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High Durability Two batteries power tools drill
2022 / 09 / 06
High Durability Two batteries power tools drill Principle: The working principle of the electric drill is that the motor rotor of the electromagnetic rotary or electromagnetic reciprocating small-capacity motor performs magnetic field cutting and work operation, and the operating device is driven by the transmission mechanism to drive the gear to increase the power of the drill bit, so that the drill bit scrapes the surface of the object and penetrates the object better. Application: 1. Construction and Industry It is widely used in the reinforcement of building beams, slabs, columns, walls, etc., decoration, wall installation, brackets, railings, billboards, air conditioner outdoor units, guide rails, satellite receiver elevators, steel structure workshops, etc. 2. Medical applications (1) Dental: At the beginning of the 20th century, a wall-mounted three-bend dental drill appeared, with a speed of 4000 r/min, and some even reached 10,000 r/min. The rope wheel-driven three-bend dental drill that we are still widely used is its derivative. thing. (2) Otology: Julius Lempert, the father of modern otology, pioneered the use of electric drills for ear surgery in New York in 1938 to treat chronic ear diseases and reduce the incidence of facial nerve damage. But the electric drills of the time were difficult to control and were very noisy. Modern electric and air drills greatly increase the rotational speed and enhance the cutting capacity. The use of fast cutting drills, diamond drills and irrigation-suction systems enables otologists to quickly complete accurate surgical dissections and greatly reduce operating time. 3. Marine flexible rod drill The utility model relates to a new type of marine drilling equipment, which is mainly used for coring and sampling of the bottom layer of the seabed, and exploration of marine geology and minerals. First, it was successfully developed by the F
High quality 23122 spherical roller bearing
2022 / 08 / 18
A spherical roller bearing is a rolling-element bearing that permits rotation with low friction, and permits angular misalignment.Typically these bearings support a rotating shaft in the [bore] of the inner ring that may be misaligned in respect to the outer ring. The misalignment is possible due to the spherical internal shape of the outer ring and spherical rollers. Despite what their name may imply,Spherical roller bearings are not truly spherical in shape. The rolling elements of spherical roller bearings are mainly cylindrical in shape,But have a profile that makes them appear like cylinders that have been slightly over-inflated. Spherical roller bearing used in countless industrial applications, where there are heavy loads, moderate speedsand possibly misalignment.
Shijiazhuang Longshu Ball Bearing Co.,Ltd
2022 / 08 / 09
hijiazhuang Longshu Bearing Co.,Ltd is establish in 2002 and developed foreign trade business in 2015,it is one of the largest domestic and imported bearing manufacturer and distributor integrating the research, development and sales of bearing. We specialize in providing all kinds of bearings, such as Deep Groove Ball Bearing , Tapered Roller Bearings ,Spherical Roller Bearing, Cylindrical Roller Bearing, Angular Contact Bearing ,Pillow Block Bearing & Imported famous brand bearing: SKF, NSK, NTN, TIMKEN, FAG, NACHI, INA, KOYO etc. With more than 15 years` experience,We have a mature research and development group, advanced production line and experienced workers, a strict quality inspection group and a 24-hour online sales group. The company adopts detailed quality control measures to enhance products and services, from forging, heat treatment, lathe, grinding to cleaning and assemble, we all have strictly control on every procedure to assure bearing's best quality of running effect , durable and long-life. We sincerely hope we can create a long-term stable cooperative with more customers. In 2020,the company start transformation produced and sale engine parts,specialized in Engine valve,Hydraulic tappet,Engine bearing and Piston&ring ect. Our products are mainly used for Benz,Land Rover,Audi, BMW,Buick,Volvo, Toyota, Mitsubishi,Ford, Hyundai,Suzuki,Yanmar,Cummins,Komatsu,Daewoo,Hino ect. We're an industry and trade integration company with production,sell and forign trade.We firstly passed the ISO9001:2000 International quality control system authentication in the field. Management:our term has professional staff,and we manage as modern enterprise.Produce:we introduce the newest manufacturing line,and we have all kind of inspection equipment,so we win the best honor of our customers.Our company adheres to the quality policy of "first-class products, thoughtful service, to meet the needs of customers", and the business philosophy of "people-oriented
The use conditions and environmental conditions of spherical roller bearings
2022 / 08 / 01
The use conditions and environmental conditions of spherical roller bearings Correctly grasping the location of the spherical roller bearing in the mechanical device and the conditions of use and environmental conditions are the prerequisites for choosing a suitable spherical roller bearing. For this, it is necessary to obtain the following data and information: (1) Function and structure of mechanical device (2) Where to use spherical roller bearings (3) Spherical roller bearing load (size, direction) (4) Rotation speed (5) Vibration and shock (6) Spherical roller bearing temperature (ambient temperature, temperature rise) (7) Ambient atmosphere (corrosiveness, cleanliness, lubricity) Rigidity of spherical roller bearings The rigidity of a spherical roller bearing is determined by the amount of elastic deformation that occurs when it bears a load. Under normal circumstances, this amount of deformation is very small and can be ignored. However, in some machinery, such as machine tool spindle systems, spherical rollers The static stiffness and dynamic stiffness of the sub-bearing have a great influence on the characteristics of the system. Spherical roller bearings have higher rigidity than ball bearings. Various types of bearings can also improve their rigidity to varying degrees through proper "preloading".
