Ronstan Series 40 Ball Bearing Block – 40mm Sailing Pulley

The RONSTAN Series 40mm ball bearing block is designed for smooth and reliable performance on cruising and performance sailboats. Ideal for control lines and primary leads, this sailing pulley offers efficient handling and durability.

Featuring a lightweight design and a 2-stage ball bearing system, this block delivers low friction operation and high load capacity. Maintenance is simple with cheek cut-outs, and the Captive Lock universal head ensures secure attachment.

• Low friction acetal or Torlon® bearing system
• Lightweight construction
• Cheek cut-outs for easy bearing maintenance
• Captive Lock™ universal head
• 2-stage ball bearing system
• High static and dynamic load capacity
• Sheave diameter: 40 mm
• Maximum rope diameter: 10 mm
• Maximum working load: 350 kg
• Breaking load: 800 kg
• Weight: 71 g