1. Trailer Bearings Races Seals Caps
  2. TruRyde
  3. Bearings
  4. Standard Bearings
  5. 2500 lbs Axle
  6. 1.375 Inch I.D.
Replacement Trailer Hub Bearing - LM48548

Replacement Trailer Hub Bearing - LM48548

Item # LM48548
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Trailer Bearings Races Seals Caps
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LM48548 - Standard Bearings TruRyde Trailer Bearings Races Seals Caps
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High-quality, tapered roller bearing. Replacement part uses industry-standard number. Lowest Prices for the best trailer bearings races seals caps from TruRyde. Replacement Trailer Hub Bearing - LM48548 part number LM48548 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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TruRyde Trailer Bearings Races Seals Caps - LM48548

  • Bearings
  • Standard Bearings
  • 2500 lbs Axle
  • 1.375 Inch I.D.
  • TruRyde
  • Bearing LM48548
  • Race LM48510

High-quality, tapered roller bearing. Replacement part uses industry-standard number.


  • Inner diameter: 1.375"
  • Matching race (sold separately): LM48510
  • Application: inner bearing for AH25555F agricultural hub

LM48548 Replacement Bearing

Video of Replacement Trailer Hub Bearing - LM48548

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Trailer Bearings Races Seals and Caps Rebuild

Speaker 1: Today we're going to take you through the rebuild process on a couple of hubs. We've got an idler hub, and here we've got a hub and drum assembly. Works with electric rigs, but this can also work for just standard discs, if you've got a disc brake style setup.Basically what we're going to show you is how to get all of the bearings out. How to remove the seal. How to remove the race's if they're damaged, then get them replaced in the proper manner. We'll show you how to use an easy loop hub, which we have here.The first thing we are going to need to do is, get the grease cap off the end.

It can have either a rubber plug in it like this one does, or it can be a solid metal cap.These are pressed fit in there, basically by tapping on them on the back side. To remove them, a deadbolt hammer is typically what we're going to use. We're just going to start tapping as we go around. You'll see a little separation start right here, and slowly it'll work it's way off.Now the next step's going to vary a little bit depending on your axle setup. Do you see this is going to have a keeper that goes around the nut.

And that prevents that from being backed off, or removed. A lot of times you'll have a castle nut, which will have just little tabs that stick off, and there will be a cotter pin that passes through it. Just depending on your application, you need to get the keeper for the nut off. This style we just kind of pry out. A cotter pin you would just remove of course.Once we have that off ...

We'll start to take off the nut here, and the washer that's in behind it. Now yours should look a whole lot more dirty than this. There should be a lot of grease packed in, and through the hub, this one's brand new. We thought it'd be nice to show you the components before the grease was on .. Of our washer that comes off.And then here we're going to have our outer bearing.

