Size 3 45mm Plain Bearing Pulley Block Double Upright Block. The size 3 Barton plain bearing blocks have 45mm (1 3/4" sheave size 3 block range incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fibre glass filled nylon and Acetal sheaves to maximise their strength whilst keeping weight to a minimum. Suitable for use as mainsheet, vangs, lead blocks, or wherever a powerful and compact purchase system is required on dinghies, dayboats, and lightweight cruisers. Suitable for up to 10mm (3/8") rope. Rainforest spec: Sheave size 45mm x 13mm, Max rope Ø mm 10, Safe Working Load kg. 400, Break load kg. 800, length mm 75. Ideal for sailing and deck hardware applications.
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