Please help/advise me fix washing machine.

A few months ago I got my washing machine fixed. The problem was that the drum wasn't spinning round although the machine was going through full cycle (filling up with water, and emptying out with water at appropriate times).
The repair man took out and replaced two small black blocks each about one inch long and 1/2 " wide approx. I don't know what these are or what they are called. He too them out form a large component in the machine that is cylinder shaped approx 5" diameter and 6" long.
I'm sure these are quite easy to replace as it only took him about a minute.
Can someone tell me what these two blocks are please and how I should replace them?
The washing machine is a Hotpoint 95452
Thanks.
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There should be a service booklet taped inside your washing machine. Get it out and see if there is anything about the blocks.
How would you compare the old one from the new one? Is the old one all worn out or something?
My guess is that you don't have to know what it is. Just take the old one to the service and ask for the same one... whatever it is... ;)

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Sometime ago our Whirlpool washing machine had similar symptoms. The problem was that the coupling between the machine's motor and the "transmission" was broken. The coupling consisted of three pieces, about the size you describe. Take a look at the following site and you will be able to decide if that is what your problem is:
http://www.appliance411.com/links/jump.cgi?IDR4
If that is your problem, it is reasonably easy to fix it; the main difficulty is getting to the pieces. Good luck.
--NS
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The blocks are not the problem. If they were replaced just a few months ago and are already broken, find the cause and fix that also. Until you find out why the blocks break, you will have to do this on a regular basis, probably with shorter intervals. Treat the cause, not the symptom.
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Edwin Pawlowski wrote:

If the brushes are in fact kaput again, then it's time for a new motor, as something is very wrong here. These should last the life of the washer.
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