What is the primary purpose of a yoke in machinery?

The primary purpose of a yoke in machinery is to connect parts together. A yoke serves as a structural component that links different machine parts, ensuring they function cohesively. This is particularly important in various mechanical applications where proper alignment and connection are essential for the efficient transmission of motion and force.

In typical scenarios, a yoke can be found in driveshaft systems, where it connects the driveshaft to other components, allowing for the necessary angular movement while maintaining the connection. This role of linking parts is crucial in sustaining the integrity of the machinery and facilitating smooth operation.

While it might seem that a yoke could also play roles related to the other options, such as amplifying force or restraining motion, its fundamental function is more accurately described as a means of connection between different elements of a machine.