Keyway is the term for the shape of the interface between a lock and its key. It’s most clearly seen when you imagine the cross section of the blade of a key.
What is the keyway on an engine?
A keyway is a square channel machined into round a steel bar. The channel, or keyway, provides a place for a square piece of metal known as a key to lock a pulley or sprocket onto the round bar.In automobile engines, the crankshaft has a keyway machined into the snout end that holds the harmonic balancer in position.
Which is the function of keyway?
What are Keys & keyways? A key and the keyways make up a Keyed joint to secure the hub and the shaft to prevent relative movement between a power transmitting shaft and an attached component. For example, Gear drives, Pulleys or Sprockets are connected securely using keys to the power transmitting shaft (Figure 1).
What is a keyway in construction?
a groove in a shaft, the hub of a wheel, etc., for receiving part of a key holding it to another part. a slot in a lock for receiving and guiding the key. (in poured-concrete construction) a longitudinal groove in a footing, or in a pour that has set, providing a key for newly poured concrete.
What is a keyway and how is it formed?
Keyways are formed by milling groves into the key blade creating a final shape. (Watch: Video of Key Milling Tool). There can be one or more milling groves in a key blade. A key blank can be cut into any number of keyways, but the correct tools are required to achieve more complex keyways.
What is keyway and Keyseat?
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). (Figure 2) Keys are made of varied types of materials, and also come in different shapes and sizes.
How much torque can a keyway handle?
The limiting pressure point of a keyed shaft is the keyway side of the male shaft, provided the proper key material is selected. Thus, 270 Nm is the maximum torque that can be transmitted before the 19 mm diameter keyed shaft plastically deforms.
What is keyway factor?
A key factor is defined as the factor in the activities of an undertaking which, at a particular point of time or over a period, will limit the volume of output. Other variant terms are limiting factor, Principal Budget Factor & scarce factor. Limiting factors are governed by both internal & external factors.
What are keyways made of?
Typically, key stock is made from carbon steel or stainless steel, but can also be made from aluminum, brass, copper, monel, and even nylon, all with varying material grades. AISI 316 stainless is also available for marine applications.
How do you find a keyway?
Look at the large end of the key (also called the bow). If the bow has straight sides and a triangle-shaped top (like a house), you probably have a KW1 keyway. If the key is diamond-shaped (narrower at the top and bottom and wide in the middle), you probably have a SC1 keyway.
What is the function of key in shaft?
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 are keys and splines?
Abstract. Splines and keys are machinery components placed at the interface between shafts and hubs of power-transmitting elements. A spline (or key) is usually machined (or attached) onto the shaft of a power-transmitting pair, and the corresponding groove is cut into the hub.
Where is sunk key used?
(e) Splines. (a) Sunk keys: 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 key steel used for?
Key Steel is widely used for many general engineering applications. Typical key steel applications include taper, gibhead, plain and parallel keys.
What is a feather key?
Definition of feather key
in machinery. : a sunk key without taper that is permanently fixed in one of the connected pieces and that is a sliding fit in a keyway in the other so as to permit relative longitudinal motion. called also spline.
What are machine design keys?
key, in machine construction, a device used to prevent rotation of a machine component, such as a gear or a pulley, relative to the shaft on which it is mounted. A common type of key is a square bar that fits half in a groove (keyway) in the shaft and half in an adjoining keyway in the component.
Are Woodruff keys hardened?
Keys are non- hardened and are easy to machine. Use for general purpose applications. Half-moon shaped keys lock pulleys and gears to transmission shafts. Woodruff keys go deep into the keyway shaft and become embeddedbut can still rock and adjust to an angular spine.
What is saddle key?
Definition of saddle key
: a key for securing a member to a machine shaft that fits into a keyway in the secured member and is concave to grip the shaft by friction compare flat key, sunk key.
What is sunk key?
Definition of sunk key
: a key that fits into keyways in both the shaft and the secured member in machinery compare saddle key.
How are keyways dimensioned?
Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway.Unless otherwise specified, the shaft keyway is assumed to be standard.
Which is the function of keyway Mcq?
The primary function of the key is to transmit the torque from the shaft to the hub of the mating element and vice versa. 4. The keyway on the shaft results in better stress distribution.
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