Continue to pull that. We're gonig to have our inner bearing here. That sits in the backside of the hub. And we didn't put it in yet, we will show you how to put it in. But a seal would typically be covering the backside here. We'll show you how to use a seal removal tool, or another tool. To get that pried up and out. To get an access to that inner bearing.Now for a drum style like this, that process for disassembly is going to be just the same. One thing to keep in mind if you're using a disc brake setup. You'll have to remove the caliper before the disc is going to come off.Now once we have the spindle exposed, as we said this is going to be really greasy. We want to get all the grease removed, and the first thing we'll do is inspect it. We want to make sure that it looks just like what we have here. Everything's nice and smooth. We don't see any kind of discoloration, or any marring on the metal. Indicating that our bearing's got hot.If you do have any of those symptoms, at this point it's time to replace those bearings. You don't want to repack them. Get new bearings, and put in there. You might have a bearing that's come apart in here. Another surface to ensure is in good condition, is where your seal is going to go. That helps seal all the grease inside of our hub. With a damaged or broken seal, that grease is going to seep out. Either out of the hub, or in this case into our brake assembly.Now if your axle has brakes, we're also going to check the disc. Make sure it doesn't have any issues, or your hub. And this is going to be a hub and drum assembly. The brakes are going to ride on this machine surface. You're going to check that for signs of excessive heat, discoloration, or cracking. And this is our magnet surface. We'll check that surface for the same issues.Now inside the hub regardless if it's a disc brake, it's a drum brake like this. Or just a standard idler style hub. You're going to have an outer race. Would be right here, it's a small tapered piece of metal your bearing sits in, and rotates on. That's basically the outer portion of the bearing.You have the same thing here on the backside. This is called the inner race. Now if those show any signs of wear, overheating, or cracking. Those are also something we'll need to replace, which we'll show you how to do in just a minute.Now, with your brake assembly exposed, if you do have electric brakes like we have here. It's a good idea to check all the components for wear, cracking, maybe missing pieces. Check your pad thickness to make sure those are in good shape. Basically if you have a non working brake assembly and you put everything back together, you're just going to have to take it apart and do it all over again to get back to the brake assembly. This gives you a really good option to be able to change them out.And most applications are going to use a four, or maybe a five bolt flange to hold them in place. And you'll just remove the lock nuts, or sometimes you'll have a hex nut with a lock washer. You want to remove those, and then simply slide your assembly off after you cut the wiring.The friction material itself should also be checked for any kinds of cracking, or overheating. If you have any grease inside the system at all, it's likely it's gotten on those pads. It's a good idea to get those changed. Now as far as the removal of the races go, it's going to be just the same whether we're using an idler style hub like we have here. A drum brake like we have here. You can basically see where the idler is, here in the middle of the hub. It's going to go all the way around there, and we just have this extra material here to provide our braking surface.Now if you're doing a disc brake style job again, it's going to be just the same here with the races living inside of the actual hub portion. You'll just have the discs there for the brakes to make contact. We're going to use this little bit smaller one, it's a little bit easier to manage to show you how to get these out. We've talked about where the races are. The outer here, the inner being closer to the inside, but on the backside of the race there's a little lip. That lip's meant to stick out just a little bit further than the hub, and provide us an area to put our tool on, and help to drive that out.If you look all the way through there on that inner race, you'll see that little lip that sticks out just from the hub slightly, and it gives us enough area to use our tool on. Now generally to remove these you're going to use a punch, similar to this. Some guys will use a screwdriver. Or a piece of pipe. If you have a piece of pipe that's small enough to fit inside of that diameter, you can take that down through and allow it to rest on that lip.Use our punch, and then just need a hammer. And we'll start working that out. We're going to tap all the way around. Kind of equally, and evenly apply the force to get it to come on out of the bottom for us.You can see now as it starts to come out there's going to be a little gap created between the hub and the race. And we can just keep going, bringing it on out. Then you can inspect the inside of the hub surface there. Make sure no damage or anything has occurred, and repeat that same process for the outer race if you plan on removing and replacing that one.Now in the outer flat edge, you can see we're going to have our tapered edge on this side. If we roll our race over to the flat side, typically there's going to be a manufacturers part number on there. That will help you identify which race it is, that you need to go back in your system. If those are rubbed off, worn off, if you can't read them. You can measure the outside, to outside diameter of the race here. It's a good idea to use a micrometer to get it exact.Now here's your basic micrometer. And again, the outside of the race is what we're going to need to measure. You want to go . I set the thickest point there. Looks like this one's going to be about 1.98. That's going to be the measurement you'll want to supply.Now while we've got this out, let's also look at the proper way to measure our bearing. Instead of the outside for the bearing, we need to measure the inside diameter. That's going to be pretty simple. Let's pull that out, find the largest measurement we can. Which here, looks like it's going to be 1.03. With that information, we'll be able to get the correct bearing, and the correct race, so they'll fit together properly and make a full bearing kit for us.Now here's the race, we're going to show you how to get this put back in. Basically just going to press fit inside of our hubs. We need to get it down on there. Kind of like that. And you'll have a couple options. A lot of times you're going to see do it yourself or at homer, just going to use a wooden block. Just place it on there. That's going to get you started, but at that point you'll struggle in getting it to go all the way down into it's seat.Now to take care of that problem, there are several seal drivers that are available. Seal and race drivers that are available out there on the market. It's designed to fit down inside of our race, inside of our hub and get it down there where it needs to go. This is part number ptw83020, has several different sizes, even if you have multiple trailers it's going to do the job.Now the side with the angle on it, is designed to fit down inside of our race. If we use the other side, that's going to be for driving your seal into place. Just want to hold it, and take it on in with your hammer. You'll see, you just want to insure that our race is all the way up against that line on the hub where it's supposed to mate to.Now when it comes time to