Linear bearings are rolling or sliding elements that facilitate linear motion across a straight pathway in a mechanism. They are often used in sliding doors, 3D printers, and laser cutters because they can follow very direct and precise lines of movement. In general, linear bearings can be split into two main categories consisting of rolling types and sliding types. As the name suggests, rolling types typically use a free-moving ball or roller that rolls across a surface, whereas sliding types use lubricated elements to effectively slide across a track. Both of these variations are explained in this article, among other important information about selecting a linear bearing.
Rolling type bearings may either implement a ball or cylindrical roller that can be recirculating or non-recirculating in reference to the extent of the free movement of the rolling mechanism. Non-recirculating types sandwich the balls or rollers along the complete lengths of paired rails or “ways.” As such, the rails move relative to each other as the rolling elements rotate between them. This design can provide very precise linear motion with some bearings using a crossed design for even higher accuracy. However, the length of the rolling element’s stroke is therefore confined by several elements, so it may not be best for every application. In contrast, recirculating ball and roller bearings are completely free-moving with no set limits on their travel distance. This is because the rolling elements travel the whole length of the bearing as it moves along the rod, but then return back through the carrier, creating an endless loop of load-bearing elements.
Rather than rolling between two surfaces, sliding type bearings rely on a lubricating film between their parts to facilitate their smooth motion across a track. Some sliding bearings are self-lubricating and include polymer that has very low friction across a surface. These are often used in food packaging operations for their ability to run without lubricants and to withstand washdown chemicals. However, because polymers are subject to cold flow at high loads and do not dissipate heat well, polymer is often bonded in thin sections to metal backings for the advantages of both. Other sliding bearings are not self-lubricating and are made of porous metal or composites that can effectively hold onto lubricating fluid. To make them slightly adjustable, some linear bearings can be crowned slightly to adapt to shaft deflection. In other cases where more adjustment is needed, they may also be supported in the housing by O-rings.
When choosing the right linear bearing for an assembly, there are several things to consider that may help your decision. Firstly, the precision of the application can require different bearing types. Bronze bearings are well-suited for applications where loads are high and smooth motion is required, but neither speed nor accuracy is important. Alternatively, where loads are high and accuracy is necessary, a recirculation roller bearing and profile rail might be the preferred choice. Another factor to note is that ball bearings are easily contaminated by particulates as they are typically harder to fully seal. As such, although seals, wipers, and way covers all offer means of minimizing contamination, very dirty environments may be better suited to a sliding bearing. However, note that the friction of these will often be much higher than that of roller bearings.
Overall, linear bearings provide an effective means for facilitating smooth motion along a straight or curved track. To suit a myriad of applications, they come in a few varieties, many of which can be found in our online catalog. When you are looking for a high-quality option that is perfectly suited to your assembly, you can rely on Simplified Purchasing to supply you with the parts and information you require. If you are on the market for aircraft bearings or other aviation-grade components, we invite you to browse our catalog of parts and make use of our Request for Quote (RFQ) service to receive competitive quotes for your comparisons on any item(s) of interest. Our team of experts is available 24/7x365 and will reply with a quote in just 15 minutes of receiving your completed form!

