40 mm Ball Bearing Block - Fiddle Spinnaker Pole Seldén Roller Bearing Blocks (RBB)

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

while the 50 mm polymer sheaves

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

M-MAX: 220 mm

to be combined with ø6 or ø7 mm wire applications

40 mm Ball Bearing Block - Fiddle Spinnaker Pole Seldén Roller Bearing Blocks (RBB)The 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