pack your bearings you're going to have several different ways of doing this. You can just use your hand, is the traditional method. That's going to be the method probably reserved for the very occasional trailer work kind of situation. If you do it once or twice a year, probably get away with it that way.Next you would go to a, kind of a sandwich funnel style almost. If you look inside of there, you can see the bearing. It's located between the two pieces. Just use a grease gun. Start filling that with grease, and that's going to fill our bearing for us. And the third, with this one you're just going to place your bearing down and in. It should be pretty close to center. And then we've got our cone her that's going to go down and secure that.Now I think this style, wastes a little bit more grease than what this style will. This has a dust cap. You can see, you can keep your grease in there, put your dust cap on there and save it for later use. This will be if your going to do it every couple years. And this particular style would be if you're a more regular user.Let's start by showing you how to use a bearing packer. Similar to this. Again, we've just got our grease inaudible 00:11:07 here on the top. And then just slowly start to fill it. Now I like this style quite a bit. I think even regular users might enjoy it, because you can get a really quick visual look at that bearing. You're not going to have to overdo it, or have to much grease.You can kind of see in there now, we're starting to get grease to come out of it. Couple more pumps, we'll be good. You can see we've got grease coming out all the way around. Where all of our bearings are. Got a little bit of excess there. Just take that around the outside of it. And then we should be able to lift it off. And now you can see what we we're talking about. Just a little bit of excess there, that you're just going to wind up wasting.Now we'll take our bearing, we're going to place it right down in our race. And then we'll cap off the back with our seal. Right now our seal's going to fit in just like our race did. It's going to have a little bit of a pressure fit to it. Now very often in this situation, I see people using the four by four method. Kind of here, just placing that on and tapping it. As an option though, if you do have one of these. You can see that's designed to fit right on the top of the seal. And help drive it in.The biggest thing here is, just going to be getting it driven in squarely. You can see, this side's in a little bit further than this side. I'm going to start this side first. Now since we didn't have the opportunity to show you before, we're going to take a look at pulling a seal. Now this is a seal puller, we carry this on our website part number ptw1219. This is meant to hook underneath the seal. And then you kind of pull up on it, and just like our race you'll have to work all the way around that edge. Just bringing it out a little at a time.If you don't have that available. Another option would be a screwdriver. You just kind of get that under the seal, and turn it. And see, that'll allow you to also pop that out. We've taken care of our race. Our inner bearing. Our seal. The last component, before we put our hub back in place is going to be our outer bearing. Now with this bearing, I'll show you the hand packing method.This is definitely . Slightly dirtier method than the bearing packer. When we get grease on our hand we want to look at the larger side of the bearing. This is the smaller side. We have a larger side In between the inside and outside there's a gap. We can see our rollers in there. We want to grab that, and use that gap and shove grease inside of it. Now this is going to take a little bit, you want to work in the same spot until you get the grease pushed all the way through. We can see on the top there we've got a little bit starting to come through.And once we push it in the bottom, and you see it start coming out the of the top in those little drips, it's going to indicate that, that section's fully packed. Just need to work all the way around their outside edge now and do the same thing. Alright, once that's all the way around . The bearing will be ready for use.Now one more thing I like to do. We can see our inner bearing there, and our outer bearing. Well between the two, got a pretty big gap in there. If you'll take a . Pretty good amount of grease. We're just going to go all the way around. See how we can go all the way around the inside and just line that really well. The more grease we have in here, the less chance we have of any moisture getting in there, which can cause corrosion, rust, pitting. Pretty much things we do not like when it comes to bearings, races, and hubs.Put plenty of grease in there. And then this one does have the easy lube spindle, that'll even fill it in more. Now we can get our assembly slid on. I like to keep my thumbs on that outer bearing, just to prevent it from . inaudible 00:15:28 pushed off there. Now we can put on the original hardware that we removed, in taking off our hub the first time. In our case, we had our washer and our nut.Now most commonly you'll see pliers similar to this being used. We basically want to get that tightened down. Once it's fully tightened down you'll feel some resistance in the hub. We back it off just slightly. That'll give us a little bit more freedom of motion there. Something you don't want however . Is any movement in, or out on your hub. You want to be sure that everything is compressed, and you don't have what's called end play. Which would be the play in and out.Once we've got that set, then you'll put on whatever tight keeper yours came with. Get that put back in place. Now with an easy lube style hub, you're going to place your grease gun on the end, and then you can just fill the remainder of that hub up.Now for your typical applications, you're either going to have a solid cap, or a cap that'll have a rubber plug in it. A solid cap's going to be for an axle without the grease inaudible 00:16:51 here on the end. Goes on there. Just knock it on with your rubber mallet. Same with the one with the plug. Just gives you a removable area there, be able to cap that off.We'll show you how to put that on. Now as alternatives as well, a lot of times on boat trailers and marine kind of situations. You'll see a bearing buddy. This is going to apply a little bit of pressure on the grease, you'll fill it up. This kind of comes out just a little bit. That applies constant pressure on the grease to make sure we don't have any air, or anything like that. Then there is also an oil bath hub available. Now this is going to be for use with seals that are going to be designed specifically for oil bath use. You'll have to change that seal.We're using a double lip seal. There are also single lip seals available. Of course a double lip seal is going to give you just a little additional security. Keep that in mind when you order. But let's get this knocked on there now so you can see how that works. We just want to take the cap, we're going to center it. This is going to be very similar to what we did with the seal. And then just gently start tapping it around the outside. And it'll seep down on there for you.It's really going to be the same thing that you'll do with any of the end caps. Now with this side done, it's a good idea to take care of all the other hubs. Get them all on the same maintenance schedule. And as long as you'll periodically check the grease, take your trailer out for a trip occasionally. Just to keep everything lubricated. It should extend the life of these parts, and give us years of good service.