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Roller bearings are mechanical components that support connecting and rotating shafts to help with movement and mobilization within machinery. Essentially, thesy are metal elements utilized to reduce friction and are equipped to handle radial, axial, and thrust loads. Moreover, they are found in a wide range of applications from the motor industry to home appliances, making them incredibly versatile devices. As such, there are different types of roller bearings available on the market, some of which we will outline in this blog.
Cylindrical Roller Bearings
Cylindrical roller bearings are characterized by their cross section, wherein the cage and inner rings of the roller bearing holds numerous micro-cylinders. These roller bearings are designed to enable thermal expansion during the transmission of power to allow for high performance and durability even under harsh conditions. They take advantage of their conveyor-like maneuverability to minimize friction for heavy radial loads. However, a cylindrical roller bearing is considered a radial bearing, meaning that it is designed to withstand forces perpendicular to the access. That being said, they find use in oil pumps, motors, material handling assemblies, wind turbines, transmission systems, agricultural equipment, and countless other applications.
Tapered Roller Bearings
Tapered roller bearings feature an angular design wherein the cylindrical rolling element in their architecture is holding a tapered outer edge, allowing it to handle both radial and axial loads. In fact, the more tapered the component, the higher axial loads it can support. When two tapered roller bearings are used in conjunction, like you would see in vehicle wheels, they have higher durability. These bearing types are available in single, double, and four-row variations, and they can be found in propeller shafts, rolling mills, gearboxes, and more.
Spherical Roller Bearings
Spherical roller bearings are designed with a cross section with rolling components that resemble a cask or barrel. These bearings primarily provide dual-directional thrust and movement versatility due to the fact that their omni-tapered ends enable the rolling components to absorb friction transmission regardless of any misalignment between the inner and outer rings. As they handle any misalignment, they are used in a myriad of mechanical industries, including marine propulsion, construction machinery, food processing machines, and a variety of other sectors.
Needle Roller Bearings
Needle roller bearings are a subtype of cylindrical roller bearings that are designed to handle and maintain higher radial loads. They are composed of a high number of longer and thinner cylinders within the raceway of the bearing that help increase the oil flow, increase the durability, and maintain the ability to handle high radial loads in mechanical functions. Generally, needle roller bearings are used in automobile components, transmission devices, gears, compressors, engines, and many other applications.
Simplified Purchasing is an online distributor of bearings, all of which have been sourced from top global manufacturers that we trust. With over 2 billion new, used, obsolete, and hard-to-find options, customers can easily fulfill their operational needs with time and cost savings. As our supply chain network stretches across the United States, Canada, and the United Kingdom, we can provide expedited shipping services to both domestic and international customers alike. Browse our expansive catalogs and take note of any part or component that sparks your interest. To kick start the fulfillment process, you can request a competitive quote on any desired item through our Instant RFQ service and see how Simplified Purchasing can serve as your strategic sourcing partner. For additional questions about our other offered services, call or email us at any time; we are available around the clock!

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Bearings of any type are not ever-lasting components. Over time, they experience wear, corrosion, and other forms of degradation depending on the applications in which they are installed. However, it is not common for them to fail without reason. Consisting of a donut-shaped piece of material, bearings are intended to restrict or limit the motion of a machine’s moving parts while simultaneously reducing friction between such parts.
Thrust bearings, in particular, are a type of rotary bearing that is designed to resist thrust and support axial forces caused by helical gears in vehicle gearboxes. They fail on rare occasions, but when they do, this results in catastrophic consequences for engines. Beyond significant repair costs, their failure poses a serious safety threat to all personnel in the general area.
In an engine block, thrust bearings are positioned into grooves formed in the block’s webbing. Their main function is to limit the crankshaft’s forward and backward movement by restricting the crankshaft within a certain area of motion. By controlling these movements, tolerances within the entire rotating assembly can be preserved. This is especially important at high revolutions to maintain the engine’s service life. To better understand why thrust bearings fail, we will outline three of the most common causes below.
Contaminants and Surface Finish
Dirt and contaminants can damage every type of bearing, making it the leading cause of failure. To prevent the build up of grime, an effective maintenance schedule should be put in place and cleaning should be carried out with clean clothes and refined oil. Additionally, polishing the thrust surface frequently is also paramount, and this can be achieved with a polishing machine. If any grinding marks are present on the crankshaft face, they can act like wiper blades to remove the thrust bearing’s surface oil film.
Without proper cleaning and maintenance, thrust bearings can become misaligned and grind against its surface which may generate sparking. This produces “hot spots” on the surface which can damage the overall operation of the bearing. It is worth noting that the thrust surface should always be set at 90 degrees to the crankshaft center-line, creating a thrust face that is square to the axis of the main bearing journal.
Overloading is typically caused by operator error or a distorted crankcase. In either case, overloading causes unnecessary wear and tear, as well as thrust bearing failure. To avoid overloading, the operator must not idle excessively or attempt to “hot rod.” If the problem sources from the crankcase, any additional loads should be removed and the bearing can be repaired using a 90 degree oil routine.
Simplified Purchasing is an online distributor of bearings, fasteners, and other related components that are vital to the proper functionality of engines and other machines. With over 2 billion new, used, obsolete, and hard-to-find options, customers can meet operational requirements with ease. Backed by rapid lead times and unbeatable cost savings on thousands of parts. As our supply chain network stretches across the United States, we can offer expedited shipping services on select in-stock items for both domestic and international customers.
Get started on a competitive quote for any featured item(s), and within 15 minutes of submitting a completed Request for Quote (RFQ) form, a dedicated representative will reach out with a customized solution. We only ask that you include target prices, desired quantities, and expected shipping time frames, so we can better tailor a quote that works for you. For additional questions about our other offered services, call or email us at any time; we are available around-the-clock. 

