The URM-WZ is a Gear measuring inspection machine. This device has individual inspection parameters for double flank radial error Fi'',double flank tooth-to-tooth deviation fi', double flank runout deviation Fr' and short wave-length component fk'. Measuring slides are released fast. Fixed centres and arbours on measuring slide, adjusting slide or machine bed, which eliminates any influences of runout deviation of the mounting. attachment. The gear, mounted on the drive side of the measuring slide, is operated by a special device.