Bearing unit and motor

A bearing unit that supports a rotating shaft, the bearing unit comprising:

• a frame including a tubular body;
• a bearing disposed in the frame;
• and
• a pressing spring that is disposed in the frame and presses the bearing, the pressing spring including a positioning part that comes into contact with an inner surface of the tubular body to determine a position of the pressing spring, wherein:
• the positioning part comprises one or more protrusions protruding toward the inner surface of the tubular body,
• each of the one or more protrusions includes a first plate part protruding toward the inner surface of the tubular body and a second plate part extending along the inner surface of the tubular body from a distal end of the first plate part, the second plate part being opposed to the inner surface of the tubular body,
• a groove, into which the second plate part is fitted, is provided on the inner surface of the tubular body,
• the groove comprises an opening into which the second plate part is inserted, and a pair of side walls facing each other across the opening, and
• the pair of side walls face the second plate part and restrict rotation of the second plate part in a rotational direction of the rotating shaft.