Blocks

  1. Ronstan Split Cotter Ring

    $2.48 - $4.40
    2
  2. 9% off

    Ronstan Split Nylon Bush

    $2.80
  3. Harken Stand-Up Spring - 19 mm (3/4") - 097

    $2.88
    0
  4. 72% off

    Allen Brothers Single Block - Mid Boom - 38 mm (1 1/2") - A.278

    $2.92
    1
  5. 59% off

    Allen Brothers Single Block with Ingerfield Clip - Laser Traveler - 29 mm (1 1/16") - A.178-74

    $3.07
    0
  6. 9% off

    Ronstan Black Nylon Fairlead - 4 mm (5/32") - PNP54BBLK

    $3.09
  7. Harken Stand-Up Spring - 22 mm (7/8") - 071

    $3.25
    0
  8. 10% off

    Ronstan Angled Split Nylon Bush - 4 mm (5/32")

    $3.47
  9. Up to 11% off

    Ronstan Bridge Eye Fairlead

    $4.11 - $6.67
  10. Up to 11% off

    Ronstan Nylon Ring

    $4.11 - $6.67
  11. Up to 11% off

    Ronstan Plastic Fairlead

    $4.11 - $15.67
  12. Up to 11% off

    Ronstan Stay Bush

    $4.11 - $6.67
  13. Ronstan Trapeze Fairlead - 7 mm (1/4") - RF9

    $4.58
  14. 22% off

    Ronstan Link Retainer Clips - RF40001

    $5.19
    0
  15. Barton Plain Bearing Rope Sheave

    $5.22
  16. Wichard Polycarbonate Sheave

    $5.48 - $18.25
  17. Barton Plastic Spinner Fairlead - 42201

    $6.14
  18. 57% off

    Allen Brothers Plain Block - Rear Boom - 38 mm (1 1/2") - A.378

    $6.24
    1
  19. Barton K Cam Cleat Wire Fairlead

    $6.54 - $7.81
  20. Barton Stainless Steel Stand Up Spring

    $6.58 - $17.29
  21. Ronstan Replacement 55 Series Retainer Clip - RF50001

    $7.23
    0
  22. 23% off

    Ronstan Link Retainer Clips - RF40002

    $7.51
    0
  23. Ronstan Series 40 Standup Spring - RF319

    $7.89
    1
  24. Barton Tapered Spring for Stand-Up Block - 60119

    $8.28
  25. 11% off

    Harken Micro Flairlead

    $8.82
    0
  26. Barton Plastic Sheet Fairlead - 42200

    $9.29
  27. Wichard Stand Up Spring

    $9.75 - $12.77
  28. 11% off

    Harken Standard Flairlead

    $9.81
    0
  29. 23% off

    Ronstan Replacement 70 Series Retainer Clip - RF70001

    $10.10
    0
  30. 18% off

    Ronstan Fairlead - 9/16" (14 mm) - RF59

    $10.19
  31. Harken Bullseye Fairlead - 38 mm (1 1/2") - 237

    $10.40
    0
  32. Barton Size 2 Curved Backing Plate for Cheek Block - N02161

    $10.83
  33. 11% off

    Ronstan Series 14/19 Bush - RC00020

    $11.14
  34. 11% off

    Ronstan Push-In Bush - PNP181

    $11.79
  35. Up to 11% off

    Ronstan Plastic Fairlead with Stainless Steel Liner

    $11.79 - $19.50
  36. Ronstan Series 25 Ball Bearing Acetal Sheave - RF28000

    $12.03
  37. Ronstan All Purpose Sheave

    $12.23 - $118.40
  38. Spinlock WL Furling Line Lead Replacement Sheave - WL-SHEAVE

    $12.29
  39. 11% off

    Ronstan Series 6/8/22 Bush - RC00021

    $12.34
  40. Wichard Fixed Eye Mini Block - 12 mm (15/32") - 60600W

    $12.87
  41. Barton Size 0 Single Block

    $12.96 - $36.20
  42. Up to 11% off

    Suncor Bullseye Fairlead

    $13.03 - $24.05
    2
  43. Up to 11% off

    Ronstan Glue-In Stainless Steel Lined Bush

    $13.08 - $19.50
  44. Tylaska Low-Friction Ring Ferrule

    $13.15 - $101.37
    2
  45. Barton Size 3 Curved Backing Plate for Cheek Block - N03161

    $13.54
    0
  46. 19% off

    Ronstan Series 30 Loop Top Utility Block - RF280

    $14.29
  47. Ronstan Series 60 All Purpose Sheave - 2 3/8" (60 mm) - RF437

    $14.30
  48. Barton Size 1 Lead Block - N01190

    $14.78
 
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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.