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1 Bearings with different load capacities have different load limits, which refers to the maximum weight they can withstand. When purchasing bearings, the first thing to consider is how much pressure the equipment will generate during operation. If the selected bearing has a load capacity lower than the actual demand, it will cause premature wear or even rupture. 2 The speed of the bearing is another important factor that must be considered. Different types of bearings have their own maximum speeds. Exceeding this speed may cause increased friction, temperature rise, and even equipment failure. If your equipment runs at a high speed, then make sure that the selected bearing can cope with this speed requirement. 3 Temperature adaptability. Many equipment will generate heat during operation, and the materials and lubricants of bearings have different adaptability to temperature. Too high or too low temperatures may affect the performance and life of the bearing. When selecting, make sure that the bearing can operate stably within your operating temperature range. 4 Accuracy requirements For some precision instruments and equipment, the accuracy requirements of the bearings are very high. In this case, it is necessary to select high-precision bearings, otherwise it will affect the accuracy of the equipment, and thus affect production efficiency and product quality. 5. Material and environmental adaptability. Bearings are made of a variety of materials, including steel, stainless steel, ceramics, etc. According to the working environment of your equipment, such as whether there is humidity, whether there are corrosive substances, and whether it is exposed to a strong magnetic field, choosing a bearing that is suitable for the material is also a key step. In summary, bearing selection is a process that requires multi-faceted considerations and cannot be determined by only one or two indicators. Load capacity, speed, temperature adaptability, precision requirements, and environmental adaptability are all important factors that you need to consider comprehensively when purchasing bearings. Remember, only by choosing the right bearing can your equipment perform robustly and reliably under various operating conditions. Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)

Bearings are an indispensable part of mechanical equipment, and their accuracy directly affects the performance and life of the machinery. Bearings of different accuracy are suitable for different use environments, and choosing the right bearing is crucial to ensure the efficiency of equipment operation. Low-precision bearings are usually used in occasions where speed and accuracy are not required, such as agricultural machinery, construction machinery, etc. These bearings are low-cost, simple to maintain, and can meet basic operating needs. However, in applications with high-speed rotation or high-precision positioning, low-precision bearings are not competent. Medium-precision bearings are mostly used in general industrial fields such as household appliances and office equipment. These bearings can provide stable performance under medium loads while maintaining a reasonable cost. They are suitable for applications that do not require extreme accuracy but require certain reliability and durability. High-precision bearings are widely used in precision instruments, aerospace, high-speed machine tools and other fields. These bearings have extremely high dimensional accuracy and shape accuracy, which can ensure the stability and accuracy of the machinery when it is running at high speed. Although high-precision bearings are expensive, the performance improvement and long-term benefits they bring are often worth the investment. Ultra-high precision bearings are mainly used in scientific research equipment and high-end manufacturing industries, such as astronomical telescopes and semiconductor manufacturing equipment. This type of bearing not only requires extremely high precision, but also must have excellent wear resistance and long life to adapt to extreme working conditions and environments. When selecting bearings, the needs of the use environment should be fully considered, including load size, speed requirements, temperature changes, lubrication conditions and other factors. The right choice can extend the service life of the equipment, improve production efficiency and reduce maintenance costs. Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)

The bearings frequently make abnormal noises, but after disassembling the motor, the bearings look "flawless", but cement dust accumulates on the bearing seal lip, and the grease has already hardened into a block. What kind of neglected precision logic is hidden behind this?Mr. Wang of a power tool factory in Henan Province has been having a headache recently. The impact wrenches they produce have to replace the bearings every three months on average on the construction site, which has led to a surge in customer complaints. Mr. Wang found us after being introduced. After communication, Mr. Wang sent the damaged bearings. When we disassembled the bearings, we found that cement dust accumulated on the bearing seal lip, and the grease had already hardened into a block. It's like running in a sandstorm while wearing a gauze mask, which can't block the tiny concrete particles at all. The problem was found, and the technicians of Kenda Bearing customized a special bearing for Mr. Wang. Not only did they change the sealing structure of the bearing, but they also replaced the more suitable bearing grease. The first batch of 200 impact wrenches replaced with our customized bearing installations, after 8 months of actual use on the construction site, 92% of the equipment still operated normally. Mr. Wang said: "This year, we can save more than 400,000 yuan in after-sales labor costs. I will choose Kenda bearings in the future." Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)

