Seldén PBB70 Plain Bearing Block — 70mm Single Swivel (Max line Ø14mm, SWL 1500kg)
Durable, marine-rated single block for deck and running rigging — corrosion resistant components built to handle Irish Sea conditions
- Sheave diameter: 70 mm (glass fibre reinforced composite)
- Bearing: plain bearing with polymer bushing for low maintenance
- Safe Working Load (SWL): 1,500 kg
- Breaking Load: 3,000 kg
- Maximum line diameter: 14 mm
- Shackle: optimised 6/8 mm design (Ø6 mm shackle body / Ø8 mm pin for high bending resistance)
- Pin diameter: 8 mm
- Shackle diameter: 6 mm
- Stainless steel side strap and AISI 316-grade stainless components for improved corrosion resistance
- Stiff glass fibre reinforced composite cheeks to reduce line wedging and wear
- Sliding swivel locking mechanism — tool-free lock/unlock for quick rigging
- Weight: ~316 g (manufacturer specification)
- Typical purchase/pack info: manufacturer listing shows minimum purchase quantity (check ordering details)
The Seldén PBB70 single swivel plain-bearing block is a compact, high-strength deck block designed for running rigging and control lines on cruising and performance yachts. Its 70mm glass fibre-reinforced sheave and polymer bushing give smooth operation with minimal upkeep, while stainless steel straps and an oversized pin provide the strength and corrosion resistance needed for sailing in Ireland’s coastal and offshore conditions. Use it for halyards, sheets or control lines up to 14mm — the proven plain-bearing design delivers reliable performance and easy, tool-free locking on deck. Ideal for sailors who want durable deck equipment that stands up to the Irish Sea and Atlantic weather.


