40 mm Ball Bearing Block - Double Cam suitable for J-measurements 4700 -

suitable for J-measurements 4700 - 6000 mm and the sheet lead up the mast to a sheavebox

Polymer thrust bearings resist side loads

That means

a becket and an integrated 38 mm composite cam cleat

40 mm Ball Bearing Block - Double Cam suitable for J-measurements 4700 -The BBB40 Double Block features two 40 mm sheaves, designed for dynamic applications under medium loads. The stainless eye is fixed and allows for shackle or line attachments. Stainless steel ball bearings ensure smooth, low friction operation, while glass fiber reinforced cheeks provide strength and durability. Ideal for moderate and dynamic loads with minimal friction. Safe working Load: 500 kg Breaking Load: 1000 kg Max line size: 10 mm