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A laminated elastomeric bearing achieves horizontal flexibility together with vertical stiffness by

  • A.sliding on a lubricated stainless steel plate
  • B.rolling on hardened steel cylinders held in a machined track
  • C.interleaving thin rubber layers with steel shims
  • D.using a single thick block of very soft rubber

Answer: C

The steel shims restrain the rubber from bulging under vertical load, which makes the bearing stiff vertically, while the rubber remains free to shear horizontally. This combination of properties in one component is what makes the laminated bearing so widely used.

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