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In the world of fasteners, nuts are one of the most common types of hardware used for assembly. Typically, nuts are paired with a correlating screw or bolt, twisting onto the tail-end of the component to hold two or more objects together with compression. Depending on the application in question and the types of materials being used, there are a number of nut types that one may take advantage of. One notable option is the wing nut fastener, that of which is distinguishable by its large metal wings that extend outward from the circular component. Wing nuts are popularly used in applications where tightening and removal are done by hand, and they are used in projects small and large. To help you determine whether the wing nut is the right type of fastener for you, we will discuss its characteristics in more detail!
Wing nuts follow specifications such as ASME B18.17 or DIN 315, and they generally all feature the same metallic wings that give them their name. For the threaded part of the fastener, a hexagonal shape is most common, and they are designed to twist around the end of a bolt or screw for tightening. As such, they create the same reliable joint as many other nut and bolt assemblies, all while not requiring any special tools for installation. This is their main advantage and selling-point, allowing for a fastening solution to be created with low effort.
Depending on one’s needs, there are four main types of wing nuts,those of which are Type A, B, C, and D variations. Type A wing nuts are either cold forged or cold-formed, and they come in regular, heavy, and light dimensional types. Type B wing nuts, on the other hand, are hot forged, and they vary in the design of their wings. The Type C wing nut is die-cast, and they are available in regular and heavy dimensional types. As the final variation, Type D wing nuts are sheet metal stamped and follow Type B wing nuts with different wing styles being available.
Alongside manufacturing methods and styles, wing nuts may also vary in their construction materials, size, and other characteristics. The most common materials that are used for wing nut production include stainless steel, copper, plastic, aluminum, and other various ferrous alloys. If corrosion is a concern, then zinc plating may be used as well. With the sizing of wing nuts, the decision often comes down to nominal thread diameters. By following a standard list of diameters that range from M3 to M20, one can ensure that they procure a fastener that has the pitch, body height, wing width, and overall height that is necessary for the application in question.
With the properties and capabilities of wing nuts, coupled with their installation method, such fastener types are primarily used in applications that do not require a high amount of torque. They are also useful in assemblies where frequent disassembly and assembly may occur. As a result, common applications include fastening furniture, bicycles, car batteries, marine accessories, and more.
If you are in the market for top-quality aircraft fasteners, hardware fasteners, and other forms of hardware, we have you covered here on Simplified Purchasing. Currently, customers can peruse over 2 billion new, used, obsolete, and hard-to-find parts that are ready for purchase at any time, and our RFQ service will ensure that you can receive customized quotes for your comparisons before you make a decision. As our team members are available around the clock, you can give us a call or email at any time, and we would be more than happy to assist you however we can! 

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Propeller blades are similar to aircraft wings, with cambered and flat sides, chord lines that run throughout the blade length, and leading & trailing edges. Aircraft propulsion generated by rotating propellers requires the use of a highly complicated mechanism since the propeller takes on the features of a rotating wing. There are differential aerodynamic properties between the top and bottom of the propeller blades. Propeller blades tend to be long and thin, and because of their rotation, the speed of the blade tips tends to be faster than that of the near-hub sections. Consequently, analyzing the differential airflow generated around the rotating blades becomes difficult. This blog aims to deconstruct the complex working mechanism of propeller propulsion into a more simplified explanation for ease of understanding. 