Customer Reviews

Replacement Trailer Hub Bearing - LM48548 - LM48548

Average Customer Rating:  4.5 out of 5 stars   (11 Customer Reviews)

High-quality, tapered roller bearing. Replacement part uses industry-standard number.

- LM48548

Everything went awesome. I am not used to that. Thanks. 760521

- LM48548

good bearings I use them in off road highly abused environment and replace annually as preventative maintenance have never had one fail 713365

- LM48548

Everything looks excellent. Adam did a super job putting together this package. I will be buying from etrailer again. Thanks Louis 670631

- LM48548

This was an order for replacement 40+ year old wheel bearing parts that had no identifying parts numbers. It was very hard to mach up, but etrailer provided enough information for me to locate the right parts. The parts were deliver quickly with great communication and fit perfectly! Thanks 433965

- LM48548

So far so good! 332910

- LM48548

I replaced all the bearings races seals and brakes on a small travel trailer. Bill P.at etrailer took my order and three days later I had everything in my hands. Great job Bill ! All the parts were exact replacements and the install went very smooth. There is video help on their website to show how to make the install easier. I have been dealing with etrailer for several years and have never had a bad experience. I was completely blown away by the pre assembled brakes . Backing plate, shoes, actuators, self adjusters and wiring all ready to bolt on. How much easier can it be? With the best prices, fast shipping and great help on line etrailer is the way to go. 293854

- LM48548

Again how much can I say about bearings? After traveling almost 6500 miles with these on my 1969 Yellowstone Camper, they still are good and no problems 267754

- LM48548

Crap. 255718

- LM48548

good 188875

- LM48548

bearings and seals all were fine. THANK YOU FOR YOUR SERVICE , Jay- 71542

- LM48548

It was delivered very fast!!! I got my bearings in 24 hours!!! Thank you Amanda! The only thing I would suggest is that they should be packaged a little better, individually. They were all in a baggie inside the box. Other than that...very happy. 42153


