Consisting of leafs, knuckles and a pin, a hinge is a simple mechanical bearing that’s used to create a joint. They feature two leafs, each of which is installed on a separate workpiece. After the leafs have been secured to the workpieces, they’ll allow for a limited range of rotational movement. A hinge on a door, for example, allows you to open the door — but only to a certain degree. Hinges come in many different sizes and shapes. Some of them are short and rectangular. There are also strap hinges, which feature a unique size and shape.
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