A seal assembly for a surgical access assembly includes a housing defining a center, first and second ring members, an inner seal member, and first and second centering mechanisms. The first ring member is disposed within the housing and includes the inner seal member coupled thereto and extending radially inwardly therefrom. The second ring member is disposed within the housing annularly about the first ring member. The inner seal member is configured to sealingly receive a surgical instrument inserted through the housing. The first centering mechanism is configured to bias the first ring member towards a concentric orientation relative to the second ring member. The second centering mechanism is concentrically disposed about the first centering mechanism and is configured to bias the second ring member towards a concentric orientation relative to the center of the housing.
