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Can you recheck that model number? Is this a front load or a top load of figuring it's top load from what you're saying if so open the lid and look straight back in the middle this should be a tag with the full model number on it will start with a 110, 106, 665 or some other three digit combination, thanks, Bryan
Okay the DE512 is an older machine sure, these are the wheels for it or what's called the drum supports, the really cool thing about these is the side I'm giving you has a video that shows you how to change them so that's great plus a get you into the machine where you need to check a few things to find out what's going on with the heat, here is the link to that http://www.repairclinic.com/PartDetail/Drum-Roller/12001541/400518?modelNumber=DE512 well you have it apart here is a nub the link to show you how to check the heating element,
http://www.repairclinic.com/PartDetail/Heating-Element-Assembly/Y303404/1245862?modelNumber=DE512 between these two videos you should be able to find your problem I believe your heating element is probably bad let me know when you find out, or if those out the problems all I know the wheel is probably the problem but you might want to check the Pulley also the belt pulley just to make sure that's not squeaking, since this is a whole new question it's up to you whether you want to give me a bonus are not for not helping, that's entirely up to you, but let me know how that works out for you, thanks, Bryan
Okay I did give you a link that actually has a video to show you how to take the machine apart to get to these and replace them I've given you that link above I will go to you again, here is the link all you have to do is click on this blue link.
the video actually shows you exactly how to take the machine apart step-by-step all the way to the wheels and how to replace them. With all the information I gave you may have missed it but that video will show you everything. I hope that helps, thanks, Bryan
Brian please foward info on how to replace belt on dryer