276°
Posted 20 hours ago

Keyed Shaft, Dia. 5/8 In, 6 In L, CS

£9.9£99Clearance
ZTS2023's avatar
Shared by
ZTS2023
Joined in 2023
82
63

About this deal

An installed wing key cannot run axially. This lets workers subsequently adjust the position of the mounted components along the shaft. Whether you require a small- or large-width key bar, we have everything you might need under one roof. Our high-quality key steels are available in width and depth ranges from 3mm to 22mm, so you can browse through the different options at your leisure to find just the key steel you are looking for.

A Shaft key is a piece of metal used to connect a rotating machine element to the shaft. A shaft key prevents a relative rotation between the two parts, and may enable torque transmission to occur. For a shaft key to function properly, both the shaft and rotating elements ( gear, pulley, and coupling) must have a keyway and a keyseat. A shear key is a feature intended to fail and avoid further damage should the machinery be accidentally operated in excess of its design limits. Shear keys may be any of the designs described above, but are made from a weaker material than the shaft. The shear key is easily and inexpensively replaced, and avoids more serious damage to the mechanism that would be costly or difficult to repair. For example, a steel shaft and pulley may employ a brass key. When excessive torque is applied to the joint, the steel edges shear the brass key into two pieces, leaving the pulley spinning loosely on the shaft and relieving the rest of the machine from possible damage. It can be replaced to provide a high degree of strength or wear resistance. Austenitic (300 Series) stainless steel shaft key material should be used where the material will be exposed to a highly corrosive environment. High-strength materials are required and martensitic stainless-steel shaft key material should be used when exposed to mildly corrosive environments. Benefits and limitations of keyed jointsKeyseaters, also known as keyseating machines and keyway cutters, are specialized machines designed to cut keyways. They are very similar to vertical shapers; the difference is that the cutting tool on a keyseater enters the workpiece from the bottom and cuts on the down-stroke, while the tool on a shaper enters the workpiece from the top and cuts downward. Another difference is a keyseater has a guiding system above the workpiece to minimize deflection, which results in a closer tolerance cut. The process starts by clamping the workpiece to the table with a fixture or vise. The workpiece is properly located and then the reciprocating arm is started. Some models have a stationary table so the cutter is fed horizontally into the workpiece, while others have a movable table that feeds the workpiece into a fixed cutter. These machines can cut other straight sided features other than keyways (see the picture). They can also produce blind slots, which are slots that do not extend through the whole workpiece. [7] [8] Wire-cut electrical-discharge machining (EDM) [ edit ] Spoiled shafts are used when the force to be transmitted is proportional to the size of the shaft as in automobile transmission and sliding gear transmission. By using split shafts, we obtain axial movement as well as a positive drive. Material Selection for Shaft key Bhandari, V. B. (2007), Design of machine elements (2nded.), Tata McGraw-Hill, p.340, ISBN 978-0-07-061141-2. The keyway is similar to a parallel key except that it exits the tangent from the outer shaft to the inner shaft. What happens on the side of the heels of each key-way form against which the key sits, and transfers compressive force. Occasionally, the keys are formed inseparably with the shaft that fits into the keyway fitted to the hub. Such shafts are known as splendid shafts. These shafts usually have four, six, ten, or sixteen partitions. Peeled shafts are relatively stronger than single keyway shafts.

Compared to sunk keys, saddle keys are not sunk into the shaft and hub instead they are only sunk into the hub. They either sit on a flat or the circumference of the shaft. Power transmission is achieved through friction between the shaft and the key. The saddle keys are of the following two types: Leonard, William Samuel (1919) [1905]. Machine-shop Tools and Methods (Revised 7thed.). New York: John Wiley & Sons. pp. 39–42. OCLC 848146647 . Retrieved 30 April 2019. Keyed Shaft, what is a keyed motor shaft. In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. A machine runs by the power supplied to it by a prime mover such as motor, engine, etc. The power is then transmitted from the prime mover to the machine through a coupler which couples the shafts of the prime mover and the machine. Keyed Shafts can be found in industries ranging from automotive manufacturing to aerospace engineering. Professionals use them in everything from electric motors and transmissions to pumps and compressors. Find the Keyed Shafts You Need at Zoro They are mostly used to transmit only unidirectional torques subjected to lighter initial loads, or in applications that require periodic clearance or sliding of the hub, as the drive component may become free due to multi-axial torches, While the major loosens and gets trapped inside. Machine, the reason for failure. 4. Gib head keyThe feather key is a parallel key, which is square and rectangular, with a radius apart and length tolerances at both ends. The mating shaft key slot is mechanized with an end-mill cutting tool to the same length as the wing key. This oval shape holds the key in the shaft and prevents axial motion. Broken keyways in mounted components are similar to traditional keys used for parallel keys, so no changes to mounted components are necessary.

The shaft key material must be chosen based on the operating environment. A designer must very carefully consider the loads that will be applied to the material and what kind of environment will be in the service. Carbon steel is used more broadly than any other material. Carbon steel provides very good strength through heat treatment. A Scotch key or Dutch key features a circular keyway hole (instead of rectangular), produced by drilling axially into the assembled hub and shaft, with a metal dowel pin serving as the key. If the hole and key are tapered, the key is referred to as a Dutch pin, which is driven in and optionally finished by cutting or grinding flush with the end of the shaft. If a straight Dutch keyway hole is optionally tapped with a thread, then an ordinary screw serves as the threaded Dutch key. Shigley, Joseph; Mischke, Charles (1989), Mechanical Engineering Design (5ed.), McGraw-Hill, ISBN 0-07-331657-1.Install them in the shaft to transmit gear from the shaft to the shaft and other components. Machine keys are often the same material and are harder or tougher than the shafts or other components with which they are used. To use a key as part of a sacrifice, choose a soft key that will turn off when exposed to excessive force, so as not to damage expensive equipment. 2. Square Sunk key Garfield, Eugene (2007). "The John Scott Award Recipients from 1826 - present" . Retrieved 2007-08-23. Shaft Keys are made of varied types of materials and also come in different shapes and sizes. The most common key shapes are rectangular or tapered and are typically made of steel.

One part of the Shaft key fits into a precut slot in the shaft known as a key seat and the other part fits into a slot in the hub called a keyway. The whole system is called a keyed joint. A keyed joint may allow relative axial movement between the parts. A saddle key is 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 compared to a flat key, or sunk key.

Looking for a part not listed here?

Improperly machined keyways that had cutter deflection or drifting occur, may not be strong enough for the required application. [12] See also [ edit ] They are normally specified for shafts with 0.25 to 1.0-in. Diameter but larger square keys are available for shafts up to 6.5 inches. Diameter. Designers use them when they want as much depth as possible with rectangular keys. 3. Parallel Sunk key

Asda Great Deal

Free UK shipping. 15 day free returns.
Community Updates
*So you can easily identify outgoing links on our site, we've marked them with an "*" symbol. Links on our site are monetised, but this never affects which deals get posted. Find more info in our FAQs and About Us page.
New Comment