Tubular vibration damping device

A tubular vibration damping device, comprising an inner shaft member and an outer tubular member connected by a main rubber elastic body,

• the tubular vibration damping device further comprising a plurality of first identification protrusions protruding outward and a plurality of second identification protrusions protruding outward, wherein the plurality of first identification protrusions are formed apart in a circumferential direction on one axial end surface of the main rubber elastic body, and the plurality of second identification protrusions are formed apart in the circumferential direction on another axial end surface,
• the first identification protrusion and the second identification protrusion are arranged at positions differing from each other in the circumferential direction in an axial projection,
• a protruding height of the first identification protrusion from the one axial end surface and a protruding height of the second identification protrusion from the another axial end surface do not exceed an inner peripheral end and an outer peripheral end of the main rubber elastic body, and
• the first identification protrusion and the second identification protrusion have a comprehensive overall pattern in which weight balance is comprehensively maintained on a central axis of the main rubber elastic body,
• wherein the first identification protrusion and the second identification protrusion do not overlap with each other in the axial projection.