How do you choose the right thread gages for your projects? There are different types of thread gages, and that means there are many factors to consider when choosing which one is best for the job at hand. This guide is going to explain the different types of thread gages and provide you with some tips on when you would want to use each one.
Thread Gages
Thread gages are used to measure the diameter and pitch of a thread. They can be used to check the accuracy of a threaded part or assembly by comparing it against standard measurements that have been made on reference gages.
There are several types of thread gages available for different applications. Each type offers unique features that make it more suitable for certain applications than others, so it's important to choose the right one.
Types of Thread Gages
There are two main types of thread gages: those with a fixed stem and those with an adjustable stem. Fixed-stem thread gages have a single fixed measurement point along their length, which makes them ideal for use in situations where only one measurement is needed. If you need multiple measurements, however, adjustable-stem thread gages are more useful because they allow you to do multiple readings quickly and easily.
Fixed-stem thread gages come in two styles: parallel and angular contact. Parallel fixed-stem gages have parallel jaws that touch each other when they're pressed together around a cylinder; angular contact fixed-stem gages have jaws that meet at an angle when pressed together around a cylinder or cone.
Plain Cylindrical Thread Gage
The most common type of thread gage, a plain cylindrical thread gage, is used to measure the pitch diameter and minor diameter of a thread. The measurement can be made on an internal or external thread. The gauge has a lead screw that advances a probe into the hole as it is rotated.
The flat part of the probe contacts the surface of the thread and moves along with it as it rotates. The contact between the probe and thread produces friction, which causes wear on both surfaces over time. This wear can cause errors in measurements if not corrected periodically or if not removed by grinding off worn surfaces before measuring again.
Plug Thread Gage
Plug thread gages are used to measure the internal and external diameters of a hole. These gages have a plug that fits inside the hole to be measured. The plug has a single-piece taper with several threads on it. The threads are cut to fit the desired diameter of the hole.
Plug thread gages can be used to measure both internal and external diameters of holes. They are also available in different sizes, which makes them useful for many applications.
Plug thread gages are used primarily for measurement purposes, but they can also be used as cutting tools if needed.
Ring Thread Gage
Ring gages are another common type of thread gage. They consist of an internal ring with external threads and a measuring screw that moves up and down the length of the internal ring. The size of the internal ring is determined by the diameter of its outer edge, which is usually marked with graduations that indicate its diameter. The measuring screw has a handle at one end and a head on the other end. When this type of thread gage is used, it must be placed in contact with the surface being tested and rotated until it stops turning because it cannot pass through any more than one full revolution. It then must be read directly from its markings on either side.
Thread gages can be really helpful for many projects. Contact a British thread gage vendor to get what you need for your projects.
Share13 June 2022
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