With instrument uncertainty to 2 millionths of an inch (50 nanometers), the Labmaster Universal - Model 175 is suitable for virtually all Internal (ID), external (OD), and same side dimension (SD*) measuring applications. This laser-based universal length measuring system (ULM) has been developed by Pratt & Whitney for gage calibration laboratories that need to precisely measure length, outside diameter, inside diameter, pitch diameter, lead, major/minor diameter, taper, linear displacement, and thickness.
High accuracy is maintained by its laser interferometer, zero Abbe offset design, and large measuring table (100 lb [45 kg] capacity) with center position, height, pitch, and yaw controls. The computer-controlled precision air bearing slide and gaging probes remove operator-influenced errors commonly observed with traditional gaging methods by maintaining constant force. It also greatly minimizes wear and tear to both the measuring standards and the instrument. The large measuring table also acts as a soak plate. By design, the weight of the part will not affect the measurement because the table support is independent of the air bearing slide. This is not the case with traditional methods.
The Labmaster Universal Model 175 can also be configured around your bearing requirements to measure a wide range of anti-friction bearings; a new lab concept in industry (Model BM175; Bearing Measuring Instrument). The five basic types of anti-friction bearings can easily be measured on the ULM. They include: tapered roller bearings, needle roller bearings, ball bearings, spherical roller bearings, and cylindrical roller bearings. Measuring characteristics include: internal diameter, external diameter, outer raceway diameter, inner raceway diameter, radial internal play (radial internal clearance/play) and axial clearance (axial internal clearance/play). Other specialty measuring applications include: gears, shafts, optics, film thickness, nano gages, automotive parts, aerospace parts including aircraft engine parts, and your precision concept components can all be measured on the ULM.