Patent attributes
An improved retaining structure for a rolling element comprises a plurality of separated pieces, two pairs of connecting ribbons, two pull-resisting ribbons, and a plurality of rolling elements. The separated pieces respectively have a plurality of contacting surfaces on the front and rear surfaces thereof. A partially wrapped containing space for receiving the rolling elements is defined between each two contacting surfaces. The two pairs of connecting ribbons are installed in pairs on two sides of the separated pieces. The two pull-resisting ribbons are installed on the two sides of the separated pieces respectively and connect with the two pairs of connecting ribbons. Thereby, the rolling elements are kept in a central position between the separated pieces in a partial wrapping manner to prevent the rolling elements from being improper clipped or from escaping when performing circumrotation motions. Furthermore, the uniform flexibility of the pull-resisting ribbons is increased.
