What is Gauge and Types of Gauges in MSA ?

What is Gauge and Types of Gauges in MSA?

→ Gauges are the inspection tools without scale which are used to check manufacturing parts.
→ Gauges do not indicate the actual value of the inspected dimension on the parts.
→ They can only be used to determine whether the inspected part has been made within the specified limit.
→ A clear distinction between measuring instruments and gauges is not always observed, at that times Gauges are used largely for measuring work.

1) Types of Gauges:

→ Various Gauges are mentioned below:
What is Gauge and Types of Gauges in MSA

➤ (a) Standard Gauges:

     ∎ If the gauge is an exact copy of the mating part of the component to be checked, it is called Standard Gauge
     ∎ Widely used for checking the limit of the dimensions of the part, i.e lower limit and higher limit they are known as "Go" and "No-Go" gauge
     ∎ Examples : Ring gauge, Plug gauge, Slip gauge etc....

➤ (b) Non-Standard Gauges:

     ∎ The gauge has no accurate standard measurement but it is made from some relative reference is called non-standard gauges.
     ∎ Examples: Checking fixture, Temples etc....

2) Gauges are needed due to the following reasons:

→ Inter-changeability of parts.
→ Smooth Assembly.
→ Easiness in manufacturing



3) Handling of Gauges:

→ Do not use gauges as a hammer, this will cause deformation of the gauge.
→ Avoid any hard/sharp object to come in contact with the gauge, this will cause a dent/scratches on the gauge surface.
→ Do not force the gauge inside the hole to be measured, this will cause fast wear and damage the gauge, Let the gauge enter the hole with its own weight.
→ After usage, grease/oil should be applied and kept at a proper place.


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➨ See Also:
👉 MSA (Measurement System Analysis) - Quality Core Tool