The Ronstan Series 40 Orbit Single Stand-Up Block is engineered for high performance and reliability on sailing vessels. This ball-bearing block utilizes toughened, glass fiber reinforced nylon cheeks to provide a lightweight yet high-strength alternative to traditional stainless steel utility blocks.
Key Features:
- Class-leading dynamic and static load ratings
- 2-stage bearing system minimizes friction across the full working load range
- Compact and low-profile design
- Stainless steel cleat arm is adjustable for preferred cleating angles
- Suitable for mainsheet systems and spinnaker sheets on dinghies, catamarans, and sportsboats up to 8m (26ft)
- Compatible with halyard, vang, and backstay applications on boats to 9m (30ft)
Specifications:
- Sheave Diameter: 1-9/16 in.
- Maximum Rope Diameter: 3/8 in.
- Maximum Working Load: 880 lb.
- Breaking Load: 1760 lb.
- Weight: 2.5 oz.
- Manufacturer Part Number: RF48140
Product facts
- CT SKU
- CT-112185
- Model / MPN
- RF48140
- UPC / GTIN
- 9316800625536
- Package dimensions
- 2" X 2" X 4"
- Package weight
- 0.16 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.
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Shipping & returns
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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.
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Need help choosing?
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