The RBB130 Single Roller Bearing Block is built for extreme loads and dynamic applications, featuring a large 130 mm sheave. Made from machined black anodized aluminium and equipped with Torlon® roller bearings, this block provides superior strength and smooth operation. The swiveling shaft can be fixed at 0° or 90° with a set screw. Polymer thrust bearings resist side loads, and a polymer washer insulates stainless from aluminium to prevent corrosion. 

Seldén Roller Bearing Blocks (RBB) is our performance range and ideal for spinnaker trim, backstays, halyards and German sheeting.

The blocks respond instantly to maintain delicate trimming and smooth manoeuvres for the trimmer to endure driving the boat forward for longer periods of time. 

Safe working Load: 5000 kg
Breaking Load: 10000 kg
Max line size: 18 mm