Bananaman Report post Posted August 2, 2020 No experience with Servo motors but it does not sounds good :-) . It is brand new one, just installed and on low speed is making some grinding noises which will increase with load. On speeds over 700rpm noise will almost disappear. Is this normal? Another thing , min speed is 400rpm and is changing in 100rpm incremments or so, no smooth change, it is 400 or 500. Nothing in between. Not sure is this normal or not. Cheers Quote Share this post Link to post Share on other sites
dikman Report post Posted August 2, 2020 A lot of the generic servos tend to have that characteristic low speed "issue". That's one reason for fitting a small pulley on the motor and a speed reducer. As for the noise, does it make it with the sewing machine belt removed? Quote Share this post Link to post Share on other sites
Bananaman Report post Posted August 2, 2020 1 hour ago, dikman said: A lot of the generic servos tend to have that characteristic low speed "issue". That's one reason for fitting a small pulley on the motor and a speed reducer. As for the noise, does it make it with the sewing machine belt removed? No, it does not make noise with belt removed. cheers Quote Share this post Link to post Share on other sites
dikman Report post Posted August 2, 2020 Hmm, was the sewing machine working ok before (I assume it had a different motor fitted)? Quote Share this post Link to post Share on other sites
Gregg From Keystone Sewing Report post Posted August 4, 2020 Sounds like excessive belt tension. Quote Share this post Link to post Share on other sites
Bananaman Report post Posted August 9, 2020 On 8/2/2020 at 1:45 PM, dikman said: Hmm, was the sewing machine working ok before (I assume it had a different motor fitted)? Yes, no problems with clutch motor. Nice and easy turns with hand Quote Share this post Link to post Share on other sites
Bananaman Report post Posted August 9, 2020 On 8/4/2020 at 9:15 PM, Gregg From Keystone Sewing said: Sounds like excessive belt tension. Exactley , only there is no excessive belt tension. Belt was set up on “ just grubbing” tension. I did try it with belt off the machine, holding with my hand and as soon as I put bit of pressure noise will start. I could live with bit of noise , but, in my experience, motors with “ grinding noises” do not last long unless it is “normal” . cheers Quote Share this post Link to post Share on other sites
dikman Report post Posted August 9, 2020 Hmm, none of my servos make much noise. Is it the same whether it's run flat out or very slow? Quote Share this post Link to post Share on other sites
RyanFromHolland Report post Posted July 3, 2021 I wondered If you were able to solve it? Because I have the exact same sound! Just installed, new out of the box!I have no comparison nor experience with these motors,, but this sound is worrying me too. Did you found a solution/anwser? Quote Share this post Link to post Share on other sites
