Handräder

Handräder, also known as handwheels, are manual control devices typically used to operate machinery or equipment. They provide a means for users to exert torque and control the movement or position of a component. The design of a handwheel usually consists of a circular rim that can be gripped and rotated, connected to a central hub or shaft. This hub is then attached to the mechanism it controls, such as a valve stem, screw, or gear.

The primary function of a handwheel is to translate rotational motion into linear or other forms of motion. This is commonly seen in applications like industrial valves, where turning a handwheel opens or closes the flow of a fluid. They are also found on machine tools for precise adjustments of cutting tools or workpieces. The size and shape of a handwheel can vary greatly depending on the required torque, the available space, and the ergonomic needs of the operator. Some handwheels are simple, solid disks, while others feature spokes or ergonomic grips for easier and more comfortable operation. Materials used in their construction include metals like cast iron, steel, and aluminum, as well as plastics for lighter-duty applications. Their simplicity and reliability make them a ubiquitous component in many mechanical systems.