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These high load ball bearing blocks have steel sides for strength.
They are ideal for halyards, tackles, runners in a dynamic, low load situation.
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Seldén BBB25 High Load Block 402-201-08R is the compact 25 mm double block with pin and shackle-style attachment. Two high-load sheaves allow the fitting to form part of multi-part tackles while retaining a very small overall package. Stainless-steel side plates provide rigidity and the ball-bearing construction keeps friction low under dynamic loads. Seldén specifies a safe working load of 400 kg, breaking load of 800 kg and maximum 5 mm line. It is suitable for halyards, tackles and other compact high-load control systems.
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