Ronstan Series 40 Orbit BB Cheek Block, 1-9/16" Sheave, 880 lb MWL

Maximize your sailing performance with the Ronstan Series 40 Orbit BB Cheek Block. Engineered for exceptional strength and ultra-low friction, this block is a class leader, offering superior dynamic and static load ratings for demanding marine environments. Its innovative lightweight design and efficient 2-stage ball bearing system ensure effortless trimming and reliable operation. Upgrade your rigging for smoother, more responsive control on the water.

Key Features & Benefits:

• Class-Leading Load Ratings: Delivers superior dynamic and static load capacity for robust performance under extreme conditions.
• Ultra-Low Friction System: Features a proven 2-stage ball bearing system, incorporating high compression strength acetal ball bearings and a secondary full-contact bearing, ensuring smooth and effortless trimming across the full working load range.
• Lightweight & Durable Construction: Toughened glass fiber reinforced nylon cheeks provide exceptional strength while significantly reducing weight compared to traditional blocks.
• Optimized Sheave Design: The 1-9/16 inch (40mm) carbon fiber reinforced, PTFE impregnated nylon sheave handles ropes up to 3/8 inch (10mm) diameter with precision and minimal wear.
• High Working & Breaking Loads: Boasts an 880 lb. Maximum Working Load (MWL) and a 1760 lb. Breaking Load (BL), providing ample capacity and safety for critical rigging applications.
• Compact & Low Profile: Designed for minimal interference and clean deck lines.

Applications & Installation:

• Ideal for mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans, and sportsboats up to 8m (26ft).
• Perfect for halyard, vang, and backstay applications on boats up to 9m (30ft), as well as control line applications on larger yachts.
• Requires 2 x 6mm (1/4") fasteners for secure mounting.