Basic knowledge of cylindrical roller bearings
2022 / 07 / 22
Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the retaining edge of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing has a separable inner ring and outer ring structure. Cylindrical roller bearings with no ribs on the inner ring or outer ring, the inner ring and outer ring can move relative to the axial direction, so it can be used as a free end bearing. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can bear a certain degree of axial load in one direction. Generally, stamping steel cages or solid cages made of copper alloy cars are used. But there is also a part of the use of polyamide forming cage. The rollers of the cylindrical roller bearing are in line contact with the raceway, and the radial load capacity is large. It is not only suitable for bearing heavy loads and impact loads, but also suitable for high-speed rotation. At the same time, it improves the lubrication conditions of the contact area between the roller end face and the rib, and improves the performance of the bearing. Bearing people's WeChat is very worthy of attention! Generally suitable for large and medium-sized motors, locomotives, machine tool spindles, internal combustion engines, generators, gas turbines, reduction gear boxes, rolling mills, vibrating screens, and lifting and transporting machinery. Bearing characteristics 1. The roller and the raceway are in line contact or repaired offline contact, with large radial bearing capacity, suitable for bearing heavy loads and impact loads. 2. The friction coefficient i
2022 / 07 / 11
Angular contact ball bearings mainly bear larger unidirectional axial loads. The greater the contact angle, the greater the load-bearing capacity. The cage materials are steel plate, brass or engineering plastics, and the forming methods are stamping or turning, depending on the bearing form or use conditions. There are other combined angular contact ball bearings, double row angular contact ball bearings and four-point contact ball bearings. Angular contact ball bearings can bear radial load and axial load at the same time. It can work at higher speeds. The larger the contact angle, the higher the axial load carrying capacity. High-precision and high-speed bearings usually take a contact angle of 15 degrees. Under the action of axial force, the contact angle will increase. Single row angular contact ball bearings can only bear axial load in one direction. When bearing radial load, additional axial force will be caused. And it can only limit the axial displacement of the shaft or housing in one direction. If it is installed in pairs, the outer rings of a pair of bearings are opposite, that is, the wide end faces the wide end face, and the narrow end faces the narrow end face. In this way, additional axial force can be avoided, and the shaft or housing can be restricted to the axial clearance range in both directions. Angular contact ball bearings can bear radial load and axial load at the same time because of the relative displacement of the raceways of the inner and outer rings on the horizontal axis. Therefore, paired installations are often used). The material of the cage includes brass, synthetic resin, etc., which are differentiated according to the type of bearing and the conditions of use.
Wholesale Car Auto Wheel Hub Bearing DAC5378 Original
2022 / 06 / 29
Wheel bearing is applied to automobile axle to load and provide accurate guide components for the rotation of the wheel hub, both bearing axial load and radial load. It has good performance to installing , omitted clearance, light weight, compact structure, large load capacity, for the sealed bearing prior to loading, ellipsis external wheel grease seal and from maintenance etc. And wheel bearing has been widely used in cars, in trucks also has a tendency to gradually expand the application.