Factors That Determine Propeller Thrust Complexity

Although aircraft propellers work like a regular screw, the movement of the propeller blades in a continuous airstream compared to the action of a screw in a solid medium makes all the difference in terms of their working principles. Since the propeller blades are twisted at an angle, they experience drag while rotating in the airstream. The amount of propeller drag is proportional to the degree of the angle and twist in the blades. Another differentiating geometrical parameter between propellers and screws is that pitch characterizes the propeller design. Propeller pitch can be defined as the distance that a rotating propeller can move in the forward direction through a soft solid in one revolution. Propeller wings are designed like airfoil wings, which sport an angle of attack with the horizontal axis of the wing, and they generate lift when accelerating air downward because of their backward tilt. However, when two airfoil-like blades such as these are attached to a central hub, they produce a combined "screwing" effect to push the aircraft forward at the appropriate speed instead of delivering the desired lift.

Since aircraft propeller speed is different at varying sections along the blade length, the angle of attack of each section has an independent value to generate uniform thrust. Thus, the angle of attack is most prominent near the center of the assembly where the blade's speed is slowest, and it is the smallest at the tips where the blade's speed is the highest. Due to the difference in the angles of attack, there is an apparent twist in the blade to correct the differential thrust it might experience.

The Dynamics Between Propeller Thrust and Aircraft Acceleration

Propellers are intended to use the engine's horsepower to generate linear thrust, with the rotating shaft acting as the intermediary which transfers that power. The aircraft will enter accelerated motion if the propeller's thrust is greater than the drag it experiences. Although increasing the number of revolutions per minute (RPM) of the propeller and the engine's power can increase the aircraft's acceleration, there will be a simultaneous decrease in thrust. Research suggests that at low airspeeds, propeller efficiency is extremely low, and it rises with an increase in airspeed until a maximum peak is achieved around 85-87% efficiency, especially in the case of fixed pitch propellers. Beyond this point, the efficiency starts to decline, and this airspeed-to-efficiency relationship is known as the Maximum Efficiency Envelope.

The Association Between Propeller Types and Thrust

Fixed-pitch propellers are the simplest type of aircraft propellers as the blades are fixed at a particular angle in relation to the central hub. They are primarily used in training aircraft because of their simplicity. When the blades have a shallow angle in the incident airstream, the propeller experiences less drag and greater thrust by spinning faster, especially at the time of takeoff. However, since fixed-pitch propellers are designed to be efficient only during ascent or takeoff, they are destined to be much less efficient while they are airborne. 

On the other hand, variable pitch propellers are designed to improve the mechanical simplicity of fixed pitch propellers. Variable pitch propellers can work over various airspeeds and engine power settings. This convenient feature was readily exploited in fighter planes used in World War II. The propeller blades were designed to reach a shallow angle to have the chord line parallel with oncoming air, following a phenomenon called "feathering" so that the drag experienced by the plane could be reduced in the event of an engine failure. Moreover, variable pitch propellers are designed so that the path traversed by the blade tip is helical. At the same time, the net velocity results from the rotational and translational velocity vectors experienced by the rotating blade, those of which are also dubbed as "helical tip" velocities. Thus, the pilot can adjust variable pitch propellers, either on the ground or when airborne, to adapt to different airspeeds and altitudes.

To Sum Up

We at Simplified Purchasing are always glad to help professionals in the aviation sector source the best propellers, along with any other top-quality aircraft parts, through our user-friendly and efficient digital platform. Our website features an expansive inventory of over 2 billion new, obsolete, and elusive aircraft parts sourced from top manufacturers and tested according to the most stringent quality standards. You can search for the part of your choice through the relevant filters on our website’s search engine that is bolstered by our proprietary software connecting manufacturers and distributors. Get started by requesting a quote through the Instant RFQ service available on our website and one of our dedicated sales reps will respond to your submission within 15 minutes or less.

