 3/4") - RF6741

Ronstan Series 50 Block - 50 mm (2") - RF51200

Ronstan Series 55 RT Orbit Ratchet Block - 55 mm (2 5/32") - RF56100

Ronstan Series 60 Core Double Block - 60 mm (2 3/8") - RF64202

Ronstan Series 75 Core Stand-Up Block - 75 mm (3") - RF74140

Ronstan Dyneema Link - Soft Attachment Loop - RF9004-09

Ronstan Dyneema Link 55 Series Double and Triple - RF9005-10

Ronstan Dyneema Link 55 Series Single - RF9004-08

Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15171

Ronstan Series 50 Fiddle Block - RF51510

Ronstan Series 60 AP Block - RF66100

Schaefer Aluminum Sheave - 2" - 62-023-15BW

Schaefer 3 Series Block - 03-03

Schaefer 5 Series Block - 505-15

Schaefer 5 Series Fiddle Block - 504-75

Schaefer 7 Series Triple Block - 705-95

Lewmar Synchro Control Cheek Block - 30 mm (1 3/16") - 29901360BK