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Recent content by dtimberlake

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    Balancing large 8600hp electric motor with fluid film bearings

    So the vibration sensors are mounted to the bearing housings ? Is there just one sensor on each bearing housing? Sounds like they are hard mounted and not readily re-positioned for vertical or horizontal. Are the vibration measurements filtered 1X rotational, or "unfiltered" ?
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    Parallel horizontal shims that slide frictionless on vertical rods

    Among the many other hitherto unidentified details things the holes in the shims are going to need some careful detailing lest their square edges become locking devices. https://m.media-amazon.com/images/I/71anrnKKStL._AC_SX522_.jpg...
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    Lincoln DC1000 machine

    Maybe has an NL Option kit ? whatever that is ? CONNECTION OF DC-1000 WITH NL OPTION KIT TO LAF-3 (Obsolete) from page 20 on the Operator's manual here - https://files-us-prod.cms.commerce.dynamics.com/cms/api/tflzsjpjnb/binary/MA2z4B
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    REAR MAIN SEAL LIPS

    " the seal was cut at an angle making a "thread" like feature that helps work the oil through the sealing lip and spitting it back into the bellhousing " What direction does the crankshaft rotate relative to the seal "thread" ? Is country of origin molded on the seal? Does that match what the...
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    Left vs right thread

    I think fuel gas fittings are often LH thread.
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    PTC Renewals

    This company moved to Inventor after decades with PTC. There were also issues with the updated Windchill file management that required huge server upgrade. Maintaining a handful of PTC licenses to support access to two oceans of legacy models and drawings. that now have been migrated to a giant...
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    Movable-shaft design for adjustable gear teeth engagement

    https://www.e46fanatics.com/threads/steering-backlash-adjustment.726710/
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    identifying and using AP242 STEP files

    We still sell some of our parts that have been in production for over 50 years. We have patterns for many of them, made back in the day when there were still foundries in Massachusetts and the sales volumes were much higher. We provide finished part drawings, not pattern drawings. When a...
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    identifying and using AP242 STEP files

    A supplier sent us a STEP file of a model they created from our drawings for a fairly simple cast part. The STEP file was Exported from Solidworks 2024 I believe, although that may not be too important. I inquired if the STEP file was AP242 . No reply yet. They also sent an approval form that...
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    tig welding tubing, fitting face perpendicular to tubing

    Once upon a time we were asked to reface some used floating clutch disks from some vintage Ferrari. Maybe .2" thick or maybe less. They were worn, and sort-of flat. Each time .005" or so was gently wet ground off one face, the disk would distort to a new shape, so we stopped. The owner took the...
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    Tips on cold emails?

    Usually I delete cold e-mails and then block the sender. Once in a while I don't.
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    Determining the Fracture Mode: Brittle Fracture vs. Fatigue in a Pump Shaft

    May I have some pictures of the remainder of the shaft and the machine or device that "broke" it? Also some details about the service history. Would this happen to be a belt driven device ?
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    Need help in design of purified water generation system

    Dang. I was thinking when you said API you meant these folks - https://www.api.org/ I really was.
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    Journal Bearings, Lead, and the ethics thereof

    If the bronze bearing ever experience less than EXCELLENT full film lubrication you may find that a leaded bronze offers huge benefits.
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    Lower Ball Joint in Tension

    Several years ago My older daughter's 1996 Honda Accord had a lower ball joint break/unseat while slowly navigating her residential neighborhood. That car had passed Massachusetts' annual RMV inspection about a month before. It was the OEM joint with over100 kmiles. Replacing front brake...

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