Tapernøkkel

Tapernøkkel is a Norwegian term that translates to "taper key" or "wedge key" in English. It refers to a type of mechanical fastener used to connect a rotating machine element, such as a gear or pulley, to a shaft. The tapernøkkel is characterized by its tapered cross-section, meaning it is thicker at one end than the other. This taper allows for a secure and snug fit when inserted into a corresponding keyway or slot that is also tapered.

The primary function of a tapernøkkel is to transmit torque from the shaft to the attached component and vice versa, preventing relative rotational movement. When the component is pressed onto the shaft, the taper of the key is forced into the matching taper of the keyway. This wedging action creates a tight interference fit, which is crucial for high-torque applications. Unlike parallel keys, tapernøkler can often be installed without the need for a retaining mechanism, as the taper itself provides sufficient holding force.

Tapernøkler are commonly used in various industrial machinery, automotive applications, and general engineering where a reliable and robust connection is required. They are typically made from hardened steel to withstand the stresses of torque transmission and wear. The design of the taper angle and dimensions is critical and depends on the specific application and the torque requirements. Proper installation ensures that the tapernøkkel effectively prevents slippage and ensures the efficient transfer of rotational power.