The RBB80 Single Stand-Up Becket Block is designed for heavy-duty, high-load applications. Featuring a 80 mm sheave, the block is made from machined black anodized aluminium with Torlon® roller bearings for maximum performance under load.

The stainless stand-up base and spring ensures optimal positioning and polymer thrust bearings provide resistance to side loads. A polymer washer insulates stainless steel from aluminium to prevent corrosion. 

Ideal for spinnaker sheets, barber haulers and backstay control in applications where stability and quick adjustments are key.

Seldén Roller Bearing Blocks (RBB) is our performance range and unrivalled in terms of low friction for the trimmer to endure driving the boat forward for longer periods of time. 

BlockType: standup,single becket
SubType: standup, single becket
Breaking Load: 5000 kg
Safe working Load: 2500 kg
System: RBB80
Max line size: 14 mm