Disk Brake Wheel Bearings

Gary521 said:

I have 7000 lb. axles. The correct outer wheel bearing for 7000 lb axles with 9/16 wheel studs is # 02475 This is the same outer bearing if you have 8000 lb axle. This is for DISK BRAKES.

So if you have to replace a bearing, make sure you have the correct part and specify drum or disk brakes.

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Gary521 said:

This is for those who have replaced the drum brakes with disk brakes. I had a wheel bearing failure about a month ago. When I went to replace the hub/rotor, I found that the outer bearing specified was different than the bearing originally specified by the original supplier, when I bought them new. I bought the brakes from an on-line supplier - can't remember who. Why the different bearing numbers? I decided to check all the bearings on my trailer and found them ALL to be bad. I have Kodiak brakes so I called Kodiak to find out why the different bearing numbers. This is where it gets complicated. As of 2018, Dexter Axle now owns both Kodiak and Titan brakes. There are not a lot of folks at Dexter that you can talk to that know anything about these brakes. However, I was able to talk to the engineer responsible for Kodiak brakes and he was able to shed some light. This is what he told me. Kodiak and Titan brakes are identical and always have been. Titan was a knock off of Kodiak. The Titan brake line is going away BUT they MAY keep the Titan name of a couple of products.

Here is where my particular bearings failed. The hub/rotor is different for the 9/16" wheel stud vs the 1/2" wheel stud on the same axle size. The outer bearing is different. HOWEVER, some on-line suppliers do not realize this and specify the same bearing outer bearing. Yes, for most of the wheel studs on Bighorn, Big Country and Landmark, we have 9/16 wheel studs BUT, as stated, some suppliers do not now that there are different bearings. The Dexter engineer I talked to said that he was new to this product line and he did not know why there were different outer bearings for the 1/2" wheel stud and the 9/16 wheel stud on the same axle. He was going to do some digging to find out the history. So when I bought the brakes, I was told the incorrect outer bearing number to get.

I have 7000 lb. axles. The correct outer wheel bearing for 7000 lb axles with 9/16 wheel studs is # 02475 This is the same outer bearing if you have 8000 lb axles too. The incorrect bearing for 7000 lb axes is # 14125A . This is for DISK BRAKES. This is where some suppliers get confused. The outer bearing for DRUM brakes with 9/16" wheel studs on 7000 lb axles is the # 14125A.

So if you have to replace a bearing, make sure you have the correct part and specify drum or disk brakes.

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MTPockets said:

A note about the part numbers.... 02475 and 14125-A are both the bearing “cone”.. that is the inner race and rollers. Both are 1 1/14” I.D., but you should always use the correct matching part. That number does not include the outer raceway that is pressed into the wheel hub. The reason bearing manufacturers do this is that there are different size diameter outer raceways. I should note also that you should always replace both inner cone and outer race. Never just the inner cone, and also order the same number stamped on that part as well.
I retired from the bearing business and conducted maintenance training classes as well. It’s very common that shortcuts are taken and the outer races are not replaced, leading to early bearing failure.

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Gary521 said:

Just to double check, I pulled the race from the outer bearing on one of the hubs. Yes, it was for the 02475 bearing. I do intend to replace the races as well as the bearings. I did some more checking and some suppliers are still listing the incorrect outer bearings for these disk brake hubs. The inner bearings are all the same. I could not understand why I had a failure as I have probably repacked a gazillion of these things. I have a bearing press so replacing these races goes fairly quickly.

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mlpeloquin said:

I have got to ask, can someone give me the part numbers for Titan 7k breaks for the:

Inner bearing and race:
Outer bearing and race: 02420
Grease seal:

I don't want to take it apart to find the part numbers first. I have limited time, 72 house, in front of my house to work on it. City ordinance and thy do enforce it.

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dave10a said:

https://www.etrailer.com/s.aspx?qry=02475

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Gary521 said:

The only other number you need is the inner race: 25520

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Like I said, Chinese bearings. Inexpensive-yes, good - who knows.

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MTPockets said:

but even Timken is made in China and other countries as well as USA. Much more from Germany, Japan, Romania, France. Bottom line, except emotions, nothing to worry about using foreign made.

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Dennyha said:

I have to respectively disagree. As to Timken bearings being made in China, that is somewhat true. Timken does have bearing plants in China, as well as countries around the world. One of the struggles all bearing makers have in a China is getting clean steel. BUT, the bearing sizes we are talking about here, for Timken specifically, are all made in Bucyrus, Ohio. The steel is made in Canton, Ohio.

No bearing manufacturer is perfect, and Chinese made bearings will likely be fine, but the odds of failure due to cleanness, heat treatment, or grinding issues are significantly lower on non-Chinese made bearings.

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MTPockets said:

And the source of your information?

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