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

Maximize your sailing performance with the Ronstan Series 40 Orbit Single BB Stand-Up Block. Engineered for the most demanding marine conditions, this block delivers a superior balance of strength, performance, and reliability. Its class-leading dynamic and static load ratings, combined with a lightweight, durable design, ensure efficient and effortless trimming. Upgrade your rigging today for unparalleled control and longevity.

In the Box:

• Ronstan Series 40 Orbit Single BB Stand-Up Block
• Saddle
• Spring

Key Benefits & Specifications:

• Precision Engineering: Features a 1-9/16 inch (40 mm) sheave diameter for smooth rope handling.
• High Load Capacity: Rated with a Maximum Working Load (MWL) of 880 lbs (400 kg) and a Breaking Load (BL) of 1760 lbs (800 kg), providing robust reliability for critical applications.
• Lightweight Durability: Constructed with toughened, glass fiber reinforced nylon cheeks, offering exceptional strength without the weight of traditional stainless steel straps.
• Ultra-Low Friction: Incorporates a 2-stage ball bearing system with high compression strength acetal sheave and ball bearings to minimize friction and ensure efficient, effortless trimming across the full working load range.
• Versatile Attachment: Features a stainless steel shackle head for unlimited block rotation and compatibility with sharp fixing points, offering flexible installation options.
• Compact Design: Its low profile and compact form factor ensure optimal performance and ease of use in confined spaces.
• Robust Construction: Head fittings, hubs, and fixtures are crafted from Grade 316 stainless steel for excellent corrosion resistance and long-term durability in harsh marine environments.
• Lightweight Performance: Weighs only 2.5 oz (70 g), contributing to a lighter overall rig.
• Max Rope Diameter: Accommodates ropes up to 3/8 inch (10 mm).

Applications:

• Ideal for mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans, and sports boats up to 8m (26ft).
• Suitable for halyard, vang, and backstay applications on boats up to 9m (30ft).
• Can also be used for various control line applications on larger yachts.