A sleeve bearing (also known as a bushing bearing or plain bearing) is a straightforward and fundamental type of bearing. It primarily consists of an inner metal sleeve (known as the bushing) and an outer metal sleeve. Between these two sleeves lies a layer of special lubricating material, typically a sliding surface coated with grease or oil.

The high velocity exhaust gases coming from the combustor rotate the turbine used in the micro turbine. The basic principle of working of the micro turbine is that the compressor as well as the electric generator is mounted on the same power shaft as that of the turbine. Because of this the compressor and the generator also rotate with the turbine. The generator rotates with the same speed as that of the turbine and generates the electricity. The electricity is first given to the power conditioning devices and then it is supplied to the required areas. The combustor is supplied with the fuel in the gaseous form by the gas compressor. Also fresh and compressed air is supplied to the combustor by the compressor through the recuperator. Here the recuperator plays an important role of heat exchanger. It absorbs the heat from the hot gases coming from the turbine. Then it gives this heat to the compressed air coming from the compressor. Thus the air supplied to the combustor is hot and compressed. This helps to increase the overall efficiency of the cycle.

Comparison between Microturbine and Piston Engine Microturbine systems have many advantages over reciprocating engine generators, such as higher power density (with respect to footprint and weight), extremely low emissions and few, or just one, moving part. Those designed with foil bearings and air-cooling operate without oil, coolants or other hazardous materials. Microturbines also have the advantage of having the majority of their waste heat contained in their relatively high temperature exhaust, whereas the waste heat of reciprocating engines is split between its exhaust and cooling system. S.no Gas Turbine Steam Turbine 1. In gas turbine the compressor and combustion chamber are the important components. In steam turbine the steam boiler and accessories are the important components. 2. Less space for installation is required. More space for installation is required. 3. The mass of gas turbine per kW produced is less. The mass of the steam turbine per kW produced is more. 4. Less installation and running cost.  More installation and running cost. 5. With the changing load conditions, its control is easy. Its control is difficult, with the changing load condition. 6. The starting of this turbine is easy and quick. The starting of steam turbine is not easy and takes long time. 7. A gas turbine does not depend on water supply. A steam turbine depends upon water supply. 8. Its efficiency is less. Its efficiency is high. Piston engines have reciprocating mechanisms (to and from motion) while microturbine engines have rotary mechanisms. Both use the air as the working fluid, but the flow in microturbine is continuous while reciprocating engines have an intermittent flow. Power to weight ratio of the microturbine engines is much higher than that of reciprocating engines. Microturbine are sophisticated in design and manufacture, while reciprocating engines are simpler in design and easier to manufacture. Maintenance of the reciprocating engines are simpler and has to be performed frequently, while maintenance of the microturbine engines is complex, but the inspection and maintenance occurs at longer intervals. Microturbine engines or its variants are expensive, while reciprocating engines are relatively inexpensive. Microturbine engines power large and powerful aircrafts such as military jet fighters or commercial airliner, but piston engine are being used in smaller and short ranged aircraft.

Mismatched bearings can cause vibrations and noise during operation. These vibrations not only affect the smoothness of machinery but can also lead to structural damage over time.  Additionally, the noise generated can be a sign of misalignment or uneven load distribution, indicating potential issues with the bearing's performance.

Speed ratings define the maximum rotational speed at which a bearings can operate without causing excessive heat generation or premature wear.

Ball bearings are fundamental components used in a wide range of machinery and mechanical systems, enabling smooth and efficient rotational motion while minimizing friction and wear. These ingenious devices consist of an outer and inner ring with a set of balls sandwiched between them. The ball bearing size chart plays a pivotal role in selecting the right bearing for specific applications, ensuring optimal performance and longevity of the equipment.

If a ball bearing is not selected according to the size chart or the specific requirements of the application, several problems can occur:

Bearings clearance is the internal gap between the balls and raceways. It influences the bearing's axial and radial play and thermal expansion characteristics.