    Bearings, as the "heart" of mechanical equipment, directly determine the performance and lifespan of the entire system. Lubricating oil is a critical factor in ensuring their normal operation. But why must we use a measured quantity of lubricant? This involves a complex science!     Firstly, the primary role of lubricating oil is to reduce friction and wear, lower energy consumption, and extend bearing life. However, more lubricant does not equate to better performance. Insufficient lubrication increases friction, raises temperatures, and accelerates bearing damage. Conversely, excessive lubrication not only wastes resources but may also cause seal failure and system contamination. Therefore, precision lubrication is key to ensuring efficient bearing operation.     At this point, some might ask: "How do we determine the optimal quantity?" This truly requires expertise. Generally, factors like bearing type, operating environment, rotational speed, and load conditions must be considere. For instance, Kent's production lines are equipped with ‌automated precision lubrication systems‌ that adjust oil delivery in real-time based on preset parameters and monitored data. Notably, Kent's open-type motor bearings (non-grease-containing) are pre-lubricated with double-sided grease during manufacturing, eliminating the need for additional maintenance during use. This approach minimizes human error and avoids issues caused by improper lubrication.     Some may believe "it's safer to add extra lubricant." However, over-lubrication increases bearing temperatures, disrupts seals, and may trigger lubrication system failures—leading to costly downtime and repairs. Proper lubrication not only extends bearing lifespan but also enhances overall equipment efficiency and reliability.          ‌    Ningbo Kent Bearings‌ is a company dedicated to the research, development, and manufacturing of high-precision, low-noise ball bearings, with extensive experience in bearing production and sales. Our products are widely used in motors, automotive systems, household appliances, power tools, and other fields. Upholding our philosophy of ‌"Authentic Quality for Lasting Performance, Quieter Rotation for Your Machinery,"‌ we have earned widespread acclaim from our customers. If you have any needs, please feel free to contact us. (Part of the data in this text is sourced from publicly available information for educational and informational purposes. Should any issues arise, please promptly contact us for removal.)

"The quality of your bearings is unstable!" When Mr. Hu, a technical service engineer of our company, received a call from Mr. Zhang, the purchasing manager of a motor factory, he felt a little uneasy.The ZV3 grade motor bearings that the customer had just accepted three weeks ago had abnormal noise problems after batch delivery. Mr. Hu rushed to the customer's factory with testing equipment that day. After a series of inspections, Mr. Hu found that the clearance between the motor bearing and the motor housing was obviously abnormal.It turned out that the customer felt that the bearing installation was laborious during the trial production, so he enlarged the inner diameter of the motor housing a little. It was this change that caused the radial clearance of the motor bearing to be too large during operation, and the collision between the steel ball and the raceway produced abnormal noise. "It's like walking in shoes that are two sizes larger. The bearings "dangle" in the loose housing, and the life span is shortened by at least 60%." Mr. Hu explained while measuring the deformed housing with a vernier caliper.In the end, we not only reworked 2,000 sets of motor bearings for free, but also assisted in adjusting the parameters of the later bearings. Now the unqualified rate of the motor has dropped from 23% to 0.5%. Kent Bearing reminds all motor manufacturers: seemingly simple size matching is the result of precise calculation of more than 20 parameters such as material thermal expansion coefficient and assembly stress distribution. Choosing a professional bearing manufacturer can save time and effort, reduce costs and increase efficiency. Kent Bearing always practices the concept of "technical pre-service" and provides customers with value-added services such as matching tolerance calculation and installation guidance for free. You only need to make a phone call +86 19957426729 (Whatsapp), and we will escort your product upgrade throughout the process.

