Name: Seldén RBB 80 Double Block with D-Shackle Swivel Roller Bearing
Brand: Seldén
SKU: SELDEN-RBB-80-DB
Price: 710.73 EUR
Availability: InStock

The Seldén RBB 80 double block is a powerful roller bearing block designed for the heaviest working loads on board. This double block is the ideal choice for sheets and other high-load line systems on larger sailing yachts, where reliability and performance under extreme conditions are essential. The two sheaves distribute the load efficiently, providing a significant mechanical advantage when handling heavy sails.

The construction of this Seldén RBB 80 double block combines black anodised aluminium cheeks and sheaves with an insulated stainless steel frame. This insulation between the aluminium and stainless steel components prevents galvanic corrosion, significantly extending the block's lifespan in the marine environment. The roller bearing ensures extremely low friction, even under the highest loads, making sail trimming and easing smooth and effortless. The locking screw allows easy switching between swivel and fixed positions, depending on the desired application.

With a safe working load of 2500 kg and a breaking strength of 5000 kg, this double block is suitable for the most demanding applications on sailing yachts. The block comes with straight D-shackles with a pin diameter of 10 mm, allowing direct attachment to eye bolts, mast fittings or other attachment points. The swivel attachment point ensures the block is always optimally aligned with the line direction, reducing line wear and improving operation.