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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 402-201-05R is the compact 25 mm single block with rivet-style fixed attachment. The stainless-steel side plates give high strength and rigidity, while stainless-steel ball bearings and a lightweight ball cage provide smooth operation with minimal friction. Seldén specifies a safe working load of 400 kg, breaking load of 800 kg and maximum 5 mm rope or wire. It is intended for high-load applications on smaller boats, including halyards, tackles and control systems where a small, strong fixed block is required.
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