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What is a keyed shaft used for?
They are used to hold pulleys, gears, couplings, clutches, and sprockets to the shafts so that they rotate together. 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.
What is a gear keyway?
What is a Keyway? When a gear, or something similar, needs to fit onto a rod or shaft and transfer force, in the form of rotation, a key helps accomplish this. A notch called a keyway is cut on the inside of the gear along with another notch cut, longways, into the shaft.
What is the slot called in a shaft that a key fits into?
Usually the term keyseat is referred as a groove or pocket on a shaft, and a keyway is a slot in a hub in which the key fits into. The complete system is called a keyed joint (Figure 2).
Where is sunk key used?
A sunk key is a key in which half the thickness of the key fits into the keyway on the shaft and the remaining half in the keyway on the hub. Therefore, keyways are required both on the shaft as well as the hub of the mating element.
What is the application of key is to join?
In mechanical engineering, a key 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.
What is sunk key?
: a key that fits into keyways in both the shaft and the secured member in machinery — compare saddle key.
What is the purpose of key?
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.
Which is the function of key way?
A keyway is a recess in a shaft or hub to receive a key, and these recesses are commonly cut on key-seating machines or by broaching, milling, planning, shaping and slotting.
Why is it called a Woodruff key?
ETYMOLOGY OF THE WORD WOODRUFF KEY Named after the Woodruff Manufacturing Co, in Hartford, Connecticut, who first manufactured it in 1892.
Are Keys standard?
This International Standard specifies the dimensional characteristics of tangential keys and of their corresponding keyways in shaft and hub. It also gives the relation to be observed between the diameter of the shaft and the section of the key.
What is the main advantage of sunk key?
Explanation: In sunk key, relative motion is also prevented by shear resistance of sunk key and hence sunk key is recommended. 6. The main advantage of sunk key is that it is a _____ drive. Explanation: Sunk key is a positive drive and no slip occurs.