Shock and vibration isolating caster

A shock and vibration isolating caster, comprising:

• at least two floor engagement wheels, said wheels being spaced apart along a wheel axis;
• a wheel support for each said wheel, said wheel supports being disposed inboard of said wheels along said wheel axis;
• an axle extending through said wheel supports, coaxial with said wheel axis and mounting said wheels to said wheel supports to rotate about said wheel axis;
• an elastomeric torsion element for each said wheel support, each said element being disposed inboard of said wheels along said wheel axis and each said element being bonded on a side thereof to a corresponding wheel support with a clearance between each said element and said axle so as to allow rotation of said axle about a bearing axis which is parallel to said wheel axis;
• a bearing support inboard of said wheels along said wheel axis and bonded to said torsion elements on sides of said elements opposite from said wheel supports;
• a pivot bearing coaxial with said bearing axis, said pivot bearing extending through said wheel supports, said torsion elements and said bearing support, said pivot bearing allowing rotation of said wheel supports relative to said bearing support about said bearing axis;
• and
• means for mounting said bearing support to a structure to be supported by said caster;
• wherein said elastomeric torsion elements flex in torsion to allow rotation of said axle about said bearing axis.