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Recent content by GVMOGUL

  1. GVMOGUL

    Pulling oily strip

    Food for thought, siping and wipers/air knives. I hadn't thought of siping, and frankly I had to look it up to see what it meant.
  2. GVMOGUL

    Pulling oily strip

    Maybe someone has some experience with something like this. I have a mild steel strip, .50 inches wide, .10 thick, with a thin PTFE material bonded to one side. This strip is pulled through two - three tooth broach cutters that trim a few thousandths off each side to width. The pulling is...
  3. GVMOGUL

    small, high torque motor

    Yes, that configuration would provide the clearance. But the complications due to the length necessary would be about as bad as staying with a belt. I'm thinking that I should probably look a little bit at right angle gearheads, too. The ideal would be a longer motor, which might be hard...
  4. GVMOGUL

    small, high torque motor

    My electrical supply couldn't come up with anything on this one. I found a 24V DC brushless, 100-2500 RPM, 1/25 HP, 15:1 gearmotor from Oriental. The great thing about it is the 20 mm distance of the output shaft centerline to the edge of the gearmotor. I'm trying to do away with a belt...
  5. GVMOGUL

    extra precision ball bearings

    Well, it looks like Alpine Bearing may have some NHBB ABEC 7's. Yes, I am disappointed in my big-time nationwide distributor (who will remain nameless). It sure is nice to have a forum like this to go to where people know a thing or two.
  6. GVMOGUL

    extra precision ball bearings

    Thanks for the leads. I'll check them out. Angular contact, I think, will be too hard to set and maintain preload on with the design I'm dealing with.
  7. GVMOGUL

    extra precision ball bearings

    I am looking for a source for extra precision ABEC-3, extra light single row ball bearings, specifically the equivalent of Fafnir M9102K. These bearings are available in angular contact, but I cannot use those. Distributors and Timken (which acquired Fafnir) have told me the M type is no...
  8. GVMOGUL

    Polycarbonate cracking

    After talking to our maintenance guys, I learned that they do routinely use tapping fluid while drilling and tapping polycarbonate here. At that point, we couldn't wait to try the brake cleaner test. We did and it was a real eye opener. Armed with this knowledge, I think we will have fewer...
  9. GVMOGUL

    Polycarbonate cracking

    I'm seeing what everybody is saying here about contact with liquids, and we do subject our usually 1/4" PC guards to a lot of liquids once on the floor in service in production areas. They do fall apart then in some cases. But I still see the material cracking a lot during initial...
  10. GVMOGUL

    Polycarbonate cracking

    Back in the 1970's when I first encountered Lexan polycarbonate, we used a lot of 1/8", 1/4" and 3/8" sheet to make machine guarding and enclosures. It was trmendously expensive then, but as I recall, virtually indestructable. We drilled, tapped, sawed, bent, heated, you name it, and I can't...
  11. GVMOGUL

    Ball Bearings Sealed or open bearings 6313 C3

    I'm trying to think of what the downside would be of just leaving the seals. You say the load is light, but don't say what the RPM's are. A seal is made of rubbery material and because there is contact, they generate a little heat, more at higher RPM's. If you don't have a heat problem...
  12. GVMOGUL

    Cycle Counter Attached To Metal Forming Die

    I am looking for a cycle or hit counter to attach to forming dies. This counter would ideally be solid state, watch battery powered or maybe even unpowered, able to fit in a small space of a two inch cube or so, bulletproof, attachable with a couple of socket head screws and would count...
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