Ronstan Series 30 Ball Bearing Orbit Block, Single with Becket & Lashing Head

Experience unparalleled performance and reliability with the Ronstan Series 30 Ball Bearing Orbit Block. Engineered for high-performance sailing, this block boasts the highest strength-to-weight ratio in its class, achieved through advanced all-composite reinforced polymer materials. Its precision 2-stage ball bearing system ensures minimum friction across the full working load range, providing consistent and smooth operation for demanding marine applications. Upgrade your rigging with Ronstan's proven technology for superior control and durability.

Key Features & Benefits:

• Ultra-Lightweight Design: Weighing only 22g (0.8oz), this block utilizes fiber-reinforced composites to eliminate heavy metal components, offering exceptional performance without added bulk.
• High Working & Breaking Loads: Designed for demanding conditions, it provides a minimum working load (MWL) of 300kg (660lbs) and a breaking load (BL) of 600kg (1,320lbs).
• Smooth, Low-Friction Operation: Features a 30mm (1-3/16") sheave diameter and a proven 2-stage ball bearing system with high compression grade Acetal ball bearings and a secondary full-contact bearing, ensuring consistent performance.
• Durable Construction: Crafted with a toughened, glass fiber reinforced Nylon frame, high compression strength carbon black Acetal sheave and ball bearings, and a UV-stabilized, multi-strand impregnated SK75 Dyneema® link for long-lasting resilience in harsh marine environments.
• Versatile Attachment Options: The single lashing head allows for easy, secure attachment and can be oriented at 0° or 90°. It also accepts an RF1850S shackle for conventional loop-top configurations.
• Ultra-Low Profile Becket: The thru-sheave becket design minimizes height, contributing to a compact and efficient rigging setup.

Applications:

• Ideal for mainsheet systems and spinnaker sheets on dinghies up to 5 meters (16 feet).
• Suitable for halyard, vang, and backstay applications on boats up to 5 meters (16 feet).
• Excellent for control line applications on larger yachts.