Aside from being really helpful with trailer bearings, you can also use it on other types of bearings. For instance, for your car, truck or RV bearings. It has a minimum id of 1/2 an inch with a maximum od of it is going to 5 inches and the height of the bearing will work from a 1/4 inch up to 2 inches tall. Basically when you get it its going to be unassembled like this and you assemble like so. To use this device we will take a typical bearing we have here, and you just install it. It will slide over, it does not have to be centered as this device is self centering. You want to make sure the cone of the bearing is pointing up like this, make sure the narrowest point is on top. Now we take the top half and thread it on also. This makes a seal between the top and bottom halves of the bearings. What happens is the grease will come out from inside the bearing out the top a little bit and then comes out through the rollers themselves.
We will show you where the opening is on the inside. As you can see you put the grease at this point here and the grease comes out at the bottom, out of this hole, and it fills up the cavity around the bearing. Now it has nowhere else to go but back up through the top half of the bearing and out through the rollers. There you have it. It is a nice easy to use tool with all steel galvanized construction. This unit can be used with powered or non-powered grease guns. This product was really intended for your do-it-yourselfer at home, it really makes life a little bit easier. This is really something you should have in your toolbox if you are going down the road and you are having problems, this will make things easier for you. There you have it for part # L70025, the LubriMatic Deluxe Bearing Packer from Plews.