The RBB100 Single Stand-Up Block is designed for heavy-duty, high-load applications. Featuring a 100 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, halyards 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
Breaking Load: 7000 kg
Safe working Load: 3500 kg
System: RBB100
Max line size: 16 mm