Please forward this error screen to sharedip-1071809790. In mechanical engineering, a internal keyway slotting machine is a machine element used to connect a rotating machine element to a shaft.
The key prevents relative rotation between the two parts and may enable torque transmission. For a key to function, the shaft and rotating machine element must have a keyway and a keyseat, which is a slot and pocket in which the key fits. The whole system is called a keyed joint.
A keyed joint may allow relative axial movement between the parts. Commonly keyed components include gears, pulleys, couplings, and washers. There are five main types of keys: sunk, saddle, tangent, round, and spline.