Ronstan's 50mm Lead Blocks are a low-profile solution for leading halyards or other rig sail controls back to cleats or jammers. Their precision-molded, UV-stabilized, Acetal sheaves run on Acetal ball bearings provide high performance and low friction.
All of this is packaged in a grade 316 stainless steel load housing. The two-stage ball bearing system provides consistent performance over the full load range.
These lead blocks are typically used at the mast base.
|Breaking Load (lbs)||3310|
|Breaking Load (kg)||1500|
|Safe Working Load (lbs)||1100|
|Safe Working Load (kg)||500|
|Sheave Diameter (in)||2|
|Sheave Diameter (mm)||50|