In order for you to choose the best trailer axle kit, you must first consider the use of the trailer, the amount of weight the trailer will haul and the type of vehicle that will commonly tow the trailer. There are several types and styles of trailer axle kit available to install on a wide variety of trailers. The type of trailer suspension used will often dictate the type of trailer axle kit that you will be required to use when installing a new axle onto a trailer. You may also wish to choose a particular type of trailer tire, and pick an axle that will allow your specific tire and wheel combination to be used on the trailer.
If you wish to place a trailer axle kit on a light-duty trailer, you may be able to go with a single-axle version that uses a small, light-duty tire and wheel. Trailers that are intended only for occasional use around the yard can usually be fitted with a trailer axle kit that uses the type of wheel that fits onto an axle shaft and is secured by a cotter pin. This type of trailer is fine for use around the yard or behind a riding lawn tractor. This type of axle is not suited for hauling heavy loads or highway use, and should not be considered for anything other than extremely light duty.
For medium-duty trailers, there is one major consideration: will the trailer be used with a suspension or without? If choosing an axle to be used with a suspension, the leaf spring trailer axle kit is commonly the best choice. This axle is easily installed and will withstand medium to heavy loads without failing. A trailer axle kit intended for use with no suspension must be heavier than the suspended design so that it will not fail while absorbing the stress of encountering bumps while loaded.
Heavy-duty trailer axle kit components are very similar to the medium-duty leaf spring versions; however, this axle commonly employs high-speed wheel bearings and can incorporate a braking system. Depending on the amount of usage you expect the trailer to undergo, you may wish to choose a trailer axle kit that incorporates a braking system on the trailer wheels. This type of system is commonly a top-of-the-line kit and will generally provide you with the best all-around use.