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  • Users: strokersix
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  1. strokersix

    bevel gear calculation question

    I have a straight bevel gear design, 13/45 tooth 2 module using Dudley's "Handbook of Practical Gear Design". Standard calculations are based on large end of the gear. I wish to produce approximate gears using the parallel depth method. I have altered the face width so the small end matches 1.5...
  2. strokersix

    Machine tools and automotive lubricants

    I know the safe bet is to use the lubricants recommended by the machine tool manufacturer. However, I've used motor oil for years in my milling machine and lathe. Lighter weight in the milling spindle and 50W racing oil most everywhere else. I've been told that using detergent oils in a...
  3. strokersix

    Ring electromagnet flux path

    First of all, I am a mechanical engineer with very limited electrical or magnetic knowledge so please forgive my basic question. I wish to build a ring electromagnet as part of a proof-of-concept prototype. The device I'm building is a clutch similar to an automotive AC compressor clutch. I...
  4. strokersix

    copy views to a second sheet?

    I have a two-sheet drawing where one sheet will be the raw casting and the other is machining dimensions. I've spent a fair amount of time developing datum targets and detailed views on one sheet. I would like to copy those views to the second sheet. Can this be done or do I need to do it over?
  5. strokersix

    interference analysis

    I apologize if this is a rookie question but here goes: I am familiar with model analysis checking clearances and interferences between components of an assembly. What I would like to do is assemble two very similar components and view the geometry that does not interfere. In other words...
  6. strokersix

    s-n curve 301 spring temper

    Can someone point me to a source for fatigue limit curves for 301 stainless strip? I'm working on a part .01 inch thick, .25 inch wide and about 1 inch long. It's a spring detent function. Loading is in one direction only, lifetime cycles only a few hundred, normal operating position...
  7. strokersix

    Flat Face Cam Follower Spin

    I understand that flat tappets have a slight spherical crown that mates with tapered cam lobes to induce spin and spread wear evenly. Question is: How much spin is typical? It seems to me that it really doesn't matter how much spin as long as it's greater than zero. Any thoughts or...
  8. strokersix

    Laser blanking .005" thick spring temper 301 stainless

    I'm designing some parts with this material that need to be blanked and formed. I expect in production the blanks will be stamped. For prototypes and perhaps initial production I was thinking laser would be a great way to produce blanks. Are there any metallurgical effects I should be...
  9. strokersix

    Passive vs active 304/316 SS

    I'm attempting to evaluate galvanic couples for a piece of machinery we manufacture and do not understand when to use the passive versus active condition for austenitic stainless. I think the active condition should be used for intimate contact with dissimilar metals in a moist environment. If...
  10. strokersix

    Planetary gearhead source? Advice?

    I'm working on a project where we need a gear reduction of 25-30:1. Input is a brushless DC motor with frame size similar (but not exactly) to NEMA 42. Motor rated shaft output is 3 lb-ft at 2800 RPM. Controller is designed to limit the motor shaft output to 14 lb-in peak and 7 lb-in...
  11. strokersix

    Cylinder block machining dimensions question

    First, I apologize for this not being an engineering question. Please don't red-flag me. I have been unable to find bluprint dimensions for big block Chevrolet Mark IV (454, 7.4L) engine machining. I need crank to cam distance, various bore sizes, cam follower bore positions, cylinder bore...
  12. strokersix

    Valeo HDFS hydraulic motor

    Can someone tell me what's inside this motor? It's a hydraulic engine cooling fan motor used on newer Chrysler products. I see some images online where the external motor casting shape looks a bit odd to me. I would like to know what type of motor is inside...
  13. strokersix

    Hydraulic turbine motor 5HP 5,000 RPM

    I'm considering alternatives for a gear motor driving a fan to improve durability. Production volume is perhaps 6,000 units anually. Power source is an agricultural tractor. I'm not intimately involved with this issue so I don't have all the details; nor do I know much about hydraulics (yet)...
  14. strokersix

    Roller Chain Sprocket Standard Latest Version?

    I'm having a difficult time deciphering what is the latest standard for single and double pitch roller chain sprocket geometry. I think ASME B29.100-2002 is the latest, correct? Thank you.
  15. strokersix

    Extension Spring Calculations

    Does anyone know of an extension spring calculator available online? I googled and found one that looked good but could not get it to work. I have a decent compression spring calculator but it seems extension spring calculators are more difficult to find. I'm interested in both overall spring...
  16. strokersix

    Period of oscillation of a ring on a cylinder in gravity field

    I'm having trouble calculating the oscillation period of a ring on a shaft. If I use the compound pendulum calculation it gives reasonable values if the shaft is very small compared to the ring inner diameter. Increasing the shaft size causes a shorter oscillation period experimentally...
  17. strokersix

    Roller Chain Cut-to-Length

    I'm looking for a piece of equipment to cut #40 roller chain to various lengths. To begin with, a manually operated device that would count links and press out pins would be helpful. Ultimate desire is a fully automated system that will spit out several different lengths in response to an...
  18. strokersix

    Shaft torque connnection - anaerobic, press, or both?

    I'm working with an application where a shaft extension with a socket is pressed onto a stub shaft and used to transmit torque. I know that relying on a press fit to transmit torque is not the best design but we've arrived at it for various reasons. The shaft diameter is nominally 5/8 inch and...
  19. strokersix

    Long/Short Conrod Discussion

    The technical content isn't particularly deep but I though this was interesting nonetheless: http://victorylibrary.com/mopar/rod-tech-c.htm
  20. strokersix

    Crankshaft material choice for durability

    I received some good general information regarding material internal damping chracteristics in the vibrations forum. I'm after some more specific information related to the actual application so I'm posing the question here as well. In 1963 and 1964 General Motors inline six 292 inch...

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