The first dimension quoted refers to the width of the sheave, the second to its diameter. For larger sheaves to be used with thin rope see wire sheaves. Click'Large view' to see groove shape.
These wire rope sheaves are often handy as through-mast halyard sheaves, using normal" rope. Click'Large view' to see groove shape.
Aluminium Bronze, suitable for varnished ash blocks with stainless steel bindings
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