Bearing installation in a floppy disk driver motor

A bearing installation in a floppy disk drive motor comprising:

• a protective cap mounted to one side of the motor;
• a first pivot bearing having a base provided with a recess mounting at least one ball, where one end of a rotary shaft mounting a ball is pivotally accepted by the at least one ball in the recess, said first pivot bearing being arranged for free and axial movements on the rotary shaft of the motor relative to the protective cap;
• a thrust spring urging the first pivot bearing axially of the rotary shaft of the motor;
• the rotary shaft fixedly mounted on a rotor of the motor, and supported pivotally at the one end by the first pivot bearing and at the other end by a second pivot bearing fixedly mounted to a platform on which the motor is installed;
• a lead screw to move a magnetic head threaded to an outwardly extending portion of the rotary shaft from the motor;
• a positioning bushing located between the two pivot bearings, arranged through which the rotary shaft extends without direct contact with the positioning bushing and closely fitted into a positioning hole provided in a plate to which the motor is secured;
• and
• a flange portion disposed around said base, said flange portion being directly supported by the thrust spring.