Seldén BBB20 Single Ball Bearing Block with Becket – 20mm Sailing Block for Ropes 2-6mm
A compact fixed single block that uses stainless steel ball bearings to keep control lines and lighter-load rigging running smoothly.
- 20mm sheave diameter ball bearing block from Seldén’s BBB range
- Fixed attachment point with integral strap
- Stainless steel ball bearings for smooth running under dynamic load
- Safe working load 150kg, breaking load 300kg
- Suitable for ropes and control lines Ø2-6mm
- Becket fitted for a second attachment point
- Glass fibre reinforced polyamide body, light and strong
- Strap attaches with a shackle or a rope lashing
- No shackle supplied, so pick one to suit the fitting
- Suited to dinghies, small keelboats and lighter control-line duties
The Seldén BBB20 is a fixed single block built around a 20mm sheave running on stainless steel ball bearings, giving smooth, low-friction movement on control lines that see regular use. Its glass fibre reinforced polyamide body keeps the block light without giving up strength, and the integral strap takes a shackle or a rope lashing depending on how it is being rigged. The becket adds a second attachment point, useful for building a simple purchase or anchoring a line end. Rated to a 150kg safe working load with a 300kg breaking load, it suits smaller boats and dinghies around Galway Bay and other Irish sailing waters where a compact ball bearing block earns its place on lighter-duty lines.