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A fastener is a device used to mechanically connect two objects. Examples include screws, nails, nuts, bolts, washers, anchors, and rivets. They are not permanent in that they can be unscrewed, loosened, and taken apart. The advantage of fastening two objects together rather than welding them is that the separate components can be replaced and maintained more easily. Different fasteners provide different amounts of strength, but there is also more to consider when purchasing fasteners for varying applications.
Nylon fasteners are an example of nylon hardware, which is made from plastic materials such as polyvinyl chloride or PVC, acetal, and polypropylene. Nylon hardware in the form of screws, nuts, bolts, washers, and other fastening devices has become increasingly popular due to its ability to insulate and resist corrosion. Since nylon is a non-conductor, nylon fasteners do not conduct nor waste electricity. Corrosion particularly plagues metal fasteners by quickly wearing them down so corrosion-resistant materials are in high demand. Without metal fasteners, machines may function longer without falling apart or needing repairs.
 Additionally, nylon is lightweight compared to metal yet still highly durable, and many manufacturers enjoy the large selection of product designs. In aerospace technology, nylon hardware reduces aircraft weight and reduces fuel usage. As the appeal around nylon hardware grows, it is important to consider the limitations of nylon fasteners across different industries.
While nylon fasteners are durable, they are not strong enough to withstand the demanding functions of many engineering projects, such as construction. Additionally, nylon fasteners should not be used in a circumstance where they risk getting wet because they are hygroscopic. This means that they easily take in water from the surrounding environment, which causes them to swell and eventually deteriorate. Another major drawback of using nylon fasteners in any project is that they cannot withstand temperatures higher than 121 degrees Celsius. In general, this means that metal fasteners should be used for any device that requires heating during use; however some nylon materials, such as Nylatron, function well in high heats. Lastly, nylon is very vulnerable to chemicals and UV rays, meaning these fasteners should not be used in environments with excessive sun exposure.
Within aerospace technology, users can benefit from the low costs and high variety associated with nylon hardware by purchasing nylon washers and fasteners for air frames, engine parts, hydraulics, landing gears, and a few other aspects of aircraft. For parts of aircraft that function continuously, nylon fasteners may be a better option than metal fasteners because their lighter weight allows them to endure more movement while holding two pieces of machinery together. Nylon fasteners have some drawbacks, but they should be considered for use in many parts of aerospace technologies as they are highly customizable and can significantly reduce costs.
Simplified Purchasing is an online distributor of aviation parts that is owned and operated by ASAP Semiconductor. We have an extensive supply chain network of AS9120B, ISO 9001:2015, and FAA AC 0056B accredited manufacturers and distributors, specializing in aircraft rotables, consumables, and ground support equipment. We aim to make your projects as simple and efficient as possible so reach out to our staff with any questions at any time 24x7/365. Fill out an RFQ today and we will respond as soon as possible!

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A shaft bearing is a common mechanical component, often placed within assemblies to bear applied loads while facilitating the rotational or sliding movement between parts. With their general, yet important, role, shaft bearings commonly find use in a wide variety of applications ranging from industrial machinery to aerospace vehicles. To accommodate a diverse set of industries and needs, shaft bearings come in various types and designs, each varying in its qualities and characteristics.
The plain bearing is one of the most common forms of shaft bearing, coming in the form of a simplistic, low cost element that features a cylindrical sleeve and internal shaft. The sleeve is generally constructed from a low friction material, that of which may be graphite, bronze, or plastic. The low friction material is crucial for the functionality of the shaft, allowing it to rotate within the sleeve. For more basic designs, plain bearing components are most often implemented within mechanical applications where ample lubrication and high tolerances are not necessary. Despite this, plain bearings often wear over time as a result of the surface contact between the sleeve’s inner diameter and shaft outer diameter, reducing the overall service life of such components.
Alongside plain bearings, rolling-element bearings are also quite commonplace. A rolling bearing is generally more complex than a plain bearing, featuring spheres or small cylinders that roll between races for the means of taking on loads, reducing friction, and permitting tighter mechanical tolerances. All rolling-element bearings consist of three primary components, those of which are the inner race, outer race, and rolling mechanical components placed between each. The ball bearing is a subtype of rolling-element bearing, featuring spheres between races that mitigate friction. For other types, the rolling elements may be less spherical as various cylindrical shaped rollers are common.
Depending on the environment that a shaft bearing will operate in, there are various accessories that one may take advantage of. For instance, contamination may be a concern in some installations, posing a risk to the health, performance, and lifespan of bearings. Through the use of seals and shields, internal components can be guarded as necessary. The size of the bearing itself is also an important aspect to consider as there is a wide variety of sizes that are in standard and metric values. Generally, one should always take into account operational speeds, lubrication requirements, size, weight, costs, safety, applied loads, bearing surface values, and much more.
If one requires a more robust option for an aircraft or automotive assembly, a high precision shaft bearing will often provide for increased reliability and extended service intervals. Nevertheless, such quality bearings will often be more expensive than their standard counterparts, making the choice a balance between requirements and cost. Regardless of whether you are searching for new bearings, replacement components, or are simply viewing the market, there is no better sourcing solution than Simplified Purchasing.
Simplified Purchasing is a website owned and operated by ASAP Semiconductor, and we offer customers access to over 2 billion new, used, obsolete, and hard-to-find products that have been sourced from leading global manufacturers that we trust. Take the time to explore our expansive set of offerings as you see fit, and our team is always ready to assist you with customized quotes for your comparisons and unmatched lead times. Even if you are facing a time constraint and need parts fast, we can expedite the shipping process using our expansive supply chain network stretching across the United States, Canada, and the United Kingdom. Experience the future of part procurement today with Simplified Purchasing when you get in touch with one of our representatives. 

