1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Bearing cup

Discussion in 'Early CJ5 and CJ6 Tech' started by mikesgoat, Aug 31, 2013.

  1. Aug 31, 2013
    mikesgoat

    mikesgoat Member

    Fresno
    Joined:
    Jul 23, 2010
    Messages:
    92
    I am in the process of replacing my front axle wheel bearings. Can I just beat the heck out of the old cups to get them out?! Do I need a special tool.
     
  2. Aug 31, 2013
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
    Joined:
    Aug 3, 2003
    Messages:
    9,805
    They should drive or press out, without other special tools. But I would do it cautiously, so as not to damage the hub.
     
  3. Aug 31, 2013
    mikesgoat

    mikesgoat Member

    Fresno
    Joined:
    Jul 23, 2010
    Messages:
    92
    So a standard and a mallet? Lol
     
  4. Aug 31, 2013
    JAlves

    JAlves Sponsor

    Yuba City, CA
    Joined:
    Oct 8, 2009
    Messages:
    85
    Clean the hub so you can see everything. With a punch and small hammer, tap the bearing race out slowly and evenly. Don't let the punch ride on the bore or you will peen the surface each time you tap the bearing. Extreme caution should be used when driving in the new one using a punch or you may damage it.
     
  5. Sep 1, 2013
    oddfirejeeper

    oddfirejeeper Active Member

    Hamilton, MI
    Joined:
    May 5, 2004
    Messages:
    1,253
    use the old cup and a piece of wood with a mallet to drive the new one in carefully. this way it helps to go in straight
     
  6. Sep 1, 2013
    djbutler

    djbutler Sponsor

    Rio Linda CA
    Joined:
    Nov 5, 2007
    Messages:
    727
    I use a 1/2 inch copper rod as a drift punch. The copper is softer than the steel of the hub, also it won't damage the new bearing race driving it in.
    A piece of aluminum will also work for this.

    Don
     
  7. Sep 1, 2013
    mikesgoat

    mikesgoat Member

    Fresno
    Joined:
    Jul 23, 2010
    Messages:
    92
    Copy. Thank you. I'll try to find my patience lol
     
  8. Sep 1, 2013
    johnsotd

    johnsotd Member

    Senatobia, MS
    Joined:
    Apr 23, 2006
    Messages:
    454
    FWIW I use a brass drift similar to djbutler so as not to damage any steel surfaces.
     
  9. Sep 1, 2013
    djbutler

    djbutler Sponsor

    Rio Linda CA
    Joined:
    Nov 5, 2007
    Messages:
    727
    Yes, brass is also good for this.
    One thing to remember, using a hardened steel punch for this is inviting shattering or chipping the bearing cup. Not only will you need a replacement, but the pieces may end up in your eye for which there is no replacement available.

    Don
     
  10. Sep 4, 2013
    AKCJ

    AKCJ Active Member

    Fairbanks, Alaska
    Joined:
    Aug 12, 2003
    Messages:
    1,035
    I once saw a guy knock the race out using a special (steel) punch. It had a curved notch such that it would contact the race but not the hub. Not sure if he bought it that way or made it from a regular punch. Seemed like a very good way to do it. I just use a round brass punch (not very expensive at NAPA).
     
New Posts