Ronstan Series 40 Double Sheave Ball Bearing Orbit Block with Becket, 40mm, 500kg, Lightweight Dyneema Link

The Ronstan Series 40 Double Sheave Ball Bearing Orbit Block with Becket is designed for sailors who demand lightweight, high-performance hardware. Engineered for strength and efficiency, this compact block is ideal for sheet, halyard, and control line systems on small to mid-size sailboats and racing dinghies.

Its advanced ball bearing system and Dyneema link head offer smooth operation and easy installation, making it a top choice for performance-focused rigging.

• Ultra lightweight at just 72 grams for minimal rig weight
• Low friction 2-stage orbital ball bearing system ensures smooth, efficient movement
• 500kg maximum working load and 1000kg break load for reliable strength
• 40mm sheave diameter accommodates up to 9mm rope
• Compact, low profile design fits tight rigging spaces
• Durable Dyneema link head for quick and secure attachment
• Suitable for sheet, halyard, and control line applications on racing dinghies and small to mid-size yachts

Upgrade your rig with the Ronstan Series 40 Double Sheave Orbit Block for dependable performance and reduced weight on the water.