Wichard 74117 Ball bearing blocks / sheave 55 / single / with fixed head and clevis BLA It has a ventilation position

It has a ventilation position and can be locked completely watertight

or free to swivel as required

Self lubricating Acetal polymer sheave ensures low friction and extreme durability

Wichard 70114 single ball bearing block with 18 mm sheave

Required as day signals for some vessels

Wichard 74117 Ball bearing blocks / sheave 55 / single / with fixed head and clevis BLA It has a ventilation positionThe Wichard 74117 is a single ball bearing block with a 55 mm sheave and fixed head with clevis a compact, high load block for precise rope control on deck. Weight: 160 g Sheave diameter: 55 mm Shackle diameter: 6 mm Length: 107 mm Width: 63 mm Thickness: 26 mm Working load: 720 kg Breaking load: 1,500 kg Rope size: 10 mm (5 mm forged shackle)