FIELD: transport.
SUBSTANCE: invention relates to auxiliary devices used in machine building as jacks or liner motors. Hollow rod and lead screw nut are coupled by floating spherical support; bearing assembly is arranged in housing with clearance and has four symmetric rectangular slots that correspond to four through rectangular slots made on housing walls. Four locking bolts are arranged on housing outer surface entered into bearing assembly slots with clearance to lock said assembly axially to allow it displacing radially relative to housing axis.
EFFECT: lower radial force component on lead screw and reduced requirements to precision of manufacturing jack mating parts, longer life.
3 cl, 1 dwg
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