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In general, bearings are specialized components that assist an object’s rotation. Typically supporting the shaft that rotates inside machinery, bearings are found in automobiles, aircraft, electric generators, and more. As they find countless uses, bearings are available in varying types, one of which is called a rolling bearing.
Rolling bearings, or roller bearings, are utilized to replace sliding movement with low friction, such as aiding in rolling motions observed in rotary applications. The principle subtypes of this category of bearings include cylindrical, spherical, tapered, and needle roller variations. Before getting into each type’s distinctions, we will cover their design.
Consisting of two rings, rolling elements, and a cage, roller bearings are usually classified as radial bearings or thrust bearings, depending on the direction of the main load. Additionally, they can be further classified by the type of rolling element used, whether that be  balls or rolling elements. Nonetheless, roller bearings of any type are designed with advantageous characteristics.
When compared with plain bearings or other types, rolling bearings offer many advantages, the first being that their starting torque and friction are low while the starting torque and running torque are small. Furthermore, with the onset of worldwide standardization, rolling bearings are internationally available, and interchangeable.
Other advantages include that their maintenance, replacement, and inspection are straightforward processes as the structure of the rolling bearings is simple. More than that, a majority of rolling bearings have the ability to handle radial and axial loads simultaneously or independently. Lastly, they can be utilized under a wide range of temperatures, and they can be preloaded to produce a negative clearance, achieving greater rigidity.
Cylindrical Roller Bearings
This type of rolling bearing is equipped with the ability to handle high radial-loads and moderate thrust loads. They contain cylindrically-shaped rollers that are either crowned or end-relieved to reduce stress concentrations. They are similar to needle roller bearings with the exception that the dimensions of diameter and roller length are closer in magnitude.
Spherical Roller Bearings
Self-aligning in nature and double-row in design, spherical roller bearings are considered combination radial and thrust bearings. These bearings utilize barrel-shaped or crown-shaped rollers that are situated between the inner ring. The inner ring itself has two raceways, while the outer ring has one spherical raceway. It is important to note that spherical roller bearings can handle heavy radial loads and some axial loads in either direction.
Tapered Roller Bearings
Tapered roller bearings consist of an inner ring (cone), outer ring (cup), cage, and rollers. It is important to keep in mind that the cage and rollers can be profiled to distribute loads evenly across the roller. During operation, tapered roller bearings create a line of contact between the rolling element and the raceway, distributing loads across a larger surface area. Depending on the contact angle, they can be subdivided into three types, those of which include normal angle, medium angle, and steep angle variations.
Needle Roller Bearings
The last type of rolling bearings are of the needle roller variety. They are considered a type of cylindrical roller bearing where the length of the roller is much larger than the diameter. In particular, needle roller bearings are designed for radial load applications where a low profile is desired. There are numerous types of needle roller bearings, some of which have no inner rings or cages. As such, one must be well aware of their application’s requirements prior to making a rolling bearing purchase.
If you find yourself in need of rolling bearings, radial bearing assemblies, radial bearing shoes, or other related components, rely on Simplified Purchasing. Simplified Purchasing is an online distributor of electronic parts, aviation products, NSN components, and more. With an inventory of over 2 billion ready-to-purchase items, customers can find everything they need with ease. Get started with a competitive quote which you can request through our Instant RFQ service, and let Simplified Purchasing fulfill your operational requirements today!

