I was throwing an old microwave out and decided it was worth checking the turntable motor in the light of previous posts.
To all intent the two motors appeared identical on my B.S and the microwave, both Hengxing model number TYJ50 8A7, 240 volt, 50 Hz, 4 watt. Great thinks me, ideal to keep as a spare for the future.
Then I noticed the B.S motor was labelled 5 r/min whilst the microwave motor was labelled 4 r/min ..... r/min meaning revolutions per minute I would imagine.
Presumably the B.S moves the pucks by running this motor for a given length of time to take account of the distance required to move the pucks.
Therefore if one motor runs at 4 revs per minute and one at 5 revs per minute over the same time span the pucks are going to get more and more out of step to where they should be as time progresses if I used the old microwave motor in the event of the one on my B.S failing.
At some stage they are not even going to make the hot plate!
Either that or the company Q.C each batch of motors they produce and the value printed is a nominal value. e.g one batch does 4.4 r/min and they round that down to 4 and the next batch does 4.6 r/min and they round it up to 5 and the actual difference is negligable.
Anyone got any thoughts on the matter, which scenario is likely to be the correct one? [

][

]
Or is my logic at fault completely!! [:I][

]
It would just be useful to have a spare motor available in the event it fails when the warranty has expired.[8D][8D]
Manxman.