The Ronstan Series 40 Orbit Ball Bearing Block offers a combination of strength and low-friction performance for sailboat rigging. This unit features a swivel shackle head and a becket for versatile configuration in various control line, mainsheet, and halyard systems.
Constructed with toughened, glass fiber reinforced nylon cheeks, this block is designed to be both lightweight and durable. It utilizes a 2-stage bearing system that combines ball bearings for reduced friction with a secondary full-contact bearing to maintain performance across the full working load range.
- Sheave Diameter: 1-9/16 in.
- Maximum Rope Diameter: 3/8 in.
- Pin Diameter: 5/32 in.
- Maximum Working Load: 1320 lb.
- Breaking Load: 2650 lb.
- Weight: 7.1 oz.
- Manufacturer Part Number: RF48410
Ideal for mainsheet and spinnaker sheet applications on dinghies, catamarans, and sportsboats up to 8m (26ft), or for halyard, vang, and backstay use on boats up to 9m (30ft).
Product facts
- CT SKU
- CT-112194
- Model / MPN
- RF48410
- UPC / GTIN
- 9316800624843
- Package dimensions
- 2" X 3" X 4"
- Package weight
- 0.45 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
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