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When choosing an aluminum pulley, consider the manufacturing process, type of aluminum, protective coating, weight, cost, owner testimony, and warranty. Aluminum pulleys are lightweight and durable, with forged ones being superior to cast ones. Anodizing can protect against corrosion. Asking other users for their opinions can be helpful, and comparing warranties can be useful when multiple options are available.
There are several factors to consider when trying to choose the best aluminum pulley for any application. The type of manufacturing process used to produce the aluminum pulley is one of the most important facts to consider. The type or grade of aluminum used, the protective coating used on the pulley, and the weight of the pulley are all areas that should also be considered in a potential pulley purchase. Cost, owner testimony, and available warranty are some of the most important factors to consider whenever you’re ready to purchase an aluminum pulley.
Reducing the rotating mass is often the reason for purchasing an aluminum pulley. The lightweight metal allows the pulley to accelerate faster and stop sooner than a comparably sized steel or iron pulley, while the durability of the aluminum will typically outlast a nylon or plastic pulley. You may want to choose only a forged aluminum pulley over a cast aluminum version to take advantage of the forged unit’s superior manufacturing process. A forged pulley typically lasts and outlasts a cast pulley due to tighter machining tolerances, better balance, and a truer diameter than a cast design.
Although aluminum does not rust, metal is prone to some types of corrosion. You may find that the best aluminum pulley is anodized to protect it from corrosion buildup. This is especially important if the pulley will be used in, near or around water or in a wet environment. Anodizing coats the aluminum surface with a colored protective layer that blocks corrosion. If you would like the added protection of an anodized finish, however, don’t wish to have a colored pulley, you can choose a clear coat option to protect the aluminum.
One of the oldest and best methods of determining which product to use is to simply ask other pulley users for their personal opinion about the product. Comparing other users’ comments will often save you time and money in choosing an inferior product over a better version. The trial and error method of choosing a product, such as a pulley, can be an expensive and time consuming experience. In some cases, you will find two or more acceptable choices. In this scenario, you may want to look into the warranty offered on each aluminum pulley and choose the one with the best available coverage that fits your needs.
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