FIELD: manufacture of radial-thrust ball bearings; determination of diameters of raceways of outer and inner races before assembly of bearings. SUBSTANCE: proposed device is used for measurement of deviation of assembly size of raceways from nominal magnitude; this device includes unit for measurement of outer doublerow races and unit for measurement of inner single-row races. Unit for measurement of outer double-row races has fixed and movable plug gauges separated by cage. Unit for measurement of inner single-row races has immovable bush with measuring balls located in circular shoulder on its butt; these balls are also separated by cage; it also has meter for measuring motion of base end of race being measured. EFFECT: enhanced accuracy of measurement at absence of rotation of race being measured. 6 dwg
