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ebay: Bodine 42A3BEPM-E3, 41 RPM High Torque Gear Motor 12V 23A Gearmotor

Discussion in 'Motor actuators and drivers' started by Pit, May 30, 2015.

  1. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    http://www.ebay.com/itm/Bodine-42A3...960?pt=LH_DefaultDomain_0&hash=item43dd3c3f68
    • 12V Permanent magnet motor, max 23A
    • Motor produces 1/4 HP, 310 inch-pounds of torque
    • Sealed and fanless with aluminum housing
    • Gearbox ratio 1:60 for shaft speed of 41 RPM
    • Fully reversible
    IMO worth a try...
    • Useful Useful x 2
    • Like Like x 1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    That works out to 35.02535 Nm, so just below what I have used on mine but with a slower rpm, as I have 54 rpm shaft speed. Shipping costs could be a killer out of the US.
  3. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    yeah not worth the cost for us EU guys ;)
  4. welen123

    welen123 Member Gold Contributor

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    which kind of gear box you chose ?
    it's so hard to find a appropriate gear box.
  5. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    scored 2 for 115.70usd free shipping ty for pointing them out.
    • Like Like x 1
  6. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    moved
    Last edited: Jun 12, 2015
  7. Alexey

    Alexey Well-Known Member

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    You would be better off having a single supply per motor. The specs might say that the motor is 23 amps max but with no datasheet for the motors it's not very helpful. Your motor will have a working current draw with no load attached and also a stall current. The stall current will determine what power supply you need as the stall current is the maximum current the motor will draw at the point where it can no longer turn the shaft under load. If your power supply can not supply enough current for the stall then the motor will go limp and possible damage may occur (either electrical or mechanical).

    Depending on your design and efficiency your motors may never actually have a stall situation if they have enough torque to begin with.

    In terms of power supply selection it would be wise to have as much amperage as you can afford as this will reduce the stress on the power supply during operation but on the flip side if something goes short circuit it will certainly make a mess of things. For my motors which are rated at 200W 16.6A, they actually have a stall current of 30A. I have used a current clamp on my rig and it's not uncommon for me to see the motors draw 30A for a split second, especially when I crash into the kitty litter. With better design on my part the motors might never see that 30 amps again as I moved the motors further back on the platform and gained more leverage (was in a bad place to begin with). My motors seem to draw between 15 - 25 amps during motion and around 1 - 4 amps at rest. My design is compact and therefore not as efficient as a shoulder mount seat which is why I see high current draw.

    So here is another question, what motion platform design have you chosen? If it is a shoulder mount you might get away with one supply as they seem to be the least stressful on the motors. If it is a compact design then you might need two as the motors won't have the same leverage as a shoulder mount. Another factor will also be how long you leaver arm length is as this will ultimately decide the available torque from the motor.
    • Agree Agree x 2
    • Like Like x 1
    • Informative Informative x 1
  8. tailele

    tailele Member

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    it is a good motor, but is it the gearbox with worm?
  9. MagicEdge

    MagicEdge Active Member Gold Contributor

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    • Informative Informative x 1
    Last edited: Sep 5, 2015
  10. Blame73

    Blame73 Well-Known Member

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    Hey @bruce stephen did you get the motors? what can you say about them?
    they're 23% (reconditioned) off now and I was going to buy 2 too
  11. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    • Like Like x 1
  12. MagicEdge

    MagicEdge Active Member Gold Contributor

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    Took the plunge and purchased 20 of the Bodine gearmotors and Cosel 50A power supply. Crossing my fingers they will perform as espected.;)
  13. Blame73

    Blame73 Well-Known Member

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    Is it worth switching to these motors (35Nm/41RPM) from wiper motors (about 25Nm/40RPM if I'm not mistaken)?
  14. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    20 wow
    • Agree Agree x 1
  15. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    What the hell are you doing? Did you draw a prize in a lottery? :)
    money.jpg
    Obviously a misspelling...lol
    • Funny Funny x 2
  16. Blame73

    Blame73 Well-Known Member

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    Nevermind, they answerd me that I have to pay delivery costs for each motor. It's not worth buying them from Europe
  17. MagicEdge

    MagicEdge Active Member Gold Contributor

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    Aviation is my money maker. spend it as much as sacrifice giving to my job. Lots of travel and sweat!:thumbs Going to build 3 6 DOF sims.
  18. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    you go with your bad self....

    i am in suspense
    • Agree Agree x 1
  19. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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  20. SeatTime

    SeatTime Well-Known Member

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    Wish I had half your optimism :)- Good luck.
    • Agree Agree x 1