FIELD: physics.
SUBSTANCE: subject of the present invention is a metal shaft movement, at the ends of the stems, characterized that as a metal for its manufacturing used austenitic steel, austenitic alloy of cobalt or nickel austenitic alloy with the aim of limiting its susceptibility to magnetic fields, as well as the fact that at least the external surface of specified at least one pin subjected to hardening at a certain depth to the center axis.
EFFECT: increasing the surface hardness.
13 cl, 5 dwg
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