with an outer diameter of 19mm. The 19mm outer diameter seal was cut down to 17mm by the manufacturer of the pan

to make it fit into the 17mm diameter hole of the pan. This action reduced the outer layer (mil) of the seal leaving it

vulnerable to failure by weakening the seal's ability to maintain a sealed environment for the bearing assembly.

Some of the seals will not stay in the pan's recessed hole. The seal will make it's way out during the mixing or kneading

phase. Even after firmly pressing the seal back into place it will still eventually work its way back out again.

The second problem with the cut down seal is that it may be cut crooked when reducing the diameter. This will result in failure to maintain

a sealed environment as well as becoming stuck within the pan's recessed hole. This creates a third problem. When a seal

is stuck within the pan's recessed hole it makes it very difficult to remove. At least  50% of seals cut crooked that are stuck

in the pan's recessed hole will not come out without damaging the pan's recessed hole. If the hole is damaged while

removing the seal from the pan it cannot be repaired. The pan will never seal again. ***If the seal is making its way out

on its own during the mixing or kneading phase, then you will be able to easily install a new seal. ***If you have to remove

the old seal by tapping the drive shaft through to push it out and the seal easily pushes through with minimal force

applied, then you will be able to easily install a new seal.***If the shaft has already fallen out the bottom, then you will need to pry out the old seal using an old double ended can opener / bottle opener. Place a credit card in the bottom of the pan to prevent scratching when using the can opener to pry out the old seal. Place the pointed end of the opener into the center hole of the seal and gently pry upward moving from side to side until the seal pops out. Please not that the seal has an inner steel frame. If all you have removed so far is a thin piece of rubber, then you will need to remove the rest of the seal known as the inner frame. It is important that you be very careful when removing the old seal. If the hole the seal is in becomes swelled, warped, or chipped then the new seal may not seat successfully. ***I strongly recommend removing the old seal before purchasing a new seal so that you can determine if the pan is in fact repairable.***My new seals are manufactured with an outer diameter of 17mm. Never cut down or reduced to fit! This solves the problem with the old red seal!