Tag: bearing

News

DIY 3D Printing a Slew Bearing

2014-05-06 Dan

Printed this bearing to try and reduce number of parts and shave weight without breaking the bank.  Pretty good for a first try.  Right now I’m mostly getting ready for the Bay Area Maker Faire, then I’m going to put some bevelled gears in the wrist and move up to 5DOF.  There’s a lot of people asking for a 3D printer nozzle on this thing, so I’m going to get in the gear and see about making that happen over the summer.

Oh yeah, follow the link above to get the STL file and the Instructables link if you want to make your own.  Please tell your friends, skull, and comment.

 

read more: http://mc3dprinting.com/3d-printing-a-slew-bearing-saves-140/

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Miscellaneous

3D Printed Thrust Bearing

2012-04-04 Dan

http://www.thingiverse.com/derivative:25706

When two objects are moving together they can have two kinds of contact: sliding or rolling.

  • Sliding produces a lot of friction which leads to extra work, heat, wear, and damage. Sometimes this can be overcome by using two different types of materials: brass slides easily over steel, but steel doesn’t slide well over steel.
  • Rolling is smooth and (nearly) frictionless. Bearings are like wheels on a car: they turn as much sliding friction into rolling friction as possible. Did you know there are bearings inside most of your moving household appliances?

      What makes Thrust Bearings special

      Thrust bearings work like normal bearings except they can take more axial load. (force in the direction the center axis is pointing). Put two of them back to back and you get a Slew Ring, a bearing that can take a great deal of force every which way.