Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Pillow block help

  1. Aug 13, 2008 #1


    User Avatar
    Gold Member

    I'm having some problems regarding what type of pillow block to use to support a 2'' diameter black iron pipe vertically, yet letting it spin on the pillow block.

    I'm aware that the weight applied to a pillow blocks is usually parallel to the mounting surface (the way one would usually use a ball bearing). im wondering if there is a pillow block out there that can support 100-150lbs, but on the wrong axis.
    I plan to mount the rod on the pillow block using a collar above the pillow block (butting against it)

    I'm sorry if the description is hard to understand but its also difficult to describe.

    drawing attached

    Attached Files:

  2. jcsd
  3. Aug 14, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Angular contact bearings (balls captured in deep races) can handle considerable axial load as well as radial load. A 150 pound axial load on an angular contact bearing with a 2" ID would be near the MINIMUM load you'd want on the bearing. Too little load and bearings can skid, wearing out faster.

    If you're mounting on a pipe however, you may need to consider how the clamp is going to be affected. Normally, these surfaces are fairly high tolerance, so the natural surface of a pipe wouldn't suffice.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook