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Home / New / If your wheel hub dust cap has rusted or coined enough to no longer fit

If your wheel hub dust cap has rusted or coined enough to no longer fit

A failed wheel hub dust cap can be frustrating, but there is a solution to fix it. In this article, you'll learn how to replace a wheel hub dust cap, grease cap, or helix. A wheel bearing cap will also keep the bearing's grease inside, and will not corrode. In addition, you'll learn how to install a new wheel hub dust cap if it's missing or damaged.
Replace a failed wheel hub dust cap
If your wheel hub dust cap has rusted or coined enough to no longer fit, it may be time to replace it. Dust caps are a common problem on bikes, as they become too loose and are not functional for track use. Generally, this happens due to heat and overpacked bearings. You can replace your failed wheel hub dust cap by following the steps below. However, keep in mind that not all wheel hub dust caps are made the same.
First, you must remove the wheel hub assembly. To do this, you need to remove the lock nut and bearing assembly. Then, you can remove the hub cap. If the dust cap is loose, you will have to use a hammer to break it. Be sure to get the whole wheel hub out in one piece. Then, remove the hub dust cap. If you are unable to remove the hub in one piece, you can use an air hammer with a rounded bit. The shock from the hammer will cause the inner bearing race to break loose from the king pin.
Next, remove the rubber plug in the hub dust cap. The old grease will be in the dust cap reservoir. Remove the old grease and add the new one. When it flows out near the spindle, the old grease will flow out. Once you've done that, turn the wheel again to check the amount of grease in the wheel hub dust cap reservoir. Once the old grease flows out, insert the new one.
Replace a failed grease cap
The easiest way to replace a failed wheel hub grease cap is to simply remove the lubricating fluid from the axle. This process requires some knowledge of axle mechanics and some basic tools. First, you'll need to remove the outer race of the wheel hub. This may take a few taps with a hammer. You can also use a wooden dowel. Make sure to use eye protection and wear a rubber glove when handling sharp objects. After removing the old race, you'll want to press the new one into the hub.
To replace a failed wheel hub grease seal, use a special tool to pry out the old grease seal. A grease seal puller can be purchased at an auto parts store. This tool is useful because it can pry out the old seal without damaging the bearing. If you don't have this tool, you can try pushing a wadded paper towel into the hub to force the grease out. Once the grease is out, the bearing will likely fail.
Once you've retrieved the old grease cap, you should use the new one. The new one will fit snugly into the hub cavity and prevent any debris from entering. The old grease cap will be difficult to remove, so make sure you have a spare. You can also try to reassemble the wheel hub to install the new one. If the old grease cap doesn't fit tightly, you can try a mechanical grease packer to help you out.
Replace a failed helix wheel hub dust cap
The helix wheel bearing dust cap is made of zinc with an attractive silver finish. These dust covers have been designed to meet industry standards for tight sealing against particulate matter and debris. Without a properly functioning dust cap, the outer hub may become contaminated with dirt and debris, which can negatively affect the health of vital components within the inner wheel. Keeping your wheel bearing dust cap in good shape will prevent this problem and ensure a long-lasting wheel.