Simple roller bearing

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Earthquake-protective building buffer - exploded view, Video
Housing complex mounted on roller bearings [1].
Earthquake-protective building buffer, [2].

Simple roller bearing or Earthquake-protective building buffer [3] is a simplified version of a base isolation device called earthquake protector which is intended for protection of various building and non-building structures against potentially damaging lateral impacts of strong earthquakes.

The metallic bearing support shown on the right may be adapted, with certain precautions, as a seismic isolator to skyscrapers and buildings on soft ground. Recently, it has been employed for a housing complex (17 stories) in Tokyo, Japan.

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