Vernier caliper, digital vernier caliper, different components. For calibration of verniers, calipers, micrometers and depth gauges, time electronics 7151 includes gauge blocks and extras for comprehensive dimensional calibration. Caliper gear tooth for measures gear tooth thickness on the primary diameter. Tooth thickness measurement by gear tooth vernier duration. The starrett 456 gear tooth vernier caliper is designed to measure in. The methods which are used for measuring the gear tooth thickness is. Gear tooth vernier caliper please do like our videos and subscribe our channel for more updates.
The tooth vernier caliper consists of vernier scale and two perpendicular arms. Fix gear tooth vernier calipers at theoretical value of. Gear tooth caliper vernier gear tooth caliper digital remark. Tooth thickness is the arc distance measured along the pitch circle from its intercept. Explain how it can be used for measuring the tooth thickness. Using a vernier caliper provides accurate measurements, which is a definite advantage. Gear tooth thickness varies from the tip of the base circle of the tooth, and the instrument is capable of measuring the thickness at a specified position on the tooth.
What are the advantages and disadvantages of using a vernier caliper. A good set of gear calipers comes with a set of tables and a page of instructions. How to read the caliper vernier scale easily duration. This videos are captured for the benefit of nmamit mechanical. Reviewed by robert errichello this book is a true textbook on involute gears, the first since the. The caliper consists of two adjustable verniers, that reference two dimensions on the gear and provide a measurement. Describe the construction of gear tooth vernier caliper. This video lecture will teach you how to design spur gears for mechanical strength, dynamic load and surface durability. Gear tooth vernier caliper method in gear tooth vernier method the thickness is measured at the pitch line. For the same purpose, it can also be used for measuring hobs, form and thread tools, etc. Gear tooth vernier caliper, spur gear of known module, surface plate.
The total number of division on vernier scale equally divided the minimum measurement of main scale and this is called the. One of the benefits using a caliper is that the gear does not have to be removed from the machine. Measures the depth of the teeth from the top of the pitch line. Home ordnance documents and other related manuals gear tooth vernier caliper. To check the dimensional accuracy of gear teeth, use a gear tooth vernier caliper see fig. Digital caliper groove width for measuring width, distance of internal grooves and distance from groove to reference face.
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