Harken Megayacht Aluminium Block - 150mm Stand-Up Block

Sheave: 150 mm (5 15/16 in)
Weight: 4.67 kg (10.29 lb)
Length: 297 mm (11 11/16 in)
Maximum Line: 25 mm (1 in)
Maximum Working Load: 10000 kg (22050 lb)
Breaking Load: 20000 kg (44100 lb)

Sideplates are constructed of hardcoat-anodized 6061-T6 aluminum for strength and corrosion resistance. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads.