Rolling guide apparatus

A rolling guide apparatus having a first member, a second member, and a rolling body unit being disposed between the first member and the second member, the second member being movable along the first member upon rolling of the rolling body unit, the apparatus comprising:

• a rolling body unit guide path being configured to include:
• a rolling path being configured to have a rolling groove formed in the first member, and a rolling groove formed in the second member in a face-to-face relationship with the rolling groove of the first member;
• and
• a circulation path being provided in the second member and allowing communication between a start point and an end point of the rolling path,
• the rolling body unit being configured to include a plurality of first rolling bodies each configured to receive an external load, and a plurality of second rolling bodies each composed of an elastic material,
• each first rolling body and second rolling body having a spherical shape and an outer surface,
• the second rolling body having, on the outer surface thereof, a deforming unit configured to elastically deform upon contact with the first rolling body,
• the deforming unit including at least one integral streak provided so as to protrude from the outer surface of the second rolling body,
• a distance between a first tip of the protruded streak and a second tip of the protruded streak that is opposite to the first tip with respect to a center of the second rolling body being smaller than a diameter of the first rolling body, and
• at least one second rolling body being always positioned in the circulation path.