Hubs are also available either in bare steel, painted, zinc plated and galvanized and for most applications either zinc plated or galvanized are recommended. Various stud patterns are available to suit most common rims and blank hubs (undrilled) are also available. It operates on taper roller bearings opposed on a shouldered shaft and normally has a larger inboard bearing compared to the outboard bearing. This is the standard for non-braking hubs with a rating between 1250 lb to 4500 lb depending on spindle/bearing and stud size. The rim rests up against a shoulder on the shaft and the whole unit is locked into place with a castle nut and split pin.ĭepending on the tire rating, this axle is good for up to 1000 lb load capacity and is considered light duty.ĭue to the bearings being fully sealed it is a good option for a small dinghy or kayak trailer where the distance between home and the water is short. The most basic of axles is the straight shaft axle with a set of deep groove ball bearings which are retained within the wheel rim (no hub).
Straight shaft axle for Integral Bearing Wheels When considering hub and spindle sizing it is important that you look at all your components for example - if I have a single axle trailer, you need to consider your tire load rating, your spring capacity and whether you require brakes or plan to fit brakes in the future. Most suppliers will be able to match the right hub and spindle setup for your trailer requirements or be able to recommend what to get and where to get it. Just looking through a hub and spindle catalog and you will see there is quite a selection on offer and it pays to do your homework especially if you are considering upgrading or fitting brakes at a later date.
Hubs and spindles come in a huge range of sizes, types and styles ranging from simple straight shaft axles suitable for very lightweight trailers to large taper roller bearing setups for heavy duty operations.
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