Скачать или смотреть etrailer | Installing the Timken Replacement Trailer Wheel Bearing 15123

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Hey there, neighbors. Kevin here with etrailer. And today we're gonna be taking a closer look and showing you how to install the Timken Replacement 15123 trailer hub bearing. When it comes to our hub setup, there are a few main components here. I've got three of 'em in my hand right now. And the first one is our outer bearing.

That's what's gonna ride right here on the outside, and it's gonna be the first thing that we're gonna pop out of here really once we go to take off our wheel and then pop out our hub assembly. As we go further along on our spindle, we're gonna get to the inner bearing, which in our case is larger just because we're at a higher axle capacity. Now if you're in that 2,000 pound range, even up sometimes into the 3,500 pound range, you could find that the outer and inner bearings are the same size. But in our case we don't have a straight spindle. It is a tapered one.

So we do have the larger and smaller bearings to go along with that. And how we cap everything off at the end of our hub is going to be a grease seal just like our Timken one right here. And that is gonna get pressed in and prevent any grease from backing out of our hub and then getting all over our brake assembly. And the other main component here is going to be our grease. Now for our specific application, we are using high temp grease.

And this is what's going to make sure that everything stays lubricated and can properly spin because if your bearings start to seize up and then they can no longer spin, they're gonna overheat and then they're gonna explode. You're gonna have metal shavings all on the inside of here and it's gonna potentially end up damaging your spindle to the point where it's not salvageable anymore and you're gonna have to replace your axle. Now the other half of our bearing setup is the race. And the race is what gets pressed into the borehole of our hub and then that matches up with the cone shape of our bearing and allows it to spin. So that way we have contact on our hub, contact on our spindle, but we still have that movement so that way our wheels can roll.

Your part number has worn off, then you're gonna have to start looking at your spindle. Now when we're taking a look at it, there's gonna be different sections that we're gonna be needing to measure for 'em for our specific bearing or our grease seal. So starting here at the top, you can see this ledge right here. So this is called a journal at any one of these sections where we have our stuff sitting. And for our grease seal, that's gonna sit right up on here. You can see we have our inlet where our grease is gonna be pumped in here through that greaser fitting and that's gonna kind of help press that out with the grease seal holding it all in place so we don't get grease all over our brake assembly. Just past that is where our inner bearing's going to sit. It's gonna ride right on this journal right here. And then all the way here next to our threads at the end of our spindle is where our outer bearing is going to sit. Now when we have this all nice and cleaned up, we want to make sure that we're also double checking, making sure there's no grooves or any kind of scratches on here where our bearings or our grease seals sit. If there are, we wanna make sure that we're kind of feeling it with our fingernail. If your fingernail gets caught on any of those little grooves or scratches, then it is past the point of saving and it's now time to replace the spindle or the axle itself. So to measure this, we're gonna wanna make sure that we have a caliper. I'm using a mechanical one. I would highly recommend switching over to a digital one. They're pretty cheap. You can easily pick one up here or at a local auto parts store. And what that's gonna do is give us our precise measurement because we need to be up to the third decimal point here. So if we take a look at our mechanical, it's gonna put us at two inches. And so 2.254 is what we're getting right here. It's a little bit off from what I know it actually is just because our mechanical caliper isn't always the easiest to read and it kind of varies a little bit. Then we can kind of come down here. We've got our inner bearing so we can measure for that as well. And what we're getting right now is just our inner diameter. So from there, we would need to go over to our hub and actually mea