I am getting ready to replace the quill bearings in my HF Drill press. It's a 43389 Central 16 speed drill press. I was wondering if there are particular bearings that I could put back which would allow me to do some light milling work? Any thoughts/suggestions appreciated.
bearing replacement for drill press help needed
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Gary S
Well-known member
I'd first pull the old bearings and see what size they are and how much room you have in there. Then take the old bearing to a bearing shop and see if they have anything that will work. Guessing will make a lot more work for you.
Zeke
Well-known member
None of the DP was designed for side loads, not just the bearings. That having been said, you don't have too much to loose if you don't want accuracy down to .001. Be aware of the limitations. Keep the quill up as high as possible and be wary of the possibility of breakage and injury to your part or you. I think you can do light operations on many non ferrous materials.
Buy good bearings.
Buy good bearings.
The jacobs taper chuck mount won't take much in the way of side loads. Maybe some drum sanding but not heavy metal milling.
SMKS
Well-known member
I recently replaced some bearings and got a crash course in them.
They're pretty much all standard bearing sizes that can be ordered at your local bearing house or online.
Here's a thread that may offer you some assistance:
http://www.garagejournal.com/forum/showthread.php?t=141842
They're pretty much all standard bearing sizes that can be ordered at your local bearing house or online.
Here's a thread that may offer you some assistance:
http://www.garagejournal.com/forum/showthread.php?t=141842
Zeke
Well-known member
Good point. I've often wondered how to determine how the chuck is mounted on various DP's if one doesn't have the manual. I certainly would NOT want the chuck to come out while attempting to mill a part at high speed (aluminum).
As I tried to imply, use the right tool and machine for the job. But maybe the OP was going to mill some wood or plastic, I don't know. Just understand your machine and what it will do safely.
Bob-B
Well-known member
Drill chucks themselves are not designed for side loads. End mills should be held in either an end mill holder or a collet.