Selecting the appropriate bearings is crucial for reliability and performance. As an outstanding bearing supplier from Taiwan, we deeply understand this importance. Through the comprehensive information provided on our webpage, engineers and professionals can fully comprehend and utilize these valuable resources to make informed decisions.

Look for bearings with dimensions that match your shaft and housing requirements. The bore diameter, outer diameter, and width should align with your machinery's specifications.

Choosing an incorrect bearing sizes can lead to misalignment and increased friction between the bearing and its housing. This heightened friction can cause rapid wear and deterioration of the bearing components, reducing its lifespan significantly.

The ball bearing size chart is a comprehensive reference guide that displays various dimensions and specifications of ball bearings.

Improperly sized bearings may not dissipate heat effectively.  Excessive heat buildup due to friction can occur, leading to overheating of the bearing and surrounding components.  Elevated temperatures can degrade lubricants, weaken materials, and ultimately result in bearing failure.

Measuring a ball bearing size involves determining the bore diameter, outer diameter, and width of the bearing. These measurements are typically standardized and can be found in the manufacturer's specifications or on the bearing itself. Using calipers or micrometers, you can accurately measure the dimensions and refer to the appropriate size chart for selection.

Bearings that are too small or too large for the application may not distribute loads evenly.  This uneven load distribution can lead to inefficient operation, as the bearing might not handle the applied forces and rotations as intended.  As a result, machinery efficiency can be compromised, leading to decreased overall performance.

Microturbine systems have many advantages over reciprocating engine generators, such as higher power density (with respect to footprint and weight), extremely low emissions and few, or just one, moving part. Those designed with foil bearings and air-cooling operate without oil, coolants or other hazardous materials. Microturbines also have the advantage of having the majority of their waste heat contained in their relatively high temperature exhaust, whereas the waste heat of reciprocating engines is split between its exhaust and cooling system.

Traditional backup generation sets are often considered only as idle assets and can be unreliable when you need them the most. Mission critical facilities require a power generation solution that is more reliable and efficient than what a typical utility can provide. Capstone’s critical power supply portfolio features the world’s only microturbine-powered Uninterruptible Power Source (UPS) solution that delivers the reliability and performance critical facilities require. When operating in “Dual Mode”, microturbines can easily transition from continuous power mode to standby power mode.

How Do Ball Bearings Work? Bearings are often small and unassuming components in a product, yet they are crucial for its proper functioning. Without bearings, many products would fail to operate effectively. But do you know how ball bearings...

Determine the operational conditions and performance requirements of your application, such as load, speed, temperature, and environmental factors.

In this article, we will explore the significance of the common ball bearing size chart and understand how to interpret and utilize it effectively.

Ball bearings are subjected to radial and axial loads during operation. Load ratings in the size chart indicate the maximum load capacity a bearing can handle before experiencing premature failure.

In critical applications such as automotive or aerospace systems, using improperly sized bearings can pose serious safety risks.  Sudden failures due to mismatched bearings can lead to accidents, especially in high-speed or high-load scenarios, endangering both equipment and personnel.

With the use of an anaerobic digester, microturbines are able to cleanly and effectively run on methane gas from landfills, wastewater treatment facilities and food processing facilities, as well as agriculture waste, which is often referred to as “green waste.” Rather than simply venting or flaring the methane gas, microturbines can convert this free fuel to clean and reliable electricity for use at the site or surrounding areas. We can engineer a line of microturbines specifically designed to operate on waste gas fuels.

Electric vehicles are clean and efficient, but limited in the distance they can travel between battery charges. Microturbines are used in hybrid electric vehicle (HEV) applications as a range extender, acting as an onboard battery charger for increased fuel economy, quieter operations, reduced emissions, and higher reliability. Thus, the need for daytime battery charging or battery swapping is eliminated.

Bearings that do not match the application requirements are more prone to premature failure.  Replacing failed bearings and addressing resulting issues can lead to costly downtime in industrial processes, affecting productivity and profitability.

It is commonly referred to as "bearing" in English, while in Taiwan, it is usually called "軸承". The fundamental principle of a bearing involves the placement of rolling elements, such as balls, needles, or rollers, between the inner and outer rings to facilitate smooth rotation of the shaft.

