SIMPLIFIED: "The Three Types Of Fit"
Link to article: https://randrmanufacturing.com/blog/the-three-types-of-fit/
This article talks about fit. There are three types of fit in engineering: clearance, interference, and transition fit. Our simplified version here will go through all three types of fit and break down what each of them mean. Before I get into each one, I will quickly talk about why fit is important. When engineers have to integrate two parts together, they need to decide how they will fit. Some parts need to be designed so they have some space to move, while others need to be designed so that they stay in place with zero movement. This is where the different types of fit come in.
The first type of fit is clearance fit. Clearance fit is when there is some free movement between two parts. An example of when you might want a clearance fit is a cabinet drawer. You want that cabinet drawer to move in and out of the cabinet, so you would use a clearance fit in this scenario so that the drawer can freely move.
The second type of fit you need to know is an interference fit. An interference fit is the exact opposite of a clearance fit; this is when two parts are very tightly connected and you do not want them to move at all. As a result, for an interference fit, you will need to put in some level of force to integrate two parts together. This means that if you want to take apart these two parts, you will need to exert a decent level of force as well.
The last type of fit is called the transition fit. This is an in-between fit between the clearance fit and the interference fit. This means that the two parts will not be integrated with as much force, but there will definitely not be as much free movement like the clearance fit.
Learning these various types of fit is ultimately important in engineering because engineers will not always want to use the same type of fit. Sometimes, you want two parts to stay locked together, but other times, you want two parts to move freely. Therefore, understanding these types of fits will be beneficial when exploring the field of engineering.
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