Ask the Experts about this TruRyde Trailer Bearings Races Seals Caps

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  • Finding Replacement Bearing Sizes for 2006 EZLoader Trailer
    I spoke with EZLoader, who gave me your bearing sizes. The inner bearing is # LM48548, which measures 1.375 inches. Its matching race is # LM48510. The outer bearing is # L44649, which measures 1.063 inches. Its matching race is # L44610. You can also purchase a grease seal set, # BB60002. We also offer grease caps for 1.98 inch hub bores, such as the standard grease cap # RG04-020, and the EZ Lube grease cap # DC200L-DCRP. I've attached several review videos of these products...
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  • Replacement Bearings For Spindle Measurements
    Unfortunately we don't have a trailer hub assembly compatible with the measurements of your spindle you gave. We don't have a compatible seal or hub to accommodate this combination of measurements. We do have the replacement Inner Bearing # LM48548, and Outer Bearing # L44649. The closest hub we have to the hub you mentioned and your bearing sizes is the Dexter Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 4-1/2 # 84545BX which uses a # L68149 (1.378" inner diameter) bearing...
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  • Replacement Axle With Hubs and Electric Brakes for 2,500 lb Single Axle Trailer
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  • Determining Capacity of Unknown Axle
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    Your drum/hub that is the Dexter 8-147 part number should have an inner bearing # LM48548, an outer bearing # L44649, and a grease seal # 58846. If this is the case then we do have some hub/drum assemblies that would work great for your application. The hub/drum assembly that I recommend using is the part # AKHD-545-35-K which is compatible with 3,500 lb axles and has the bearings and seal that fit your spindle. It fits 10" brake assemblies so you will want to verify that on your end. This...
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  • Bearing Recommendation for Trailer with LM48548 and L68149
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  • Replacement 10-Inch Hydraulic Brakes, Seals, Bearings for Boat Trailer With 6000-lb Axle
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  • Available Replacement Trailer Axle Kits
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  • Hub and Bearing Replacement for Shorelandr Trailer Frame PWC1512/13
    Thanks for the info you provided. I was able to find that the bearings are 1-1/16 inch and 1-3/8 inch. Unfortunately we don't have any specific hub to fit that, so you may be able to use the # LM48548 and # L44649 for your current hubs. You will need to pull a hub to confirm the bearing numbers match those on the face of your current bearings. the Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 5 on 4-1/2 # 8-258-5UC1-EZ is not a fit. If you need further help, let me...
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  • Correct Seal For 2.562 Boat Trailer
    After running the numbers the Seal Set # BB60010 you were looking at is for the L68149 Inner Bearing or the 1.810 Bearing Buddy. I don't think that is what you're looking for. I found this Seal Set # BB60002 which is for LM48548 or L68149 Inner Bearing and also for a 1.980, 1.968 or 2.562 Bearing Buddy. The 2.562 matches the seal number you provide and this is the best match I could find on our site. I've included a video Randy made to help you with the install!
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  • Hub and Brakes for Vintage Camper With Dexstar Wheels
    Thanks for all the numbers and information. Since your trailer uses # LM48548 inner bearing we do not have a replacement hub and drum kit because of the spindle it uses. The # LM48548 bearing is only used on some agricultural hubs. So that leaves a few options, a new axle or an axle-less option. For a new axle you will need some measurements, you'll need to know the hub face to hub face dimension, and from spring center to spring center. The other thing you need to know is the weight...
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  • Replacement Hub with Inner Bearing LM48548 and Outer Bearing L44649
    I may have a solution for you, but we do not have any hubs that are compatible with the # LM48548 inner bearing that you've currently got in your hubs. Additionally the # 84556UC3 is not going to fit your spindle because the # L68149 outer bearing it contains is going to be slightly too big. You could continue to use your old hubs and simply replace the bearings with the # LM48548 and # L44649. For the races, you'll want # Replacement Race for LM48548 Bearing # LM48510 and # L44610...
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  • Inner Diameters Of Bearings Included In Dexter Hub Assembly # 84655UC1-EZ
    The inner diameter of the # L68149 bearing measures 1.378 inches. The 1-3/8 measurement you gave is equal to 1.375 inches. The inner diameter of the # L44649 bearing measures 1.063 inches. The 1-1/16 measurement you gave me is equal to 1.062 inches. You can use a digital caliper to measure your spindle to ensure you find the correct size bearing. A digital caliper allows you to measure as exactly as possible. If your inner bearing measures 1.375 instead of 1.378, you will want to...
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  • Replacement Bearing and Races for 1-1/16 Inch and 1-3/8 Inch Inner Diameter
    For your bearing kit of bearings, races, and seal for your dimensions, you will want the following: -Bearing # LM48548 for your 1-3/8 inch bearing -Race # LM48510 -Bearing # L44649 for your 1-1/16 inch bearing -Race # L44610 Because it doesn't come in a kit for this unique measurement, I recommend measuring for your seal using a digital caliper like # PTW80157. If I were just to guess, seal # 58846 is likely the fit.
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  • Recommended Axle-Less System with Electric Brakes for 1969 Travel Trailer
    For your 1969 travel trailer, we unfortunately don't have a direct fit for your spindles. Your # LM48548 bearing is an agricultural bearing size that is not consistent with the electric brake compatible hubs on modern electric brakes. I've looked at swapping races and bearings and cannot find any compatibility. My recommendation is to change your axle to Timbren Axle-Less Trailer Suspension System w Electric Brake Hubs - Straight Spindle - 3,500 lbs # A35RS545E. This kit will replace...
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  • Recommended Replacement Axle for 1962 Ideal 16 Foot Travel Trailer
    The # LM48548 is a fit for a 2500 lb axle but we don't have the other bearing. I recommend replacing your axle with the Timbren Axle-Less Trailer Suspension System w Electric Brake Hubs - Straight Spindle - 3,500 lbs # A35RS545E. This will give you the bearings, hubs, drums, and standard size spindles for replacement parts as needed and also will replace your suspension. You simply use a 2 inch square tube (not included) between the assemblies in the integrated holes and bolt the assemblies...
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Info for this part was:

Installed by:
Jeff D
Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Chris R
Updated by:
Sarah W
Updated by:
Alexander C

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