Description
Overview
The Split Coupling (Zinc-Coated) is a reliable connector for joining a marine gearbox to a propeller shaft. It uses a strong clamp design that grips the shaft firmly while still allowing quick installation and removal. Because the coupling is zinc coated, it resists rust in both saltwater and freshwater. In addition, several size options are available, so boat owners can select the version that suits their shaft diameter.
Features
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Zinc coating improves resistance to corrosion in marine conditions
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Split clamp design makes installation and removal faster
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Machined surfaces keep the shaft and gearbox correctly aligned
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Four size variants cover common shaft combinations
Specifications and Materials
This coupling is built from solid steel and then finished with a zinc layer for protection. The coating reduces rust and extends service life, especially in wet or salty conditions. Unlike solid couplings, the two-piece split design clamps evenly around the shaft. As a result, it provides a secure grip without demanding extremely tight tolerances. In addition, the design makes removal easier during servicing, which saves time and labour.
Compatibility and Fitment
Argomarine offers this coupling in four versions:
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AM1001 – 1″ to 1″
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AM1002 – 1″ to 1 1/8″
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AM1003 – 1 1/8″ to 1 1/8″
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AM1004 – 1 1/4″ to 1 1/8″
Choosing the correct size ensures proper connection between gearbox and propeller shaft. In addition, correct installation by a qualified technician prevents misalignment and ensures safe operation.
Compliance and Safety
Marine engineers favour split couplings because they combine strength with easier handling. Zinc plating adds further protection, which reduces the chance of premature wear. Installers should always follow recognised marine fitting practices. For material properties related to zinc-coated steel, see: https://matweb.com
Marine Applications
Split couplings are used in inboard propulsion systems on a wide range of boats. They are especially useful during servicing, since the two-piece clamp design allows quick removal without dismantling the entire shaft line. Therefore, they reduce downtime and make maintenance more efficient. In addition, the zinc finish provides consistent performance in both coastal and inland waters.
Why Choose Argomarine
Argomarine supplies trusted marine parts backed by local expertise. By offering zinc-coated couplings in the most common sizes, the company gives boat owners a reliable solution that balances strength, corrosion resistance, and ease of use. Importantly, choosing Argomarine means choosing proven quality and dependable support.
Browse more gearbox parts here: https://www.argomarine.com.au/product-category/gear-box-parts/
