Blocks

  1. Ronstan Glass Reinforced Nylon Sheave

    $17.11 - $29.99
  2. Up to 12% off

    Ronstan Plastic Fairlead

    $2.37 - $10.18
  3. Up to 25% off

    Lewmar HTX Triple Block - 50 mm (2")

    $163.99 - $206.99
    0
  4. Up to 15% off

    Lewmar HTX Triple Block - 60 mm (2 3/8")

    $174.59 - $241.39
    0
  5. Lewmar Synchro Triple Block - 60 mm (2 3/8")

    $105.99 - $170.99
    1
  6. Up to 10% off

    Antal OPF Swivel Block

    $77.39 - $132.29
    0
  7. Schaefer 7 Series Cheek Block - 704-10

    $199.99
    0
  8. 10% off

    Schaefer 7 Series Double Block - 706-25

    $260.99
    0
  9. 10% off

    Schaefer 7 Series Triple Block - 704-94

    $242.99
    0
  10. 25% off

    Schaefer 7 Series Triple Block - 705-95

    $231.74
    0
  11. 10% off

    Schaefer 8 Series Block - 08-15

    $320.39
    0
  12. 25% off

    Schaefer 8 Series Stand-Up Swivel Block - 08-62-UC

    $343.49
    0
  13. 25% off

    Schaefer Clamp-On Lead 5-Block Kit with 90'-3/8" Line - 3100-19

    $409.49
    0
  14. 15% off

    Schaefer Clear Step Furling Lead Block Kit - 300-76

    $398.64
    0
  15. 10% off

    Schaefer Deck Organizer - 504-81

    $164.69
    0
  16. 10% off

    Schaefer Deck Organizer - 705-81

    $317.69
    0
  17. 10% off

    Schaefer Series 5 Deck Plate Adapter - 504-02

    $94.49
    0
  18. 40% off

    Schaefer Series 5 Triple Block - 505-90

    $131.39
    0
  19. Harken Wire Bullet Block - 29 mm (1 1/8") - 098

    $26.95
    0
  20. Harken Aluminum Mastbase Block - 57 mm (2 1/4") - 1988

    $241.95
    0
  21. Harken Wire Thru-Deck Block - 51 mm (2") - 310

    $126.95
    0
  22. Harken In-Line Exit Block - 16 mm (5/8") - 368

    $67.95
    0
  23. Harken Forkhead Wire Block - 25 mm (1") Becket - 466

    $49.95
    0
  24. Harken Sheave - 76 mm (3") - 500

    $243.95
    0
  25. Harken Aluminum Element Stand-Up Block with Becket - 45 mm (1 3/4") - 6251

    $182.65
    0
  26. Harken Carbo Clew Block Assembly - 29 mm (1 1/8") - 371

    $36.95
    0
  27. Harken Single Block with Becket - 16 mm (5/8") - 405

    $20.95
    0
  28. Harken Triple Block with Becket - 16 mm (5/8") - 409

    $54.95
    0
  29. Harken Single Block with Swivel - 16 mm (5/8") - 417

    $31.95
    0
  30. 10% off

    Lewmar Size 3 Snatch Block - 19830500

    $378.89
    0
  31. Ronstan Series 20 Linked Block - 20 mm (3/4") - RF20284

    $28.33
    0
  32. 19% off

    Ronstan Series 30 Orbit Triple Block - 30 mm (1 3/16") - RF35322

    $72.74
    0
  33. Ronstan Series 40 Orbit Cheek Block - 40 mm (1 9/16") - RF46151

    $75.82
    0
  34. Ronstan Series 40 Orbit Ratchet Block - 40 mm (1 9/16") - RF46151A

    $75.82
    0
  35. 20% off

    Ronstan Series 50 Block - 50 mm (2") - RF51110

    $43.39
    0
  36. 19% off

    Ronstan Series 50 Block - 50 mm (2") - RF51111

    $40.46
    0
  37. Lewmar Synchro Control Thru Deck Block - 30 mm (1 3/16") - 29901361BK

    $25.99
    0
  38. Lewmar HTX Toggle Block - 72 mm (2 7/8") - 29197221

    $120.99
    0
  39. 10% off

    Lewmar Synchro Double Block - 90 mm (3 1/2") - 29929002BK

    $214.19
    0
  40. 19% off

    Ronstan Single Snatch Block - 51 mm (2") - RF6711

    $185.61
    0
  41. 19% off

    Ronstan Series 55 Ball Bearing Orbit Double Block - 55 mm (2 5/32") - RF55210

    $83.84
    0
  42. 20% off

    Ronstan Series 55 Ball Bearing Orbit Triple Block - 55 mm (2 5/32") - RF55310

    $106.96
    0
  43. 19% off

    Ronstan Series 55 Orbit Block - 55 mm (2 5/32") - RF55171

    $51.41
    0
  44. Ronstan Series 55 Orbit Cheek Block - 55 mm (2 5/32") - RF56151

    $84.30
    0
  45. 20% off

    Ronstan Series 55 Ratchet Orbit Block - 55 mm (2 5/32") - RF56110

    $71.79
    0
  46. 20% off

    Ronstan Series 55 Ratchet Orbit Block - 55 mm (2 5/32") - RF56130

    $138.99
    0
  47. 19% off

    Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64130

    $199.21
    0
  48. 20% off

    Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64108AW

    $151.15
    0

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.