(57) A scroll compressor comprises a stationary scroll 122 fixed to a casing 121, a stator
123 fixed to the casing 121, bearing supports 126 and 127 fixed to the casing 121,
a rotary shaft 125 rotatably supported by the bearing supports 126 and 127 through
bearings 128 and 129, a rotor 124 fixed to the rotary shaft 125, a hollow orbiting
shaft 130 eccentrically and rotatably supported by the rotary shaft 125, a mounting
member 133 fixed within the hollow orbiting shaft 130, an orbiting scroll 135 mounted
to a mounting portion 134 of the mounting member 133, a hollow orbiting plate 136
fixed to the lower portion of the hollow orbiting shaft 130, an Oldham's ring 137
provided between the bearing support 127 and a hollow orbiting plate 136 and having
protrusions 138 and 139, grooves 140 and 141 formed on the bearing support 127 and
the hollow orbiting plate 136, the protrusions 138 and 139 being engaged with the
grooves 140 and 141, and a suction pipe 142 and a discharge pipe 143 connected to
the stationary scroll 122.
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