Seldén BBB 20 Double Block Fixed Ball Bearing

The Seldén BBB 20 double block with fixed becket is a compact and lightweight ball bearing block designed for smaller sailing yachts, dinghies and multihulls. This double block is supremely suited for trim lines, cunningham systems, vang systems and other lightly loaded line systems where reliability and low weight are essential. The two sheaves provide a mechanical advantage that considerably eases the operation of control systems.

The cheeks of this Seldén BBB 20 double block are manufactured from glass fibre reinforced polyamide, a material offering an excellent combination of light weight and high strength. The stainless steel ball bearings are designed for the highest strength under high dynamic loads, ensuring the block rotates smoothly and reliably under all conditions. The fixed becket in the block provides a straightforward attachment point that can be connected with a D-shackle or directly with a line, offering maximum flexibility during installation.

With a safe working load of 300 kg and a breaking strength of 600 kg, this double block offers sufficient capacity for most trim and control systems on smaller boats. The block weighs only 77 grams, making it one of the lightest options for double block configurations. It accepts lines from Ø2 to Ø6 mm, making it compatible with the common line diameters for trim and control applications. The fixed position ensures predictable operation without unwanted rotation.

Features

• Stainless steel ball bearing for smooth operation under high dynamic loads
• Glass fibre reinforced polyamide – light and strong
• Fixed becket – attachment with D-shackle or line
• Compact and lightweight design (77 g)
• Suitable for trim lines and control systems
• Suitable for lines Ø2–6 mm

Technical specifications

• Model: Seldén BBB 20
• Series: Seldén BBB
• Bearing type: Ball bearing
• Safe Working Load (SWL): 300 kg
• Breaking strength: 600 kg
• Weight: 77 g
• Attachment point: Fixed
• D-shackles included: No
• Suitable for lines: Ø2, Ø3, Ø4, Ø5, Ø6 mm
• Article number: 402-101-03
• EAN: 7350044270055