Can someone give me the sprocket designation for this timming belt?
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  1. #1
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    Default Can someone give me the sprocket designation for this timming belt?

    I'm retrofitting a bed mill and need new drive sprockets for the servos. I ordered some sprocket stock from a shop, but it came in with the wrong tooth form. So... what 28 tooth sprocket form do I need to fit a Bondo STS S8M belt?
    Thanks in advance
    i_r_
    capture.jpg

  2. #2
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    Quote Originally Posted by i_r_machinist View Post
    I'm retrofitting a bed mill and need new drive sprockets for the servos. I ordered some sprocket stock from a shop, but it came in with the wrong tooth form. So... what 28 tooth sprocket form do I need to fit a Bondo STS S8M belt?
    Thanks in advance
    i_r_
    capture.jpg
    If somebody doesn't have the specs why not send the belt to the vendor of sprocket stock to match up?

  3. #3
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    I had wrongly ASSUMED that if I gave a shop that specializes in sprocket cutting a picture of the belt markings, they would be able to give me the correct pulley. If all else fails, I will, but maybe AutomationGuru will chime in.
    Thanks
    i_r_

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    Quote Originally Posted by i_r_machinist View Post
    I'm retrofitting a bed mill and need new drive sprockets for the servos. I ordered some sprocket stock from a shop, but it came in with the wrong tooth form. So... what 28 tooth sprocket form do I need to fit a Bondo STS S8M belt?
    Thanks in advance
    i_r_
    capture.jpg
    Drawing/Specifications | Keyless High Torque Timing Pulley - S8M Type, ST/SH Keyless Pulley | MISUMI | MISUMI USA

    even has cad files for download.

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  6. #5
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    Quote Originally Posted by i_r_machinist View Post
    I had wrongly ASSUMED that if I gave a shop that specializes in sprocket cutting a picture of the belt markings, they would be able to give me the correct pulley. If all else fails, I will, but maybe AutomationGuru will chime in.
    Thanks
    i_r_
    I am not surprised at any level of incompetence any more. A couple months ago I got back to back fouled up orders from McMaster Carr, when I had none in the previous 25 years. Somebody shipped .368 ground O-1 instead of .386. On the replacement order they shipped bent stock.


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