Abstract: A brushless D.C. motor comprises a casing, a bearing, a stator, and a rotor having a shaft. The bearing is mounted to an end of the shaft. A first magnetic member is mounted on an inner side of the casing. A second magnetic member is formed on the other end of the shaft and faces and is spaced from the first magnetic member. The shaft floats on an axis by magnetic force provided by the first and second magnetic members to thereby reduce the load to the bearing. Thus, the frictional resistance is low, and rotation of the motor is smooth with a low noise. The motor is shock-resistant and has a long life. Thus, the motor is particularly suitable for portable electronic products.

Abstract: A brushless D.C. motor comprises a casing, a bearing, a stator, and a rotor having a shaft. The bearing is mounted to an end of the shaft. A first magnetic member is mounted on an inner side of the casing. A second magnetic member is formed on the other end of the shaft and faces and is spaced from the first magnetic member. The shaft floats on an axis by magnetic force provided by the first and second magnetic members to thereby reduce the load to the bearing. Thus, the frictional resistance is low, and rotation of the motor is smooth with a low noise. The motor is shock-resistant and has a long life. Thus, the motor is particularly suitable for portable electronic products.