Ronstan Series 20 Upright Lead Block - 20 mm (3/4") - RF20171

The Ronstan 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

Specifications:

• Safe working load: 550 lb (400 kg)
• Breaking load: 1210 lb (550 kg)
• Weight: 0.6 oz (18 g)
• Sheave diameter: 3/4" (20 mm)
• Maximum line size: 1/4" (6 mm)
• Materials:
  • U.V. stabilized Acetal sheaves
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load housing
  • Impact and UV resistant, stainless steel cheeks