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Recent content by jameshow

  1. jameshow

    What effect does the angle of split have on a plain bearing?

    Mike, is it possible the angle cut is more suited to linear movement rather than rotary? I see bearings with horizontal splits (like these), and assumed the split was to allow for shaft or housing diameter tolerances.
  2. jameshow

    What effect does the angle of split have on a plain bearing?

    See the attached of a split bearing with a vertical split vs one with a 45 degree angle split. http://files.engineering.com/getfile.aspx?folder=caa1bf92-a776-4199-bb51-5a93c97be9ff&file=bearingsplit.jpg
  3. jameshow

    Bushing with grooves. Main purpose?

    Usually the grooves on a plain bearing are to facilitate the movement of lubrication across the bearing surface. I suppose in your case the grooves would hold extra adhesive as well. I doubt the grooves will add much holding power provided there is already enough space around the bushing for...
  4. jameshow

    What effect does the angle of split have on a plain bearing?

    Most split plain bearings it seems have a vertical cut parallel to the axis. I have also seen split plain bearings with a 45 degree or other angle cut. How does the angle of cut affect the performance of the bearing, if at all? I'm particularly interested in radially loaded bearings.
  5. jameshow

    Fastener traceability for PED

    For assemblies that use fasteners (in this example Hex Nuts) as main pressure bearing components according to PED, what's the general rule on traceability to the assembly and identification to the material certificate? All of my other components are marked, identifiable and traceable, but to do...
  6. jameshow

    Torque Testing bench

    We used to have a setup to test pneumatic actuators that involved a torque transducer, a bracket, a plate with holes in it, and a couple pins. That setup required the user to test at one location, remove pressure, remove the pin, rotate a few degrees, etc. We finally got tired of it and built...
  7. jameshow

    Docs for SIL Certification on Type A components

    I'm working on a documentation process to guide engineers through functional safety management IAW IEC 61508. We currently design and manufacture only Type A components (mostly final element components like valves, pneumatic actuators, etc). Parts of the standard such as software requirements...
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