The heat that has been generated over time along with the oil bleed eventually will cook the grease thickener into a hard, crusty build-up that can impair proper lubrication and even block new grease from reaching the core of the bearing. This leads to rapid oxidation (chemical degradation) of the grease as well as an accelerated rate of oil bleed, which is a separation of the oil from the thickener. Too much grease volume (overgreasing) in a bearing cavity will cause the rotating bearing elements to begin churning the grease, pushing it out of the way, resulting in energy loss and rising temperatures. Also according to the experts at Machinery Lubrication: If not using a bearing body it is indeed possible to over grease your trailer bearings and blows out a seal. The use of strong chemicals like gasoline can damage the inner seal. When cleaning the old grease off the bearings, it is best to use paper towels or rags. So if anything looks shady or doesn’t feel right, just go ahead and replace them.
![how to repack boat trailer bearings how to repack boat trailer bearings](https://files.osgnetworks.tv/floridasportsman/uploads/2012/07/DSC_0003_1.jpg)
New bearings are inexpensive and can save you a headache later. If you find any of these signs of deterioration, it is better to replace the bearings instead of packing them. When in the proses of packing your boat trailer bearings also keep an eye for anything that might not look write like:
HOW TO REPACK BOAT TRAILER BEARINGS HOW TO
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HOW TO REPACK BOAT TRAILER BEARINGS INSTALL
Install dust cover or bearing buddy, and you are done.
![how to repack boat trailer bearings how to repack boat trailer bearings](https://www.thepopupprincess.com/wp-content/uploads/2015/07/ppbearingheader.jpg)
Don’t forget to Coat the outer edge of the seal with liquid sealant.
![how to repack boat trailer bearings how to repack boat trailer bearings](https://i.imgur.com/SrEYX4W.jpg)
This is why these types of trailers require service and inspection more often. Unlike regular trailers, boat trailers get submerged in water on regular bases. Manufacturers recommend to remove old contaminated grease from the hub and repack with new grease instead of just adding more. So how often to grease boat trailer bearings? Every 3,000 to 3500 miles or annually, whichever comes first. Here I have compiled all the information you’ll need to take good care of your boat trailer bearings. I had this happen to me and would want you to learn from my mistake. The thing is that, if not maintained regularly and properly, a faulty or seized bearing can ruin your weekend. Boat trailer bearings are often under looked or forgotten.