The hub assembly then fits on to the axle, which connects the tire component to the rest of the car. The purpose of the wheel hub is to serve as the glue between the tire and the axle, the tires are attached with studs to the hub assembly. If they corrode or are improperly installed it will throw the trailer tires out of alignment and could cause serious damage to your vehicle and trailer. In the next few articles weвЂ™ll look at how you can replace the brakes, coupling and the ever-important jockey wheel to finally get it on the road again.Д«efore you decide which tyres to put on your trailer, take a look at our guide to traction, tread and temperature ratings.Trailer wheel hubs play an integral part in keeping trailers moving, the wheel hub assembly connects the trailer to the trailer axle and facilitates their spin. Once youвЂ™ve attached the wheels, your remodelled trailer is very nearly ready to stand on its own again. If possible, match them to the towing vehicleвЂ™s tyres to reduce the need for spares. If you plan to take the trailer off road, wide tyres with deep tread will give you more traction. To get maximum life out of your new tyres, have them balanced so the wheel and tyre weight is evenly distributed before you take to the road. Make sure they have plenty of tread and can handle the weight of your vehicle. Finally, fit a grease or вЂdustвЂ™ cap in place to keep the grease in and impurities out.Д¬hoose your tyres carefully as they will impact both the trailerвЂ™s stability and performance.If it wobbles, loosen and tighten the nut again until it settles then lock it in place with the cotter pin.

Test by holding the top of the tyre and rocking it gently.Coat the axle shaft with grease, slide the hub in place and tighten the nut.Partially fill the hub with grease and place the inner bearing and seal into the hub.

Do this to both inner and outer bearings. Pack the bearings by getting a wad of grease in the palm of one hand and pushing them into it with your other hand, using a rolling motion to squeeze the grease all the way through.If you plan to use the existing spindle and hub, check they arenвЂ™t scored or damaged.Lift out the outer bearing and clean both hub assembly and spindle with kerosene or solvent.These can then be dislodged using a hammer and punch. The inner bearing and seal with usually come out with it. If itвЂ™s not already apart, remove the trailer hub assembly and pull off the hub.Jack up the trailer and remove the wheel.One way to ensure this is by buying genuine replacement parts that are the same as the originals. Some manufacturers offer complete wheel hub kits, which is handy if you know the parts will suit your trailer. Some are suited to loads of a few hundred kilograms, while others will support up to 3 tonnes.

The wheel hubs and bearings you put on your reconditioned trailer must be rated correctly for the weight youвЂ™ll be hauling. If theyвЂ™re corroded or worn, you could end up spending hours on the side of the road waiting for a tow truck. Your trailer hubs play a crucial role since they secure the wheels to the axle. In this fourth article on rebuilding your trailer, we look at assembling the wheel hubs and bearings, attaching them to the new axle and getting the wheels in place.

Trailer spindle and hub