Deep groove ball bearings consist of an inner ring, an outer ring, rolling elements (steel balls) and a cage, with a simple and compact structure. Its working principle is based on the physical property that rolling friction is much smaller than sliding friction. The friction resistance is reduced by rolling the steel balls between the inner and outer rings to achieve efficient transmission.In reducers, deep groove ball bearings play a key role. As an important transmission component connecting the prime mover with the working machine or actuator, the reducer needs to accurately match the speed and transmit torque. Deep groove ball bearings ensure the smooth operation of various components inside the reducer with their excellent load-bearing capacity and high-speed rotation ability.                                                   The application of deep groove ball bearings in reducers brings many advantages. It significantly reduces internal friction, improves transmission efficiency, and makes the reducer more energy-saving and efficient. At the same time, its good radial and axial load-bearing capacity enables the reducer to withstand greater loads and enhances the stability and reliability of the equipment.                                                   In addition, the installation and maintenance of deep groove ball bearings are relatively simple, which reduces the maintenance cost and downtime of the equipment. However, the application of deep groove ball bearings in reducers also faces some challenges. For example, under high load or extreme working conditions, the bearing may be subjected to a large impact force, which will affect its service life. Therefore, when selecting bearings, it is necessary to make reasonable selections according to specific working conditions and load requirements. In general, deep groove ball bearings have been widely used in the field of reducers due to their simple structure, strong load-bearing capacity, and high speed. With the continuous advancement of technology and the improvement of manufacturing processes, deep groove ball bearings will play a more important role in reducers, providing strong guarantees for the efficient and stable operation of mechanical equipment. Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)

Kent Bearings once provided ZV3 grade sample bearings to a company that focuses on the development of robot motors. The company found that the efficiency of its new motors could not meet the design standards during the test process. It was suspected that there was a problem with the deep groove ball bearing at the front end of the motor, so it was fed back to us. Through precision instrument testing, we found that the friction resistance of the motor bearing was too large, which led to increased motor energy consumption. After in-depth analysis of the reasons, it turned out that the manufacturer did not fully consider the working conditions of the motor's high-speed operation when selecting the bearing, resulting in insufficient lubrication performance of the deep groove ball bearings we provided, and unreasonable sealing structure, resulting in rapid loss of grease, and the bearing was in a dry friction state. At the same time, the manufacturing accuracy of the bearing could not meet the rotation requirements of the motor at high speed. We customized a ZV4 grade deep groove ball bearing with a special lubrication coating and an efficient sealing structure, and optimized the clearance between the bearing and the shaft. After the transformation, the motor efficiency increased by 8%. Kent Bearing specializes in producing high-quality, high-precision deep groove ball bearings. The products have the characteristics of long life, high precision and low noise. They are widely used in motors, household appliances, power tools, garden tools, fitness equipment, water pumps, mechanical equipment and other fields. Kenda Bearing Co., Ltd. is willing to work with you to create greater glory! Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)

Ⅰ. Preparation before installationCheck the bearings and accessoriesConfirm that the bearing model and size match the equipment.Check whether the bearing seat, seal ring, and fasteners are intact and free of damage or rust. Clean the bearing seat hole and shaft surface to remove burrs, oil stains or impurities.Lubrication: Spherical bearings are usually pre-installed with grease (such as lithium-based grease). If refilling is required, add according to the instructions (generally fill 1/3~1/2 of the internal space of the bearing).Tool preparation: rubber hammer/soft copper hammer, hydraulic press (if press-fitting is required), torque wrench, heating equipment (for hot fitting). Ⅱ. Installation steps 1. Install the bearing on the shaftCold installation method (common)Align the inner ring of the bearing with the shaft neck, tap the inner ring of the bearing with a hammer (do not directly hit the outer ring or seal, or use a press to apply pressure evenly to ensure that the bearing is pressed into the shaft neck in parallel to the designed position.Hot installation method (when the interference is large)Heat the bearing to 80~100℃ (oil bath or induction heating), quickly insert it into the shaft neck, and tighten it after cooling. 2. Fix the bearingLocking methodTop screw fixing (common): Use an inner hexagon wrench to tighten the top screw on the inner ring of the bearing and press the plane on the shaft (make sure there is a matching plane on the shaft).Eccentric sleeve fixing: Put the eccentric sleeve on the shaft, rotate the eccentric sleeve to lock it, and then fix it with bolts.Fixed sleeve fixing: Adjust the bearing position and lock it with the adapter sleeve and nut. 3. Install the bearing seatInstall the bearing into the bearing seat, making sure the outer spherical surface fits the seat hole.Fix the bearing seat to the equipment base with bolts, tighten the bolts step by step in diagonal order to avoid deflection. 4. Adjustment and sealingClearance check: Manually rotate the bearing to ensure there is no sticking or abnormal sound.Seal confirmation: Check whether the seal is in place to prevent dust or liquid intrusion. Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)

