1/2" hex bearing inner races

FIRST General Forum
1

Pictures comparing thicker inner race vs. what we used last year. The Average Joes will be glad to have more durable 1/2" hex bearings henceforward.

Thank you, VEXPro and AndyMark! :slight_smile:

hex bearing comparison.pdf (170 KB)


hex bearing comparison.pdf (170 KB)

2

Thanks Richard.

So, it looks like the old Hex Bearings were really just round bearings that had material removed (broached) to make them Hex. No wonder they failed under load!

3

What do you mean “Old, Pre 2012?” Did the pre-2012 bearings have a larger race which was later reduced in size for cost reasons?

4

I think so – Andy, Paul, or other knowledgeable people at AM and/or VP can confirm. My evidence is some 1/2" hex bearings that I purchased late 2011 or early 2012 from one of those suppliers, which have thick inner races as indicated in the pictures.

5

The broach looks like a cleaner job too.

6

It’s a larger chamfer you’re seeing.

7

Sorry, I should have been more specific - I was referring to the interior walls. The “old” looked rough where as the new looks a lot smoother.

8