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Recent content by dougouk

  1. dougouk

    Torque-Limiter Safety Pin

    Do you have the source? Can you kindly tell me the units of Shear strength (is it MPa?) By breaking in two places at once, is that always the case? Wouldn't one side break first, and the other side usually stays? Even if so, should I still use the "2" in the equation?
  2. dougouk

    Seals for Bearing

    EDIT: Contacted McMaster-Carr about double-sealed bearings, not double-lip seals. Should have previewed before submitting post.
  3. dougouk

    Seals for Bearing

    Thank you Mike, compositepro, geesamand, JJPellin and Tmoose all for the answers. As for the duration of a test, it's currently undecided, but there are no plans to have it go on for extended periods of time. A rough estimate would be 5 minutes for each test. After a test, the liquid will be...
  4. dougouk

    Seals for Bearing

    Hey guys, I'm looking for some bearings that would work as a seal... or if you guys know any workarounds, please let me know. Here's what I have so far: I have a rectangular tank (2.3L max, low pressure). This will be filled up with liquid such as water and oil. I have a rotating shaft that...
  5. dougouk

    Bluetooth Low Energy Communication Utilities

    Hey guys, I need some advise on what I should be looking at for bluetooth LE. What I want: I have my own sensors (for a variety of things), and I need an interface that will basically receive the data, transmit it through a wireless bluetooth LE singal, so that I can receive it on my...
  6. dougouk

    Torque limiter

    Hello all, What I need: I need a shearing pin that will break/shear at 1650 in-lbs. Can anyone give me a lead? I find many shear pins online, but they don't tell me the force required to shear them. Why I need these: I have two shafts, one will experience friction (torque) and the other one...
  7. dougouk

    Torque-Limiter Safety Pin

    Hi all, not quite sure which sub-category I should post this to, I need help/tips on looking for a glass pin that will break when it reaches a certain torque. So what I have in my design is, two shafts that are connected by a coupler, and the coupler has a glass pin through it, which...
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