[wolfz0rz]

Because the wheel hubs influence the overall performance of your trailer, routine maintenance is imperative. Depending on the size of your trailer wheels and the frequency of use, you should remove and, if necessary, replace parts in the trailer hub assembly at least once per year. Some towing experts recommend doing so every 10,000 miles (16,093 kilometers). For trailers with smaller wheels that must rotate more often, it may be wise to check the hubs as much as every 2,000 miles (3,218 kilometers) [source: Siuru].

[BrandonPetersville99]

Trailer wheel hubs play an integral role in keeping trailers rolling along. The trailer wheel hub assembly connects the trailer tires to the trailer axle and facilitates their spin. If those wheel hubs corrode or aren't installed properly, it will throw the trailer tires out of alignment and could lead to serious damage of your vehicle, trailer and whatever you're toting around. If, for instance, you're towing your dinghy to the lake for a weekend getaway, that fist-sized collection of hardware in a wheel hub can make the difference between relaxing on the water and spending hours making repairs. [links]

[dconradcopelande]

A trailer can't go too far without its wheels. In theory, you could hitch a wheel-free platform to the back of a truck and drag it along behind you, but you probably wouldn't risk anything valuable like a boat on top of it. Fortunately, trailers come equipped with a set of wheels, so they roll along with our vehicles like oversized cargo holds.

[GoldRush]

Fiddling with your trailer wheel hubs may sound like a tall order, but a little learning can go a long way to extend the life of your towing trailer. First up, we'll take apart the trailer wheel hub assembly to understand exactly what parts we're working with. here

[SteveL]

[melvster]

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[jgarzik]

Wipe the grease out of the hub with a clean rag. You will see a washer under the castle nut that has a tang on it that is engaging the nut. Pry the tang away from the nut and remove the nut and washer from the axle. here

[artdegree12]

Locate the cotter pin on the end of the spindle located under the dust cover and remove it. Just bend the ends straight and pull the cotter pin out of the axle with a pair of pliers. more

[Aleks]

Reinstall the tire and wheel onto the trailer, tightening the lug nuts to the manufacturer's specifications. Remove the jack stands and lower the trailer to the ground. Move to the other side of the trailer and repeat the process to replace the opposite hub.

[mwally]

Pull the hub straight off the spindle and axle. Place the new hub onto the axle and spindle by simply sliding it into place. You will need to have already placed bearings and seals in the new axle prior to assembly. here

[kupan787]

Replacing the hubs on a boat trailer is easy, and with the amount of time that boat trailers spend in the water, sometimes it is necessary to combat rust or corrosion. Often repacking the bearings will be all the maintenance needed; but if the hub is damaged or extremely rusted, you can remove the entire hub and replace it with a new one. You need to make sure the new hub has the correct dimensions to fit your trailer axle so if you are not sure what to use, check with the local trailer dealer or repair shop.

[Klintel]

Packing your bearings is a ritual some know very well. It can be very messy, but its simple. We are going to first talk about packing by hand. With your bearing in one hand, gather a bunch of grease in your other. Now simply press the grease into the bearings and spin it until grease fills and overfills all cavities of the bearing. [links]

[FairUser]

Using care, take out your wheel bearing. Take note of any metal shavings and debris that may come with it. Excess debris and metal shavings should be a reason alone to change out the bearing. here

[mustvisit]

If one bearing has a problem, it is best to replace both as it is an indicator that the time that has passed is the full life of that part according to the punishment they have gone through. here

[loadingpicker87]

The job of the wheel bearing is to let the hub spin freely with the least amount of friction and heat built up as possible. this is done by through the rolling pins that roll between the inner and outer race. However, this job does not go as easily said than done without one key component: grease.

[sherrylewis3usa]

In this guide, you will learn when and how to replace your boat trailer wheel bearings, as well as some safety tips to follow that will keep your trailer rolling down each and every boat ramp like a champ. Keep reading to be a boat trailer wheel bearing pro!

[mike_la_jolla]

Once the diameters are obtained, the table shown can be used to determine the bearing sizes required by your axle spindle. The next method is the use of a flexible tape. This method involves wrapping the tape around the spindle at the bearing locations. The resulting number is the circumference of the spindle. [links]

[Dave Kimble]

If it looks like this, you have a tapered spindle. Tapered spindles require hubs that contain two different-sized bearings. You may also have a spindle that looks like this. This is a straight spindle. Straight spindles have the same diameter at the bearing locations. here

[jorgeclam]

Today, we will review three methods of determining the size of axle spindles and in turn, the size of hubs that are used on your trailer. The first method is the use of a digital caliper. Place the caliper at the bearing locations on the spindle. The resulting number is the diameter of the spindle and in turn, the inner diameter of the bearings used in the hub. here

[Insti]

Before buying replacement hubs for your trailer, take some time to ensure you are getting the correct size. Most hubs in use today on marine and recreation trailers fall into one of four capacity sizes: 1250 pounds, one-inch straight spindles, four and five lug or holes; 1350 pounds, one and one-sixteenth inch straight spindles, four and five lug or holes; 1750 pounds, one and three-eighths inch by one and one-sixteenth inch tapered spindles, five lugs; and 3000 pounds, one and three quarters inch by one and one-quarter inch tapered spindles, six lugs.

[Iron47]

If you are still not sure of the hub size you need, we will walk you through three methods of determining the spindle type and size on your axle and in turn, the size of hub you will need. Hub sizes are determined by the size and shape of the spindles on your trailer's axle. After removing the wheel and existing hub, look at the spindle.