Description

TheRonstan 20 mm Series 20 Upright Lead Block (RF20171) has self-lubricating Acetal polymer sheaves running on polished stainless steel races that perform equally well with dynamic loads and high static loads.

Features:

• Low friction
• High static and dynamic load capacity
• Lightweight
• Stainless steel ball bearings
• UV stabilished Acetal sheave
• Grade 316 stainless steel load housing
• Impact and UV resistant, stainless steel cheeks
• Typically used for halyards at the mast base