MOTOR, AND SHAFT SEAL MECHANISM

PROBLEM TO BE SOLVED: To provide a motor which allows for simple maintenance work, without requiring the repair work at the sliding portion of a spindle.SOLUTION: In a submersible motor 100, a rotor on the inside of a stator is rotated by electrification of a coil provided in a stator in the motor frame. A spindle 110 attached to the rotor projects to the outside of a motor frame while passing through a through hole 132 formed in a second bracket 130. A shaft seal mechanism 150 provided at the through hole 132 portion includes first/second oil seals 152, 154 for sealing the inside and outside of the motor frame, and oil seal spacers 160-1 through 160-5 arranged adjacently to the first/second oil seals 152, 154 along the spindle 110. Since the oil seal spacers 160-1 through 160-5 are provided, arrangement position of the first/second oil seals 152, 154 can be changed during maintenance.