The Ronstan Series 40 Orbit Single Block features a becket and a swivel head, offering a blend of strength, performance, and reliability for various rigging applications. Designed with glass fiber reinforced nylon cheeks for a lightweight yet durable construction, this ball-bearing block utilizes a 2-stage bearing system to ensure low friction across the full working load range.
Key Specifications:
- Sheave diameter: 1-9/16 in.
- Maximum rope diameter: 3/8 in.
- Pin diameter: 5/32 in.
- Maximum Working Load (M.W.L.): 880 lb.
- Breaking Load (B.L.): 1760 lb.
- Weight: 2.1 oz.
- Part Number: RF48100
Common Applications:
- Mainsheet and spinnaker sheets on dinghies, catamarans, and sportsboats up to 26 ft.
- Halyard, vang, and backstay applications on boats up to 30 ft.
- Control line applications on larger yachts.
Product facts
- CT SKU
- CT-112183
- Model / MPN
- RF48100
- UPC / GTIN
- 9316800624744
- Package dimensions
- 2" X 2" X 2"
- Package weight
- 0.15 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
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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?
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.
