The Ronstan Series 40 Orbit Ball Bearing Exit Block offers a blend of strength and performance for various sailing applications. Designed with lightweight, glass fiber reinforced nylon cheeks, this block delivers high dynamic and static load ratings for efficient, reliable operation.
The unit features a 2-stage bearing system that utilizes ball bearings to reduce friction during use, maintaining smooth performance across the full working load range. The integrated carbon-reinforced C-Cleat provides secure rope holding with adjustable stainless steel cleat arms to accommodate preferred cleating angles.
- Sheave diameter: 1-9/16 in.
- Maximum rope diameter: 3/8 in.
- Maximum working load: 880/1760 lb.
- Breaking load: 4410 lb.
- Weight: 9.5 oz.
- Manufacturer part number: RF45711
These blocks are suitable for mainsheet and spinnaker sheet systems on dinghies, off-the-beach catamarans, and sportsboats up to 26 ft., as well as halyard, vang, and backstay applications on boats up to 30 ft.
Product facts
- CT SKU
- CT-112180
- Model / MPN
- RF45711
- UPC / GTIN
- 9316800645114
- Package dimensions
- 1" X 2" X 4"
- 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.
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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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