The Ronstan Series 40 Orbit BB Double Block provides high-performance rigging with a focus on strength and reliability. This double block features a lashing head option for versatile soft-attachment configurations and an integrated becket for secure line termination. Designed for lightweight efficiency, it utilizes toughened glass fiber-reinforced nylon cheeks to reduce weight while maintaining high load capacity.
Key Features and Specifications:
- Sheave Diameter: 1-9/16 in.
- Maximum Rope Diameter: 3/8 in.
- Maximum Working Load: 1320 lb.
- Breaking Load: 2650 lb.
- Weight: 3.0 oz.
- Features a 2-stage bearing system to minimize friction across the full working load range.
- Ideal for mainsheet systems and spinnaker sheets on boats up to 26 ft., or halyard and control line applications on boats up to 30 ft.
- Part Number: RF48209
Product facts
- CT SKU
- CT-112188
- Model / MPN
- RF48209
- UPC / GTIN
- 9316800644780
- Package dimensions
- 2" X 2" X 2"
- Package weight
- 0.2 lb
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
Shipping & returns
Shipping & returns
Shipping methods, delivery estimates, and final costs appear at checkout before payment. Some bulky, supplier-shipped, or special-handling items may ship separately. See Shipping & Returns for return windows and eligibility.
Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
Need help choosing?
Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
