Acquiring a Trailer Center Cap When buying trailer center cap, there are a few points to think about. For one, like any type of other vehicle parts, there is a series of styles that will match with your truck as well as develop a collaborated look. There are also a number of additional devices that you can acquire to enhance your trailer. These consist of axle covers, aero covers, wheel simulators as well as more. Some people acquire dirt caps to maintain the components far from their trailer bearings. These can be an outstanding concept, and also they are fairly economical. The issue is that they can become harmed, usually when eliminating them to examine or regrease the bearings. Oftentimes, the cotter pins that hold them in position may come off. If the wedge pin is not correctly set, it can scrub against the within the dirt cap as well as press it off. A better option for protecting your bearings is to invest in oil-lubricated centers. Numerous makers, consisting of EZ Loader and also Ranger, make these. They function by dipping the hubs in oil that is circulated by centrifugal force as the trailer wheel rotates. Some professionals think this technique of lubrication will last longer than grease, and also it is easy to inspect the degree by looking at the oil shade (milklike indicates water). One more advantage of these centers is that they are less complicated to relubricate. It is advised that the lubrication be finished with an automated hand grease weapon as opposed to a pneumatically-driven or auto-greaser, which can apply too much pressure. The excess pressure can warp the real seal on the bearing and also trigger the dust cap to blow off. One disadvantage to utilizing oil hubs is that they can cause troubles if your trailer sits for long periods of time. The oil will have a tendency to settle versus the reduced fifty percent of the bearing setting up, leaving it prone to contamination from water. This will not occur with a grease-lubricated center. Also, some owners locate the oil dries up, producing a hard crust that can be tough to get rid of. Thankfully, Tiedown Design supplies a system that can transform an oil-lubricated trailer hub to a grease-lubricated device. This was a 2001 Marine Aftermarket Add-on Trade Convention Technology Award champion. Kodiak Trailer additionally makes a comparable product called TurboLube. It is a two-part system that secures the inner part of the center with an outer part that spins with the hub to maintain the oil distributing.