If you don’t have a packer, place some grease on the palm of your hand and use your fingers to push it into the rollers until it comes out the other side of the bearing. Use a packer (link to amazon) to pack new grease into the bearings.Use a rag to clean relly god al the components.You might have to use pliers or a seal puller to remove the seal. Pull off the hub from the spindle and repeat the proses to remove the inner bearing.if it gets stuck, shake the tire from side to side, and it should come right off. Wipe grease with a rag and remove the cotter pin, axle nut and spindle washer.You can use a flat head screwdriver to pry it out or a mullet to tap it from side to side until it brakes loose. Remove the bearing buddy or dust cover.Jack the trailer up enough so that the tire you are working on can spin freely and place jack stand to support the trailer.Before jacking up the trailer, loosen up lug nuts this way, the weight of the boat and trailer will prevent the tire from spinning.Place wheel chocks on the side you are not working.It will take you about one hour, but it will save you a lot more in the long run. Repacking your boat trailer bearings is the best way you keep your trailer rolling smooth. How To Repack (Re-grease) Boat Trailer Bearing Remember that sitting on top of that old trailer is your precious boat, taking good care of the trailer will ensure that you can tow your boat to and from the water without any incidents. 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.