A manufacturer of air-conditioning compressor motors had a large number of bearing failures during the warranty period, leading to customer complaints. They came to us, hoping that we could solve their bearing problems. After understanding the specific situation, the home appliance manufacturer sent the faulty motor to us.After disassembling and testing the faulty motor, we found that the inner and outer rings of the deep groove ball bearings were severely worn, the raceway surface was rough and uneven, and the grease inside the bearing had dried up and deteriorated. It was learned that in pursuit of production efficiency, the company improperly installed the bearings during the motor assembly process, resulting in damage to the internal structure of the bearing. At the same time, the selected bearing grease has poor stability in high temperature environments and cannot meet the lubrication needs of the motor for a long time.We provide manufacturers with high-temperature resistant and long-life deep groove ball bearings, equipped with special bearing grease. In addition, we also guide companies to improve the bearing installation process. After the improvement, the average service life of motor bearings has doubled, and the company's after-sales department reported that the number of customer complaints has been greatly reduced, affirming our professionalism.KENTBEARING Kenda Bearing is a company focusing on the research and manufacture of high-precision, low-noise ball bearings. We provide products for many industries and are long-term partners of our customers. Currently, Kenda bearings are widely used in motors, household appliances, power tools, garden tools, fitness equipment, water pumps, mechanical equipment and other fields. If you have any bearing problems, Ningbo will contact Kenda. Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)

Radial spherical plain bearings have an inner ring with a sphered convex outside diameter and an outer ring with a correspondingly sphered but concave inside surface.                                                                         The radial spherical plain bearing is a sliding bearing that can rotate and swing at any angle. It consists of an inner ring, an outer ring and a spherical sliding surface. It is suitable for occasions that bear radial loads and smaller axial loads.The working principle of the radial spherical plain bearing is to use the spherical sliding surface to produce a self-alignment effect when rotating and swinging, so as to ensure that there is always a point contact between the inner and outer rings. This can avoid stress concentration and wear caused by inaccurate installation or shaft bending.                             Advantages:It can adjust the angle within a large range, improving the flexibility and reliability of mechanical operation. Generally, the radial spherical plain bearing can adjust the angle between 15° and 30°. This can adapt to various installation errors, deformations, deviations, etc. .It can work at higher speeds because the spherical sliding surface has good lubrication conditions and low friction coefficients. Generally, the radial spherical plain bearing can reach more than 1,000 revolutions per minute.It can work under conditions of large temperature changes or large temperature differences because it has good thermal stability and fatigue resistance. Generally, the radial spherical plain bearing can work normally between -40℃ and +150℃.It can work in harsh environments because it has good dustproof, waterproof, anti-corrosion and other properties. Generally, radial spherical plain bearings can use sealing structures or special materials to prevent dust, moisture, acid and alkali from entering. Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)

