Replace wheel bearing only, not the assembly

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by nicolas_xu, Jan 24, 2020.

  1. nicolas_xu

    nicolas_xu Junior Member

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    Is it possible to replace the wheel bearing only? Not the whole wheel bearing assembly, assuming I have a bearing press.

    Because one bearing is $3, whereas the whole assembly is $70. If it is possible, what is the model of bearing should I buy? Thanks!



    15050136_mhb_513122_pri_larg.jpg

    6200-2RS10-1-2T.jpg
     
  2. ericbecky

    ericbecky Hybrid Battery Hero

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    It is technically possible.
    But realistically, in the process of disassembling the assembly itself becomes damaged.
    Especially here in the Midwest rust belt.

    But if you are up for the challenge, go for it.
     
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  3. spiralhelix

    spiralhelix Active Member

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    Mine was a sealed unit, therefore the entire assembly needed to be installed. The job was pretty easy to do and if you’re lucky it will come out of the knuckle easily. If it doesn’t due to corrosion, a machine shop can press it out (they charged me $35). There is no need to press the new one in.

    I got a pair (even though I only needed 1) to have the extra at the ready if I needed it. I have 100k on the new bearing and no discernible difference from OEM. I went with TRQ with lifetime warranty from 1aauto (good or bad is up for debate) and on my other vehicle the bearing started to go and their customer service was awesome. Sent out a new bearing same day, got it two days later, returned the core. Easy. Only cost was the return core shipping.


    -Spiral
     
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  4. nicolas_xu

    nicolas_xu Junior Member

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    There is a special puller to pull the assembly apart to avoid the damage. Is this correct? like this one:
     
  5. ChapmanF

    ChapmanF Senior Member

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    What you've got on your car there is called a "third-generation hub bearing assembly" (there's an informative brochure about why the industry developed those).

    As you can see, a real one is not going to neatly press apart like your granddad's wheel bearings.

    hbu3.jpg

    Now, that being said, in the aftermarket parts world, there do seem to be "lookalike" replacements that are built out of a straight spindle and bore and a couple of generic ball bearings mashed in. If, at some point, somebody replaced the original HBU3 with one of those, then yes, you might be able to press it apart and replace the bargain-bin bearings in it, if you can find the size.
     
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  6. TMR-JWAP

    TMR-JWAP Senior Member

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    If it makes a difference, RockAuto.com offers a low priced hub assembly for ~$35
     
  7. nicolas_xu

    nicolas_xu Junior Member

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    Very good information. Thank you very much! I looks like the inner hub and outer hub form the bearing wall with trapped balls between them. No individual bearing at all.
     
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