High Load Blocks

Seldén High Load Ball Bearing 25mm block has a very high working load in relation to the size of the block. Ideal for halyard applications and runners on keel boats and performance dinghies. High Load Plain Bearings Blocks, in sizes from 45-130mm are great for backstay bridles or as the first block in a backstay cascade. They can be used with wire or Dyneema/Spectra core lines.

Understanding Seldén High Load Blocks: Strength and Efficiency in Sailing

Seldén High load blocks are essential components in sailing and rigging, designed to withstand extreme forces while maintaining smooth operation. These blocks play a crucial role in handling high-tension lines, ensuring efficiency and reliability in various sailing applications.

What Are High Load Blocks?

Seldén High load blocks are specialized pulley systems engineered to manage significant loads without compromising performance. They are commonly used in halyards, runners, and backstay applications, where maintaining control under high tension is critical.

Key Features of Seldén High Load Blocks

Material Strength – High load blocks are constructed using durable materials such as stainless steel and anodized aluminum, ensuring longevity and resistance to corrosion.
Optimized Bearings – These blocks often feature ball bearings or plain bearings, designed to handle extreme static loads while maintaining dynamic efficiency.
Versatile Applications – They are ideal for use with wire or Dyneema/Spectra core lines, making them suitable for various rigging setups.
Enhanced Load Capacity – With reinforced side plates and V-shaped sheaves, high load blocks can support substantial forces while minimizing wear.

Insights from Seldén

Seldén Mast offers a range of high load blocks designed for different sailing needs. Their High Load Ball Bearing Blocks provide a safe working load of 400 kg, making them ideal for halyard applications and runners on keelboats. Meanwhile, their High Load Plain Bearing Blocks are optimized for wire and Dyneema core lines, ensuring maximum efficiency in backstay applications. The blocks feature stainless steel cheeks for high strength and torsional stiffness, along with a ball-cage system that separates stainless ball bearings to reduce friction and weight.

Need help choosing a block? Read our guide to sailing block types and our sailing block sizing guide.

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High Load 45-130mm - Plain...

These blocks are optimised for wires or Dyneema/Spectra core lines. Stainless steel, electro polished cheeks. Size 60-130mm: anodised aluminium sheave and polymer plain bearing bushing. Size 45mm: composite sheave and polymer plain bearing bushing. Outer side plates to increase breaking load but still optimising the weight. The sheave is V-shaped for wires.Light holes to reduce weight. Two polyamide washers on pin/bushing to reduce play between wire terminal and cheeks. Designed for wire applications subject to rig loads e.g. backstays. Choose the size of block that suits your requirements

£55.62

45mm
60mm
80mm
100mm
130mm

£17.38

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