Roller Bearing Blocks

Seldén Roller Bearing Blocks (RRB) provide low resistance at high, dynamic loads. The ability to easily release a highly loaded backstay tackle, a mainsheet, a spinnaker halyard or a kicker tackle makes for fast, safe and uncomplicated maneuvers.

You will find yourself focusing on what matters - Boat speed.

TECHNICAL DETAILS

1. Torlon rollers
2. Insulating washer
3. Acetal ball bearings stabilize the sheave when subjected to side loads
4. Machined, black anodised aluminium sheave

SHACKLE DETAILS

1. RBB60: 6 mm body, RBB80: 8 mm body, RBB100: 10 mm, RBB130: 12 mm
2. Set screw. Switching from swiveling to fixed shackle (0° / 90°).
3. Machined, black anodised aluminium cheeks.
4. Swivel pin is hollow to reduce weight
5. RBB60: 8 mm pin, RBB80/100: 10 mm pin, RBB130: 12 mm

Seldén Roller Bearing Blocks: High-Performance Sailing Hardware for Dynamic Loads

Seldén is a trusted name in the sailing industry, known for its precision-engineered roller bearing blocks that provide low resistance under high dynamic loads. These blocks are designed to enhance sail handling, ensuring smooth and efficient trimming for competitive and leisure sailing alike.

What Are Seldén Roller Bearing Blocks?

Seldén roller bearing blocks (RBB) are advanced sailing components that use Torlon® rollers and acetal ball bearings to minimize friction and maximize efficiency. These blocks are ideal for spinnaker sheets, backstays, mainsheets, and kicker tackles, allowing sailors to focus on speed and maneuverability.

Key Features of Seldén Roller Bearing Blocks

• Torlon® Rollers: Provide exceptional load-bearing capacity and smooth operation.
• Acetal Ball Bearings: Stabilize the sheave under side loads, ensuring consistent performance.
• Machined, Black Anodized Aluminum Sheave: Enhances durability and reduces weight.
• Swiveling or Fixed Shackle Options: Allows for flexible rigging configurations.
• High Load Capacity: Available in multiple sizes to accommodate different sailing needs.

Seldén Roller Bearing Block Range

Seldén offers a variety of roller bearing blocks, each designed for specific applications:

• RBB60: Safe working load of 1500 kg, suitable for smaller yachts.
• RBB80: Safe working load of 2500 kg, ideal for mid-sized boats.
• RBB100: Safe working load of 3500 kg, used in high-performance sailing.
• RBB130: Safe working load of 5000 kg, designed for large yachts and extreme conditions.

Benefits of Using Seldén Roller Bearing Blocks

• Effortless Sail Handling: Reduces friction, making adjustments smoother.
• High Durability: Corrosion-resistant materials ensure longevity.
• Optimized Performance: Designed for fast, safe, and uncomplicated maneuvers.
• Versatile Applications: Suitable for mainsheets, spinnaker halyards, backstays, and more.

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