Today we will discuss the axial, radial and tangential direction.
What is that?There is a big problem to understand what is axial, radial & tangential. Sometimes we can't identify them. Sometimes we listen to axial flow, radial flow or tangential flow but can't understand. Let's understand with an example, Consider we have a cylinder, In this cylinder, we will observe where is axial, radial & tangential. If any force is applied like that so that is applied on the radial flow direction. If a force is applied on the surface like this or like that so that is applied on the tangential direction. This is radial and that is tangential. If any force is applied like this, so this is called axial. You can learn radial in a simple way that radial force is applied along the radius while along the tangent called tangential & along the axis called axial force. Difference between axial and tangential is that tangential force is applied on the tangent, on the surface and in axial, not on the surface, means that if we shift axial direction force to the surface, it will become a tangential force. But, the difference between tangential and axial is that tangential force always acting on the surface while axial does not. And radial is always on the radius. If any flow comes like that, usually we hear in turbines, like radial turbine or axial flow turbine. If axial is here, so its inlet is coming from here like that and if radial inlet, it's coming from the top like that so that is the difference between the radial, axial and tangential. Thank you Suggested Read: What is linear bearing & How do they work Types of Bearings and Their Uses How ball Bearings Works
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A bearing is a machine element that constrains relative motion to only the desired motion and reduces friction between moving parts.
The design of the bearing may, for example, provide for free linear movement of the moving parts or free rotation around a fixed axis; or, it may prevent a motion by controlling the vectors of normal forces that bear on the moving parts. Most bearings facilitate the desired motion by minimizing friction. Bearings are classified broadly according to the type of operation, the motions allowed, or to the directions of the loads applied to the parts. In this article, I will go to show you the Difference Types of Bearing and their application. There are at least 6 common types of bearing, each of which operates on different principles: Plain Bearings: Plain bearings are the simplest type of bearing and are composed of just the bearing surface with no rolling elements. They have a high load-carrying capacity, are generally the least expensive and, depending on the materials, have much longer lives than other types. Plain Bearings are several specific styles: such as bushing, journal bearing, sleeve bearing, rifle bearing, composite bearing. Rolling-element bearings: Rolling-element bearing in which rolling elements placed between the turning and stationary races prevent sliding friction. There are two main types Ball-bearing and Roller bearing. Ball bearings are extremely common because they can handle both radial and thrust loads, but can only handle a small amount of weight. They are found in a wide array of applications, such as roller blades and even hard drives. Roller bearings are designed to carry heavy loads the primary roller is a cylinder, which means the load is distributed over a larger area, enabling the bearing to handle larger amounts of weight. Suggested article: Anti-friction roller bearing ( Strikingly ) Jewel Bearings: Jewel bearings are plain bearings with a metal spindle that turns in a jewel-lined pivot hole. They carry loads by rolling the axle slightly off-centre and are usually used in mechanical watches or clocks. Fluid Bearings: Fluid bearings support their load using a thin layer of gas or liquid and can be classified into two types: fluid-dynamic bearings and hydrostatic bearings. Fluid-dynamic bearings use rotation to form the liquid into a lubricating wedge against the inner surface. In hydrostatic bearings, the fluids usually oil, water, or air rely on an external pump. Fluid bearings are used in high load, high speed or high precision application. Magnetic Bearings: Magnetic bearings support moving parts without physical contact, instead of relying on magnetic fields to carry the loads. They require continuous power input to keep the load stable, thus requiring a back-up bearing in the case of power or control system failure. Flexure Bearings: A typical flexure bearing is one part joining two others, like a hinge, in which motion is supported by a load element that bends. These bearings require repeated bending. Related articles: How ball bearings work My Top 5 bearing reviews ( blogger ) Top 8 bearing companies in India There are two main types of bearings: journal and rolling element.
Journal bearings are the simplest bearings. With no moving parts, the portion of the shaft in contact with the bearing or journal rides on a thin film of oil to support the shaft. Journal bearings are economical, compact, lightweight, and have a high load-carrying capacity. Rolling element bearings for industrial machinery come in four standard types: ball, cylindrical, spherical, and tapered bearings. Ball bearings separate the rotating shaft from the stationary mounting by rotating balls. This allows for a more even distribution of load and lowers friction compared to journal bearings. Cylindrical roller bearings use the same principle as ball bearings but have higher radial load capacity. They typically have lower axial load capacity than ball bearings. With a spherical roller bearing, rollers are thicker in the middle and thinner at the ends. This type of roller can accommodate both static and dynamic misalignment better than other bearing types. Spherical rollers are more difficult to produce with higher friction than cylindrical rollers. Tapered roller bearings are designed to take radial and axial loads simultaneously where other bearings are designed to take only one at a time. For more information on condition monitoring basics, visit padiaent.com. |
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