The Ronstan Series 40 Orbit Single Block features a ball-bearing system with a built-in cleat and swivel for high-performance control. This block is constructed with lightweight, glass fiber reinforced nylon cheeks and includes a carbon-reinforced C-Cleat for secure line holding. Its 2-stage bearing system minimizes friction across the full working load range for efficient trimming.
Key Features:
- Class-leading dynamic and static load ratings
- Stainless steel cleat arms adjustable for preferred cleating angle
- Includes fairleads for multi-angle operation
- Low-profile and compact design
Specifications:
- Sheave diameter: 1-9/16 in.
- Maximum rope diameter: 3/8 in.
- Pin diameter: 5/32 in.
- Maximum working load: 880 lb.
- Breaking load: 1760 lb.
- Weight: 6.2 oz.
- Part number: RF48120
Applications:
- Mainsheet and spinnaker systems on dinghies, catamarans, and sportsboats up to 26 ft.
- Halyard, vang, and backstay use on boats up to 30 ft.
- Control line applications for larger yachts
Product facts
- CT SKU
- CT-112184
- Model / MPN
- RF48120
- UPC / GTIN
- 9316800624751
- Package dimensions
- 2" X 5" X 5"
- Package weight
- 0.25 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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