Replacement Bearings for a HADCO LA370R Idler Hub w/ 25577 and LM67048 Bearings
Updated 12/22/2025 | Published 10/20/2024
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Question:
Ive got an old HADCO LA370R idler hub. Need to replace the bearings. The ones I just pulled out are labeled LM67048 and 25577. But Im wondering if the 25577 should be a 25580, according to other old forums around the internet. Do you have an old HADCO catalog or info to confirm the bearings I need?
asked by: Andy I
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Expert Reply:
Hey Andy thanks for the pictures and the information! I am sorry but we do not have an old Hadco catalog lying around. We do not carry the 25577 bearing but it does have the same inner diameter of the 25580 bearing item # TMK44FR and the outer diameter is within .001" so it should work as a replacement.
To replace your LM67048 bearing you'll want the Timken Replacement Trailer Wheel Bearing item # TMK56FR.
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Grease Seal - Single Lip - I.D. 1.750" / O.D. 2.33" for Dexter 2.8K Axles
- Trailer Bearings Races Seals Caps
- Seals
- Grease Seals - Single Lip
- 1.75 Inch I.D.
- 2.33 Inch O.D.
- Redline
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on Trailer Bearings Races Seals Caps
Jerred H.
12/22/2025
Hey Andy, did the 25580 and LM67048 bearings end up fitting your old HADCO hub the way you needed? Knowing how that swap worked out could really help others trying to match older parts.