Ronstan RF20171 Series 20 Ball Bearing Block – Upright Lead

The Ronstan RF20171 Series 20 Ball Bearing Block – Upright
Lead is a low profile solution for leading halyards or
other rig sail controls back to cleats or jammers. It has
precision-moulded Acetal sheaves running on stainless steel ball
bearings to provide high performance and low friction.

Ronstan RF20171 Series 20 Ball Bearing Block – Upright Lead
Features:

• Durable construction
• Upright lead
• Low friction
• High performance
• Grade 316 stainless steel ball bearings
• UV stabilised Acetal sheave
• Grade 316 stainless steel load housing
• Typically used for halyards at the mast base

Ronstan RF20171 Series 20 Ball Bearing Block – Upright Lead
Specifications:

• Sheave diameter: 20 mm
• Max. Rope diameter: 6 mm
• M.W.L.: 250 kg
• B. L.: 550 kg
• Weight: 18 g