The bearing retainer has the functions of guiding the movement of rolling elements, improving the lubrication conditions inside the bearing, and preventing the rolling elements from falling off. We have introduced a lot of knowledge about bearing retainers in previous articles. I believe that everyone also knows the two terms of solid retainers and stamped retainers. What is the difference between them?                                            Ⅰ. The difference between solid retainers and stamped retainers1. Different manufacturing processesSolid retainers: Solid retainers are also called machined retainers. They are made by melting and processing some retainer materials specified in the bearing code, usually including metal melting, pocket hole processing, perforation processing, and grinding processes.Stamped retainers: Stamped retainers are a manufacturing process that uses various presses with various shapes of molds to press metal materials or non-metallic materials in a cold state to produce plastic deformation or separation, thereby forming a specific size and shape. Stamping can be divided into several processes: blanking, bending, calendering, forming, three-dimensional pressing or extrusion.                                 Ⅱ. Different materials usedSolid cages: steel, copper, polyamide (nylon 66). At present, solid cages are mainly made of non-metallic materials, among which polyamide has better sliding and self-lubricating properties, but its high temperature resistance is not as good as that of steel and copper solid cages. Stamped cages: Stamped cages are often made of steel plates, and sometimes copper plates. Stamped cages are lighter than metal solid cages.The above is the difference between solid cages and stamped cages. Let's take a closer look at the classification and characteristics of bearing cages.1. Steel cages are divided into stamped and solid. This type of cage has high strength and light material. It is mostly used for deep groove ball bearings, strip roller bearings and most tapered roller bearings. It is generally not affected by the mineral oil machine or alkali oil machine lubricant of rolling bearings. The cage operating temperature can reach 300 degrees Celsius, but it is easily affected by water and water vapor and rusts.2. Brass bearing cages have high tensile strength and mechanical strength comparable to steel plate stamping cages, but the density is relatively small and the limit speed is high. It is not affected by lubricants, including synthetic oils and greases. Brass cages cannot be used in places above 300 degrees Celsius, and are not suitable for ammonia, such as cooling, because ammonia will cause seasonal breakage of brass. The operating temperature must be below 300 degrees Celsius.3. Nylon bearing cages. Nylon materials are highly elastic and lightweight, with very good sliding and self-lubricating properties. They are particularly suitable for situations with vibration impact hard force or high acceleration and deceleration or when the inner and outer rings of the bearing are tilted against each other. The operating temperature is -40-120 degrees. Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)

In the field of modern mechanical engineering, precision bearings play a vital role. They are like the precision valves in the heart of a machine. Although small, they are of great importance. With their excellent performance, they ensure the stable and efficient operation of various high-end equipment. Precision bearings refer to bearings that have achieved micron-level or even nanometer-level precision requirements through precision machining. They are usually used in high-precision equipment with strict requirements on speed, temperature, vibration, load, etc., such as aerospace, precision instruments, medical equipment and high-speed machine tools. The main characteristics of precision bearings include: high hardness and wear resistance, micron-level dimensional accuracy, high surface finish, extremely low friction, good vibration and noise control. Precision machining standards The machining standards of precision bearings are usually based on international standards such as ISO:492 (bearing tolerances) and ISO:281 (bearing life). The precision requirements usually include:(1) Dimensional tolerance: usually requires tolerances to reach the micron level or even sub-micron level.(2) Geometric accuracy: The raceways, rolling elements and cages of the bearings are required to have extremely high geometric accuracy to reduce friction and heat during operation.(3) Surface roughness: The surface roughness requirement of precision bearings is extremely low, usually Ra ≤ 0.01 µm.(4) Heat treatment and surface hardening: Bearing materials need to undergo precise heat treatment processes to ensure sufficient strength and wear resistance, usually through quenching, tempering and other methods. The precision requirements of precision bearings are extremely stringent, and their dimensional tolerances are usually controlled at the micron level. Some high-precision bearings can even reach the submicron level to ensure stable performance under high-speed rotation and extreme environments. In terms of geometric accuracy, components such as raceways, rolling elements and cages are required to have extremely high shape accuracy and position accuracy to reduce friction and vibration. In addition, hardness is also one of the important indicators for measuring the accuracy of precision bearings. Generally, through precise heat treatment processes, the bearing material reaches a suitable hardness range, thereby ensuring the wear resistance and deformation resistance of the bearing under high loads. Contact:19957426729(WhatsApp)     bugao@bgbearing.com(Email)