Hello. I was checking my vintage drill press which I haven't identified yet, and discovered two missing ball bearings. The ball bearings are loose and do not fit inside a race. They sit inside a carrier just above the chuck. If I loosen the stop collar I can lift them out of the bottom carrier. I had the bearing measured with a Micrometer, which indicated it was 216.11 in millimeters, and 08.508 standard. Does anyone know where I might obtain a set this size? Thanks.
Missing Ball Bearings
- Thread starter Levaughn
- Start date
I took one of the bearings to my local auto parts store to inquire if they had some ball bearings and the owner used his micrometer to measure the bearing. The bearing is pretty small. I'm not too familiar with presses and am trying to learn the ropes, so I'm not sure if it's an industrial press. I attached a picture of it.
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454ragtop
Well-known member
Definitely not industrial, it's a homeowner type, might be an old Atlas or Craftsman. Your description of where the balls go, and the size of them, doesn't make sense to me. Pretty sure that drill isn't supposed to have loose ball bearings anywhere, but I could be wrong.
Jim
Oh yeah, almost forgot, your motor pulley is on upside down, or the spindle pulley is.
Jim
Oh yeah, almost forgot, your motor pulley is on upside down, or the spindle pulley is.
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OccupantRJ
Well-known member
Whoever read the micrometer needs lessons on resetting zero. Or just lessons.
Looks like the drill press is from late 1930's. Missing few parts and there are few replacement parts on it. Spindle pulley is upside down.
ok so there is no way that the diameter of the bearing is 8.5".
I think i see steel balls from the bearing in your picture. Now reading through your OP again, are you just looking for a steel balls and not the whole ball bearing?
ok so there is no way that the diameter of the bearing is 8.5".
I think i see steel balls from the bearing in your picture. Now reading through your OP again, are you just looking for a steel balls and not the whole ball bearing?
Even without the reset there is about 8" difference there, not that easy to miss. I can't even think about a course of action for this kind of person.
Levaughn, we're talking about the person at the auto parts store that measured the bearing for you.
Ok now we're getting somewhere, first you need to take it to someone that knows hot to use micrometer. Once you get the correct measurements you can go to http://www.mcmaster.com/#standard-steel-balls/=w54ajk and find the right steel balls.
454ragtop
Well-known member
Possibly a thrust bearing like this http://www.vxb.com/page/bearings/PROD/Metric-Thrust-Bearing/Kit7864 ?
Here you go, just pick your size http://www.mcmaster.com/#standard-thrust-bearings/=w557hg
I measured one of the ball bearings with a good ruler under a lighted magnifying glass and it come to an eighth of an inch. Would that make more sense than the previous measurement, and would that be the right size to order?
A friend measured the bearing with a digital micrometer and I was informed that it was not the correct measurement. I myself have no idea how to read a micrometer. I took a ruler and came up with an eighth of an inch. I'm new to drill presses and had this one lying around for about fifteen years, so since it's cold out, I decided to tinker with it.
APEowner
Well-known member
Without a more accurate measurement your just guessing. I'd start with buying a decent dial or digital caliper. You should own one anyway. Even the cheap ones are pretty decent and you'll get a better measurement than you will with a ruler.
RunninOnEmpty
Well-known member
http://www.ebay.com/itm/PARK-TOOLS-...163?pt=LH_DefaultDomain_0&hash=item2c8bb6ec93
This would be the easiest tool for this purpose, though you may only use it this one time so you may not want to buy it. For those too lazy to click the link, it's a ruler that has a ball bearing gauge built in which is just holes of various sizes. You find the smallest hole that the thing drops through and that's your size.
This would be the easiest tool for this purpose, though you may only use it this one time so you may not want to buy it. For those too lazy to click the link, it's a ruler that has a ball bearing gauge built in which is just holes of various sizes. You find the smallest hole that the thing drops through and that's your size.
454ragtop
Well-known member
I'd get a drill gauge myself, far more useful tool. http://www.ebay.com/itm/Kaufhof-AGD...045?pt=LH_DefaultDomain_0&hash=item5660c5724d
OccupantRJ
Well-known member
Makes mucho more sense. I keep a tin of bearing balls at work. Let me see what I have tomorrow if I can remember to do so. I cut open and save balls out of bearings to use in my tooling at work. Also, I see you are into bicycles. Don't they have bearings or balls about that size in use?
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