Oil produced from offshore production platforms can be transported to the mainland either by pipeline or by tanker. When a tanker is chosen to transport the oil, it is necessary to accumulate oil in some form of storage tank, such that the oil tanker is not continuously occupied during oil production, and is only needed once sufficient oil has been produced to fill the tanker. FPSO vessels with Natural Gas availability can be used to operate microturbines in combination with a large back-up diesel generator, the turbines also provide ample waste heat for crude heating.

Bearing clearance and tolerance may impact the overall system's performance, so make sure they are suitable for your specific needs.

To avoid these problems, it is crucial to consult the manufacturer's specifications and the appropriate size chart when selecting bearings for any application. Proper selection ensures optimal performance, longevity, and safety of the machinery or system.

We are delighted to offer you professional consulting services. We firmly believe that choosing the right bearings is an indispensable step in building reliable and efficient machinery.       Therefore, we are committed to becoming your most trustworthy partner. Whether you require standardized bearings, custom solutions, or bearings designed for high loads and speeds.

Radial bearings are widely used rolling bearings, and their main function is to support radial loads perpendicular to the axis. When the load is applied perpendicular to the axis of the bearing, radial bearings can provide stable support and reduce friction, thus achieving smooth operation.

Microturbines align perfectly with the needs of the oil and gas industry and are currently used in all phases of oil production including upstream, midstream, and downstream operations in both onshore and offshore applications. Microturbines provide the low operational cost, high availability, and high reliability oil producers need.

Axial bearings are designed to withstand axial forces, which are forces applied along the axis. When the load is applied along the axis of the bearing, it can provide efficient support and reduce friction, thus achieving smooth operation.

Energy efficiency refers to the proper utilization of both electrical energy and thermal energy in the power production process. Microturbines can be easily integrated to capture thermal energy produced from the exhaust to provide a significant economic advantage to end users. Microturbines can achieve overall efficiency levels of up to 80 percent in combined heat and power (CHP) applications and up to 90 percent in combined cooling, heat and power (CCHP) applications.

Needle Bearings (Roller Bearings) are a type of bearing that performs exceptionally well at high speeds. Their rollers are precisely guided by specially shaped, high-rigidity cages with minimal dimensional error. Despite their small cross-section, needle bearings...

The size of a ball bearing is determined by the dimensions of its outer geometry, which includes the diameter of the bearing bore (d), outer diameter (D), nominal width (B), height of the bearing (T), and edge reduction (r). Each bearing has an inner diameter (d), outer diameter (D), and width diameter (B/T). Using calipers or micrometers, you can accurately measure the dimensions and refer to the appropriate size chart for selection.

Microturbines can be used in marine applications to provide onboard auxiliary power or as a range extender for both luxury yachts and commercial vessels. Microturbines can operate on diesel and liquefied natural gas (LNG). The increased use of LNG in onboard marine applications is ideal for microturbines because they can run on the boil-off that naturally occurs with LNG storage, essentially providing free power from a source that would otherwise go to waste. This helps to increase overall efficiency while simultaneously reducing the carbon footprint of the vessel.

The common standard ball bearing sizes vary widely based on the type and application of the bearing. Ball bearings are available in both metric and imperial sizes.

VIRIDIS provide various tailored solutions to suit client’s requirements for gas turbine and microturbine generator systems such as :

Needle roller bearings, are a type of rolling bearing characterized by their slender and elongated needle-shaped rollers. Compared to ball bearings, needle roller bearings have a smaller cross-sectional area and volume but possess higher load-carrying capacity. This makes needle roller bearings excel in applications with limited space, particularly in cases of radial space constraints.

Microturbines are small combustion turbines approximately the size of a refrigerator with outputs of 30kW to 1000kW for a single unit. They evolved from automotive and truck turbochargers, auxiliary power units (APUs) for airplanes, and small jet engines. Most microturbines are comprised of a compressor, combustor, turbine, alternator, recuperator (a device that captures waste heat to improve the efficiency of the compressor stage), and generator.