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. mikesgoat

    mikesgoat Member

    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. PeteL

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

    They should drive or press out, without other special tools. But I would do it cautiously, so as not to damage the hub.
     
  3. mikesgoat

    mikesgoat Member

    So a standard and a mallet? Lol
     
  4. JAlves

    JAlves Sponsor

    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. oddfirejeeper

    oddfirejeeper Active Member

    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. djbutler

    djbutler Sponsor

    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. mikesgoat

    mikesgoat Member

    Copy. Thank you. I'll try to find my patience lol
     
  8. johnsotd

    johnsotd Member

    FWIW I use a brass drift similar to djbutler so as not to damage any steel surfaces.
     
  9. djbutler

    djbutler Sponsor

    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. AKCJ

    AKCJ Active Member

    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).