[ High precision machine parts, namely, rotary stroke ball bearings and ball bushings ]

Precision measuring instruments, apparatus and units, namely, air gages, angle gages, automatic gages, bore gages, caliper gages, countersink gages, depth gages, dial bore gages, electronic gages, electronic plug gages, engineered gages, [ wire gages, ] geometry gages, groove gages, height gages, indicating gages, lab gages, position gages, pin gages, plug gages, ring gages, snap gages, thickness gages, thread plug gages, [ thread ring gages, thread snap gages, ] universal measuring gages, [ gage blocks, ceramic gage blocks, ] gage block comparators, gage heads, gage stands, calipers, [ digital calipers, vernier calipers, gear measuring instruments in the nature of gear roll testers, gear mesh testers, gear pitchline runout testers, gear tooth thickness testers and gear pitch variation testers, micrometers, bench micrometers, depth micrometers, inside micrometers, thread micrometers, ] comparator stands, comparators, dial comparators, dial indicators, digital indicators, indicator stands, test dial indicators, camshaft gages, gages for measuring the coaxiality, concentricity, contour, cylindricity, diameter, eccentricity, flatness, form, length, perpendicularity, roughness, straightness, surface finish, surface roughness, thickness and waviness of an object, [ laser gages, ] non-contact gages, [ optical gages, ] slot gages, taper gages, [ thread gages, ] wall thickness gages, universal gages, calibration gages, profilometers, [ coordinate measuring machines for measuring the three dimensional coordinates of an object, ] automatic size control gages; high precision measurement columns, [ cylindrical squares, ] and standards for comparing manufactured machined goods to a known dimension, [ double flank gear roll gages, electronic columns for comparing manufactured machined goods to a known dimension, ] electronic levels, incremental probes, inductive measuring probes not for medical use, linear scales, master measurers in the nature of master discs and master rings, measuring heads, transducers, [ rotary stroke bearings, ball bushings, ] amplifiers, electronic amplifiers, gaging amplifiers, electrical connection interfaces for collection of data from a data source, software for controlling precision measuring instruments