Product review (5 stars): ... was squeaking and the noise was getting louder and worse over time
My dryer was squeaking and the noise was getting louder and worse over time.  This kit had everything I needed to make the dryer work like new again.  The kit included a new ball bearing, grease, etc.  It turned out to be critical having the new belt too, because the old belt was fraying.  I can highly recommend this kit.  Parts are high quality.  I do recommend looking for a good set of online video instructions to go with it.  That turned out to be a huge help.  Total time for the belt and bearing replacement was roughly an hour.