40 mm Ball Bearing Block - Fiddle Spinnaker Pole Turnbuckle with Swage Terminal/Toggle terminals

Turnbuckle with Swage Terminal/Toggle terminals

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

The large 40 mm primary sheave and smaller secondary sheave provide increased mechanical advantage

Polymer thrust bearings resist side loads

40 mm Ball Bearing Block - Fiddle Spinnaker Pole Turnbuckle with Swage Terminal/Toggle terminalsThe BBB40 Fiddle Block features a large 40 mm primary sheave and a smaller secondary sheave for increased mechanical advantage in rigging systems. It features a swiveling shaft with swivel lock a plastic washer which is placed between block body and shackle for fixed 0 or 90 shackle position. Stainless steel ball bearings provide smooth, low friction operation under medium loads, while glass fiber reinforced cheeks ensure rigidity and durability. The