Auto parts are on fire! Bearing market opportunities cannot be ignored
2022 / 06 / 20
1. Oligopoly, the new force is big but not strong Bearings play a crucial role in mechanical equipment (supporting the rotation of the machine), just as joints play a vital role in a person. Schematic diagram of bearing parts This seemingly ordinary small part has a market size of more than 100 billion in the world (the global bearing market size has reached 120 billion US dollars in 2021). The Asian region, which has a broad industrial market base, consumes more than 50% of the world's bearings. Bearing market size The 100 billion market, such a big cake, is mainly occupied by the famous eight major bearing players (the market share is close to 75%). There are no Chinese players here (5 of them are from Japan), but the eight major players have a total of more than 60 production enterprises and technology centers in China, and they are highly dependent on imports. At the same time, my country's bearing enterprises account for 20% of the world's share. Compared with traditional multinational players, there is indeed a big gap. Market share of eight major bearing multinational groups As a "joint" in the machinery industry, it has a wide range of applications. Automobiles, household appliances and motors occupy the top three in the bearing application field, accounting for 60.4% in total. It is also worth noting that the accuracy requirements of bearings in different industries are also different, and the bearing requirements of precision machine tools will definitely be higher. Since automobiles are the king of bearing applications, we will seize the main contradiction and look at the investment logic of automobile bearings. Application areas downstream of the bearing 2. Domestic substitution is still the main theme The hubs, differentials, gearboxes, engines and other parts of the car need to use bearings. Because new e
Why do bearings rust? How to prevent bearings from rusting?
2022 / 06 / 09
As we all know, bearings are precision mechanical parts that require high precision and high surface finish, and corrosion will make the bearing lose its original precision and finish, which will directly affect the performance of the bearing, reduce its service life, and even scrap it. In the process of bearing production and processing, if the rust prevention management measures are improper, it will cause a large amount of rust of semi-finished products and finished parts, which will seriously affect the balance connection and the completion of tasks on time. Therefore, bearing anti-rust management is very important. Today, the master will introduce the reasons for bearing rust and the measures to prevent bearing rust. The main reason for bearing rust 1) In the grinding process, the instantaneous high temperature will make the surface of the workpiece reach a molten state, and the steel surface will chemically react with the oxygen in the air to form an extremely thin (20--30nm) iron oxide film. If it is not completely removed in subsequent processing, even if the bearing is coated with anti-rust oil, the internal corrosion will appear on the surface of the bearing after a period of time. 2) During the fine grinding or super grinding of the bearing, the specified accuracy is not achieved, and pits of a certain depth are formed on the surface. Once the corrosion particles or moisture in the air enter these pits, the corrosion will gradually appear. 3) After the bearing is acid-printed and engraved, if the cleaning is not clean or the neutralization is not thorough, it will cause corrosion. 4) The method of applying anti-rust oil is unreasonable. One is to use a rag soaked with anti-rust oil to roll the bearing on the rag. Sweat on the hands, corrosive substances on the rag and the bearing parts where the anti-rust oil has not been applied will cause corrosion; The second is to stack the bearings to
SKF Cylindrical Roller Bearing NU220 roller bearing
2022 / 06 / 01
Cylindrical roller bearing Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the rib of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs or not, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing is a structure in which the inner ring and the outer ring can be separated. Cylindrical roller bearings without ribs on the inner or outer ring, the inner and outer rings can move relative to the axial direction, so they can be used as free end bearings. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in one direction. Generally, a steel stamping cage is used, or a copper alloy turning solid cage is used. However, there are also part of the use of polyamide forming cage. Features 1. The roller and the raceway are in line contact or trimmed line contact, and the radial bearing capacity is large, which is suitable for bearing heavy loads and impact loads. 2. The friction coefficient is small, suitable for high speed, and the limit speed is close to that of deep groove ball bearings. 3. N type and NU type can move axia
Wholesale Car Auto Wheel Hub Bearing DAC5378 Original
2022 / 05 / 24
Wheel bearing is applied to automobile axle to load and provide accurate guide components for the rotation of the wheel hub, both bearing axial load and radial load. It has good performance to installing , omitted clearance, light weight, compact structure, large load capacity, for the sealed bearing prior to loading, ellipsis external wheel grease seal and from maintenance etc. And wheel bearing has been widely used in cars, in trucks also has a tendency to gradually expand the application.