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When it comes to any vehicle including an aircraft, securing hardware is a primary task that needs to be done for safety. Loose hardware wiring can be a cause of tragic accidents and threaten many lives. As a result, it is crucial to secure the aircraft’s bolts and fasteners with safety wires to prevent accidents. Furthermore, one should always check such assemblies often to confirm whether they are tight and ready before take-off.

What Is Safety Wiring or Wire Locking?
Safety wiring, or locking wire, is a tool that ensures the structure stability of an aircraft. It typically comes in the form of a 0.32-inch stainless steel or nickel alloy wire used for locking the mechanisms of bolts and nuts that might get loose as a result of vibration or jerks during flight. Safety wiring is used as a method to hold parts like nuts and bolts together with other fasteners or studs so that an aircraft’s mechanisms will be safe and secured.
A wire can be passed through the nut’s hole before being tied clockwise, and another end is linked with the aircraft structure to avoid serious mechanical failures. This is usually done in vibration-prone areas on an aircraft where nuts and bolts are locked with two or more fasteners, ensuring safety.

An aircraft’s wireframe can dislodge overtime due to vibration, and even small objects can cause catastrophic results when loosening occurs. In such instances, the technician’s job is to ensure the safety of onboard passengers while checking that hardware locks properly.

Why Is Safety Wiring important?
An aircraft contains fragile technology that operates in harsh environments during flight. While taking-off and landing, the constant vibration creates strain on the aircraft’s wireframe. During these events, if any bolt or screw becomes loose during flight, it can wear down the aircraft structure and pose a safety hazard. Locking wire components are important to secure fasteners on an aircraft during flight for safety.

Safety wiring is also known as ‘positive wire locking,’ that of which holds the aircraft and its many parts together. It is necessary for the technician to properly check all the wireframes connected with the aircraft structure and ensure safety as well. It is also a technician’s responsibility to ensure the integrity of an aircraft during flight so that it is not compromised. They do this by installing fail-safe devices, such as safety wires, to prevent components from coming off due to pressure imposed upon them by external factors like wind gusts, temperature change, and strain from take-off and landing.

How Does Safety Wiring Work?
The foremost purpose of safety wires is to tighten wireframes and fasteners. The wiring of these nuts and bolts can be done with two or more fasteners to ensure safety for a longer period of time. The clever use of stainless-steel wires in aircraft manufacturing has been a main component of the industry’s success for more than 50 years. The first step of installing wiring involves drilling a whole into a fastener. Then, twisted strands that are anchored on another piece are threaded before being doubled back around themselves again with varying degrees between 0–45 degrees, depending on the tightness required.

This process allows assemblies to hold their shape after being bent outwards, protecting against the loosening of screws while resisting slipping due to the strain created as a result of removing parts from machines, leading to less downtime spent servicing equipment. Safety wires are used to replace worn-out fasteners as well as maintain the shape of aircraft. After each application, ensure that you dispose of the old wire and install a fresh wire for the next flight. Maintenance of safety wires includes making sure the diameter and thickness are compatible with each other. Additionally, the most common sizes of a wire is 0.032-inch and 0.041-inch options which can be used as per requirements; for example, forholding larger screws in place, you will need a thick wire.

You can never be too careful when performing owner-performed maintenance. If in doubt, ask for the advice of other sources, like mechanics or aviation enthusiasts, who can underline any mistake before it gets too late. You can also call your local FAA Flight Standards District Office inspector for help – they will be happy to help you!

Simplified Purchasing is a leading distributor of FAA-approved aviation components, aircraft engine mounts, aircraft bearing components, and NSN parts. Get access to a huge collection of top quality NSN components when you call us today. 

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Bearings are specialized mechanical elements that assist objects’ rotation while simultaneously reducing friction between moving parts. Thin section bearings are a type of standard bearing, but differentiate themselves in their subtle cross sections, making them highly sensitive to shaft and housing tolerances. As such, using them in assemblies should be done with care, and finding the proper bearing for your applications is paramount.

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