I purchased a SEARS 10" table saw for use around my home. It is made of thin plastic but served adequately untill suddenly making horrible noises and throwing sparks out of the motor. I disassembled it and found the ball bearings24c9c on the end of the armature of the motor was frozen. I borrowed a friends saw which is the same model and used it for a few cuts when it ALSO had the same symptoms! It's disassembly showed the same overloaded bearing frozen! Neither had been subjected to any unusual treatment or conditions, obviously the... read full review »