Movable Arm  3                                                7-2025
 


 

Working With Metal Continued

 

Here is bearing housing with the inside diameter finished and ready to accept the bearings.
 

 

 

I'm putting in four threaded holes for some 5/16-18 bolts (coarse thread). This will hold the bearing housing to the floor. 
 

 

 

Here is what it looks like and the next step is to press in the bearings. Speaking of bearings, I put the bearings in the freezer overnight to make them easier to install because it shrinks them by a small amount. Now if I hit my dimensions correctly, those bearings will be easy to install.
 

 

 

I used my milling machine to help with the installation, which worked out great.
 

 

 

I used a 1 X 2 X 3 block to help keep things square and they both went in perfectly.
 

 

 

These bearings are way overkill for what I'm doing here (very large and heavy duty), but I had them sitting around so I thought I use them.
 

 

 

Here I'm putting in the bolt holes for the adapter. Those holes are slightly over 1/4" and the same will be put into the adapter.
 

 

 

Here is the shaft pressed into the bearing housing and everything went together great. Note the flat on the right side. I machined that for the pulley screw.
 

 

 

The left side will stick up through the floor and the four bolt holes will mount to the plywood.
 

 

 

Here is the adapter all ready to bolt-up to the bearing shaft.
 

 

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