In a motor, a shaft passes through a magnet of a rotor and is fixed to the magnet by way of a rotor sleeve formed by resin-molding between the magnet and the shaft. After securing a chuck to the valve of an inflatable device by simply pulling a trigger similar to that of a pistol, the operator initiates the inflation and does not need to intervene further. The first RFID tag includes a temperature sensor. An optional time limit feature also may be used, and the transaction may be staged by the consumer, or others.