Consistent thumping noise when drying clothes. Could this be the drum?

Yes, very fixable.

Worn rear bearing.
Worn drum slides which are at the front of the drum and made of oiled felt.

When you are drying clothes the drum is moving up and then thumping down. Open the door, can you move the drum up and down?

Hi dave hemming.
I do not believe it is a bearing that is causing your thumping noise
*****************************************************************************
No...you do not need a new drum...all you need is new drum rollers
You probably have a flat spot on one of the rollers, it will make the thumping sound when the drum rotates.
Go to the following webpage and get your drum rollers and install them and that should take care of the noise you are hearing
Please take time to rate me
Bud
http://www.appliancepartspros.com/index.aspx

change your belt or replace the spring that tensions the belt

The belt tensioner roller has a flat spot caused by a worn bearing that catches and stops whilet the drum is turning. This causes the flat spot and the noise its making. You can purchase a new roller by itself and do change the belt the same time too

It always helps if you list the brand and model number in your post. I would look at the seam on the drum to see if the weld has cracked. (right at the front and / or rear of the seam.)

Hi,

There are several things that can cause a dryer to be noisy. There are a lot of moving parts in a dryer that can cause noises to occur when they get worn. Several parts support the drum, and may make noise or vibrations when worn out. Many times a dryer will squeak just a little bit as it first starts. This should go away in just a few seconds. Make sure nothing is loose inside the drum. Remove the lint trap and look below the lint trap holder for any loose items that may have slipped through the cracks. The blower wheel is always moving and lint is constantly going by it. If it’s noisy, it may have gotten clogged with lint, or it may be worn and need to be replaced. Clean out the area around the blower. If it’s still noisy, replace it.
Many dryers use a center spindle to support the clothes drum. This spindle may be a ball-and-socket support, or it may be a shaft inside a sleeve. When these component bearings get worn out, they may make a squealing or rubbing sound. Replace this bearing when it gets worn out. Many dryers also use plastic glides in the front end of the clothes drum. When these glides are worn out, you may hear a lot of noise. If the glides are worn, replace them as a set.
Some dryers use rollers to support the clothes drum. If these rollers or wheels are worn out, they can be extremely noisy. You ought to replace the whole set at the same time. A belt that has been damaged or frayed may make a thumping or slapping sound as the drum turns.
The gas valve solenoid will make a buzz type of sound as it opens. The valve itself will give a little click as it starts the heat cycle, when ignition begins, and when the burner is turning off. The burner flame itself makes kind of a low-pitched roaring wind sound.

Thanks for using Fixya.

UNEVEN LOAD

Take off the back panel of the dryer and look at the motor and belt turning the drum. There may be something caught on the drum and is pinned in place causing the noise. The motor could be loose on the platform and needs to be tightened. It is probably something physical and seen causing the noise.

A new drum and rollers should have solved this issue. The rollers were upgraded to have a harder rubber consistency about 1 year ago. Ensure that the technician did not use old stock parts. The new, updated rollers should have a blue dot on them. As for a cracked drum weld, this would be a defective part. Make sure to call LG customer service to have the issue documented so that there will be a history. This way, even when your unit goes out of warranty they will have records of the service and the repairs should still be covered for sometime.

sounds like one of your tumbler veins inside the drum is loose. there should be two or three screws holding them in