Thread: NEMA Standards

  1. #1
    Can anyone tell me what the nema 23 nema 34 and so on is meant to signify, i nkow what they are refering to but for instance are they like shoe sizes or are they like spanner sizes..

    Rick
    Always bear in mind that your own resolution to succeed is more important than any other - Abe Lincoln

  2. #2
    I believe it's the face width of the face.....i.e. 2.3" x 2.3" for a NEMA 23....1.7" x 1.7" fro a NEMA 17 etc. etc.
    Neil...

    Build log...here

  3. #3
    As nj said...
    Also this explains why sometimes the larger, e.g. 3Nm and 4Nm, 'Nema 23' stepper motors are called Nema 24. It's because their body is 60mm wide which is closer to 2.4" than 2.3", which is why it's always best to check the drawing if you have one.
    Old router build log here. New router build log here. Lathe build log here.
    Electric motorbike project here.

  4. #4
    Quote Originally Posted by Jonathan View Post
    As nj said...
    Also this explains why sometimes the larger, e.g. 3Nm and 4Nm, 'Nema 23' stepper motors are called Nema 24. It's because their body is 60mm wide which is closer to 2.4" than 2.3", which is why it's always best to check the drawing if you have one.
    Ahh Ok that explains a lot thank you for clarifying that..

    Rick
    Always bear in mind that your own resolution to succeed is more important than any other - Abe Lincoln

  5. #5
    Yea its the frame size, maybe a chart would be handy ?
    .Me

  6. #6
    Quote Originally Posted by Jonathan View Post
    Also this explains why sometimes the larger, e.g. 3Nm and 4Nm, 'Nema 23' stepper motors are called Nema 24. It's because their body is 60mm wide which is closer to 2.4" than 2.3", which is why it's always best to check the drawing if you have one.
    Quote Originally Posted by Ricardoco View Post
    Ahh Ok that explains a lot thank you for clarifying that.
    Zigactly.... thanks for that clarity!

  7. #7
    Quote Originally Posted by Lee Roberts View Post
    Yea its the frame size, maybe a chart would be handy ?
    Well to be fair i thought i was the only stupid one when i read the replies, so if im not the only stupid one then a chart would be great.

    Rick
    Always bear in mind that your own resolution to succeed is more important than any other - Abe Lincoln

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