Seldén Ball Bearing Blocks: Precision and Performance in Sailing

Seldén Mast is a trusted name in sailing hardware, and its Ball Bearing Blocks are designed for smooth, low-friction performance in dynamic load applications. These blocks are ideal for control lines, mainsheets, and spinnaker sheets, ensuring efficient and reliable operation under varying conditions.

Key Features of Seldén Ball Bearing Blocks

Seldén's Ball Bearing Blocks are engineered for moderate and dynamic loads, offering superior efficiency and durability. Here are some of their standout features:

1. Glass Fiber-Reinforced Cheeks – The blocks feature composite cheeks made from 50/50 glass fiber/polyamide, ensuring high strength and durability.
2. Stainless Steel Races – These races provide exceptional load distribution, reducing wear and increasing longevity.
3. Acetal Ball Bearing Cages – The ball bearings are housed in acetal cages, minimizing friction and ensuring smooth sheave rotation.
4. Stainless Steel Ball Bearings – The BBB 20, 30, and 40 models feature stainless steel ball bearings, while the BBB 60 model offers a Heavy Duty version with stainless ball bearings or Delrin ball bearings.
5. Big Bearing Diameter – A larger bearing diameter reduces friction, enhancing efficiency in high-performance sailing.

Available Sizes and Load Capacities

Seldén offers Ball Bearing Blocks in various sizes, each designed for specific load capacities:

These blocks are optimized for dynamic load applications, ensuring smooth operation and minimal resistance.

Applications of Seldén Ball Bearing Blocks

Seldén's Ball Bearing Blocks are widely used in performance sailing applications, including:

• Control Lines – Providing precise adjustments for sail tuning.
• Mainsail Sheets – Ensuring smooth and efficient sail handling.