Thread ring gages are fundamental tools used in the manufacturing and inspection of threaded parts. They allow for precise measurement of male threads to confirm they meet required specifications. In this article, we’ll discuss why thread ring gages are important, how they work, and when they should be used to ensure the correct fit and function of threaded components. Lastly, we’ll cover where to shop thread ring gages.
What is a Thread Ring Gage?
A thread ring gage (or gauge) is a tool designed to measure the external threads of a part. It has two main components: the GO gage and the NO GO gage. These gages check the functional diameter of threads, ensuring that male threads will fit and work properly with corresponding female threads.
The GO gage checks that the part’s thread is large enough to fit the female thread, while the NO GO gage ensures the thread isn’t too small. Together, they provide a full picture of the part’s thread dimensions.
How Thread Ring Gages Work
Thread ring gages work by measuring the pitch diameter of a male thread, which is the diameter of an imaginary cylinder that runs through the thread. The gage ensures that this diameter meets the required specifications for the part to function as intended.
The GO gage is the first step in the process. If the part’s thread is sized correctly, the GO gage will screw on easily with light pressure and fit all the way to the end of the thread. If it doesn’t fit properly, it indicates that the functional diameter is too large, which could cause the part to fail during use.
The NO GO gage checks for the opposite issue: it ensures that the external thread isn’t too small. When used correctly, it should screw onto the part for only 1-2 turns. If it goes further than that, the thread is too small and won’t provide a reliable fit.
Why Thread Ring Gages are Important
Thread ring gauges are used in quality control to guarantee that threaded parts meet exact specifications. They are especially important in industries where precision is key, such as aerospace, automotive, and electronics.
By using a thread ring gauge, manufacturers can avoid costly mistakes due to improperly sized threads. Threads that are too large or too small can cause parts to fail or not fit together properly, leading to delays and increased costs. Thread ring gauges help prevent these issues by providing a quick, reliable method for checking the fit and function of threads.
When Should You Use a Thread Ring Gage?
You should use a thread ring gage whenever you need to verify the accuracy of external threads on a part. These gages are ideal for use during both the manufacturing process and for post-production inspection.
If you are manufacturing a batch of threaded parts, using thread ring gages ensures that each part meets the same high standard for fit and function. For post-production inspections, thread ring gages allow for quick verification that the parts meet the specifications laid out in the blueprint.
They are also invaluable when conducting maintenance or repairs on threaded components. If you need to replace or repair a part with threaded elements, a thread ring gage will confirm that the new or repaired part fits correctly with the existing components.
Looking For a Ring Gage Supplier?
For over 51 years, Willrich Precision Instrument has been a trusted name in the field of metrology, offering a comprehensive range of gaging solutions, including a selection of thread ring gages. With products that span from basic measuring tools to advanced metrology systems from established brands in the field, we’re dedicated to providing the right solutions to meet your specific measurement needs. With expertise in dimensional inspection and a strong commitment to quality we’re an ideal partner for businesses seeking precise, reliable tools!
