thanks for the responses after having changed the motor the problem has not reoccurred in the past few weeks the theory of misalignment is weakest i think the reducer is new as was the original motor and there is no slop in the fit at the quill.... it would also seem...
thank you everyone for your repsonses the motor in question does retain the rotor lock when removed from the gear reducer there is no apparent play in the reducer quill after removal since it is installed in a fruit store in nyc it is difficult to monitor use and all...
pablo
thanks for responding the motor in question is a c face mount, tefc the shaft when examined shows no remarkable damage and its' removal from the reducer quill is easy ... there is no smell of burnt insulation and yes the failures occurred on the same conveyor...
i have had two failures with single phase capacitor start motors connected to a conveyor. the motor is wired 22o volt through a drum reversing switch. in both failures the rotor was locked when the motor was disconnected from the gear reducer. the reducer and drive chain spin free...
