Seldén BBB20 Double Ball Bearing Block – 20mm Sailing Block for Ropes 2-6mm
A compact fixed double block that uses stainless steel ball bearings to keep control lines and lighter-load rigging running smoothly.
- 20mm sheave double ball bearing block from Seldén’s BBB range
- Fixed attachment point with integral strap
- Two sheaves for a 4:1 purchase on lighter-load systems
- Stainless steel ball bearings for smooth running under dynamic load
- Safe working load 300kg, breaking load 600kg
- Suitable for ropes and control lines Ø2-6mm
- 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 double block pairs two 20mm sheaves running on stainless steel ball bearings, giving smooth, low-friction movement where a single block would not offer enough purchase. 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. Rated to a 300kg safe working load with a 600kg breaking load, it suits smaller boats and dinghies around Galway Bay and other Irish sailing waters where a compact double block earns its place on control lines and lighter-duty purchase systems.
