starting strength gym
Page 2 of 2 FirstFirst 12
Results 11 to 17 of 17

Thread: 30mm barbell with bearing

  1. #11
    Join Date
    Jul 2007
    Location
    North Texas
    Posts
    54,932

    Default

    • starting strength seminar december 2024
    • starting strength seminar february 2025
    • starting strength seminar april 2025
    If he's talking about what the industry calls "exercise plates," then no, there are no rotating sleeve bars for those. But the standard equipment here is the Olympic standard barbell.

  2. #12
    Join Date
    Oct 2024
    Posts
    6

    Default

    Quote Originally Posted by Maybach View Post
    I think these are all 30 mm *shaft* bars, whereas OP is looking for bars with a 30 mm *sleeve*. This confused me as well. I think John Poe may be right if only because sleeve diameter isn't even listed for most barbells, because no one uses 30mm sleeve diameters.

    As others have said, cleaning with a bushing bar isn't all that bad, unless you are really fiddly about it, and if you are fiddly about it you should invest in some normal sized weights. If I had to lift with one type of bar, I'd choose a bushing bar because the slightly chunkier rotation on a clean is less disruptive than the wobbly feeling of pressing with a bearing bar.

    Bushing bar would be fine - but i couldn't find one

  3. #13
    Join Date
    Oct 2024
    Posts
    6

    Default

    Quote Originally Posted by Jason Donaldson View Post
    Rip, I think John meant a bar with 30 mm sleeves, not the bar itself. Juergen is using 1 inch inner diameter plates (exercise plates) or their European equivalent, and hence is looking for a bar with rotating sleeves that will fit those.

    Juergen, consider that a rotating sleeve must add diameter to the section of the bar around which it sits. Barbells with sleeves for 50mm ID plates have that 50 mm sleeve around a 27-30 mm bar that runs nearly the full length of the sleeve, so the 27-30 mm steel bar is bearing the weight. For a bar with a 30 mm grip section, the ends would have to be milled significantly smaller than a 30 mm diameter to fit inside the 30 mm outer diameter sleeves while leaving sufficient sleeve thickness + the bushings/bearings. This would sacrifice far too much structural integrity to be safe for use.

    Think also about dumbbells made from these kind of plates (e.g. the ones Rip discusses here: https://www.youtube.com/watch?v=V7pVtXPYtGM ). They use sleeves for the hand to grasp and allow the bar stock to rotate inside of them. This is cheaper, but it also reflects the same need - adjustable dumbbells that take this size plate either do not rotate, have a rotating sleeve, or depend on slop between the bar and the plates for rotation. If you're going to stick with these plates, you'll need to get your rotation from something other than the sleeves on the barbell.

    The 2"/50mm ID plates and their associated bars are better in the long term for this and many other reasons.
    That totally makes sense.
    Thank you all for your answers.

  4. #14
    Join Date
    Apr 2023
    Posts
    731

    Default

    Quote Originally Posted by Juergen View Post
    Bushing bar would be fine - but i couldn't find one
    Oh Jesus it doesn't even have a sleeve. Have you tried cleaning with it? How bad is it?

  5. #15
    Join Date
    Oct 2024
    Posts
    6

    Default

    I'm currently working on learning to clean. Before that I never questioned my barbell.
    This is my latest try:
    Hang Cleans - YouTube
    I do not firmly fixate the plates axially. In the video you can see that the plates rotate freely.

    Feel free to check my form.

  6. #16
    Join Date
    Dec 2021
    Posts
    957

    Default

    You're pulling with the arms - the way to see this in the video is to pause it, and move the slider bar carefully to see if your elbows bend at all before your feet leave the ground. (See the 2, 7, and 11 second marks.)

    In my experience, it's a lot easier to review this on YouTube shorts like this by viewing them as videos, as detailed here: Required reading before posting , under General Filming Guidelines. This allows you (and others) to watch the video at slower speeds, as well - much more useful than as a short.

  7. #17
    Join Date
    Apr 2023
    Posts
    731

    Default

    starting strength coach development program
    These have extremely bad arm pull which you need to fix. But it doesn't look like the lack of sleeves really presents a problem.

Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •