TEAC A3440S Main internal mounting plate
These are not normall needed as a spare though I make it a rule to keep one just in case
for each machine I dont need, you never know
This is a very solid aluminium plate on which is mounted all the mtors and parts etc, it has to be very flat
And is one of the reasons why the machines were very expensive, if your machine has suffered a serious fall this may get you running again.