• PDF Brochure - Labmaster Universal Model 175

Labmaster Universal - Model 175
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 machine (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. Air bearings are also highly resistant to contamination and have inherent vibration-damping properties that increase stability and accuracy. 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 Universal Length Measuring Machine is capable of measuring gage blocks, end standards, plain rings, threaded rings & plugs, API gages, pin & plug gages, tapered plugs, cylindrical setting gauges, micrometers, indicators, LVDTs, calipers, and snap gauges with instrument uncertainty to 2 millionths of an inch (0.05 micron). It is suitable for virtually all ID and OD gage calibration applications through its wide 0.020-inch (0.5 mm) to 14-inches (356 mm) measuring range. Only a handful of traceable masters, such as blocks, rings, etc. are needed (not included). The ULM includes Pratt & Whitney’s GageCal software that automatically enters tolerances for rings, plugs, pins, balls, threads (calculates pitch/major diameter) and flags out of tolerance conditions.

The Labmaster^® Universal Model 175 measures:

• Your Precision Parts
• Spheres
• Ring Gages
• Gage Blocks / Slip Gauges
• Setting Standards (Frames, Rods)
• End Standards / Ball Bars for CMMs
• Threaded Rings & Plugs (NPT) 
• Tapered Rings & Plugs
• Pin & Plug Gages
• Taper Threads - Pipe Threads (API Gages)
• Cylindrical Setting Gages
• Segment Gages 
• Ball Bearings
• Coating Thickness Gage Standards 
• Rolling Bearings (Tapered, Cylindrical, Spherical, Needle)
• Shafts
• Micrometers
• Dial / Test Indicators & Dial Calipers
• LVDTs / Glass Scales
• Electronic Vernier Calipers
• Rulers
• Lead Gage Setting Standards      
• Snap Gages
• Variable Screw Thread Gages (Tri-Roll)  
• Taps, Dies, and Cutting Tools
• Feeler Gages
• Depth Micrometers
• Inside / Outside Micrometers
• Gears / Splines
• Dial Bore Gages / Swing Gages
• Master Setting Bars, Setting Masters, CMM Masters, Precision Parts
• ID/OD Threads - Detailed List

Pratt & Whitney
Pratt & Whitney®, founded in 1860, is a global supplier of ultra-precision Metrology instruments, inspection gaging systems, and length measuring machines. Our instruments incorporate the latest in laser and sensor technology allowing for fast and accurate measurements.  Industry applications span across a wide range including, but not limited to: aerospace components, automotive parts, medical devices, thin film materials, roller & ball bearings, transducers, optical components, semiconductor devices, gear-spline-thread assemblies.  Calibration laboratory applications include: gage blocks, internal and external threads, national pipe threads (NPT), cylindrical plugs, pin gages, ring gages, dial/test indicators, length standards, taper gages, micrometers, calipers, snap gages, disc masters, API gages, thread wires, bore gauges, and your precision parts.