custom piston Low Compression For BMW
2022 / 05 / 16
The piston is the reciprocating part in the cylinder block of the automobile engine. The basic structure of the piston can be divided into top, head and skirt. The top of the piston is the main part of the combustion chamber, and its shape is related to the type of combustion chamber selected. Gasoline engines mostly use flat-top pistons, which have the advantage of small heat-absorbing area. There are often various pits on the top of the diesel engine piston, and its specific shape, location and size must be adapted to the requirements of the diesel engine's mixture formation and combustion. Classification Since the pistons of internal combustion engines work under high temperature, high pressure and high load conditions, the requirements for the pistons are relatively high, so we mainly talk about the classification of internal combustion engine pistons. 1. Accordi
High Chrome racing car spare parts engine valves
2022 / 05 / 07
racing car spare parts engine valves The material of engine valve is heat-resisting stainless steel. These engine valve possess high strength, anti-wear, anti-corrosion and hear-resisting. The material of custom engine valve have to be forged with the finest steel, process and flat surface grinding of high precision. The material of [Engine Valve" is heat-resisting stainless steel (JIS-SUH3, SUH35, SUH36). These engine valves possess high strength, anti-wear, anti-corrosion and hear-resisting. The material of engine valve have to be forged with the finest steel, process and flat surface grinding of high precision. The material of engine valve is heat-resisting stainless steel. These engine valve possess high strength, anti-wear, anti-corrosion and hear-resisting. The material of custom engine valve have to be forged with the finest steel, process and flat surface grinding of high precision. Auto Engine Valve specifications
NSK Tapper roller washing machine bearing 32005
2022 / 04 / 24
Taper roller bearings are generally used to support combined load mainly consisting of radial load. Their cups are separable for easy assembling. During mounting and using, radial clearance and axial clearance can be adjusted and preloaded mouting can be made. 1): This kind of Tapered roller bearings have tapered inner and outer r
NEW Product Flanged Automotive Deep Groove Ball Bearing QJ4580ZV
2022 / 04 / 14
Bearings are basic parts, and bearings are standard parts. Any mechanical equipment that needs to be rotated needs bearings, supports, and bearings in mechanical equipment to prevent friction and bear loads. Bearings are generally divided into rolling bearings and sliding bearings. At present, Sliding bearings have been gradually eliminated, but they still have their uses. As rolling bearings that are more and more widely used today, the commonly used rolling elements are: balls, short cylindrical rollers, tapered rollers, drum rollers and rollers. Needle and other five. We are all classified by rolling bearings! (1) According to the shape of the rolling elements, bearings can be divided into two types: ball bearings and roller bearings. The rolling elements of the ball bearing and the raceway of the ferrule are in point contact, with low load capacity and poor impact resistance, but small frictional resistance, high limit speed and low price. The rolling element of the roller bearing is in line contact with the raceway of the ring, which has high load capacity and impact resistance, but has large frictional resistance and high price. (2) According to the number of rows of rolling elements, bearings can be divided into single-row, double-row and multi-row bearings. (3) Bearings can be divided into rigid bearings and self-aligning bearings according to whether they can be self-
High quality 23122 spherical roller bearing
2022 / 03 / 17
A spherical roller bearing is a rolling-element bearing that permits rotation with low friction, and permits angular misalignment.Typically these bearings support a rotating shaft in the [bore] of the inner ring that may be misaligned in respect to the outer ring. The misalignment is possible due to the spherical internal shape of the outer ring and spherical rollers. Despite what their name may imply,Spherical roller bearings are not truly spherical in shape. The rolling elements of spherical roller bearings are mainly cylindrical in shape,But have a profile that makes them appear like cylinders that have been slightly over-inflated. Spherical roller bearing used in countless industrial applications, where there are heavy loads, moderate speedsand possibly misalignment.
best quality Engine Assembly intake exhaust engine valve
2022 / 02 / 22
Engine function The function of the valve is to input air into the engine and discharge the exhaust gas after combustion. From the structure of the engine, it is divided into intake valve and exhaust valve. The function of the intake valve is to suck air into the engine and mix it with the fuel; the function of the exhaust valve is to discharge the burned exhaust gas and dissipate heat. composition The valve is composed of a valve head and a stem. The temperature of the valve head is very high (intake valve 570~670K, exhaust valve 1050~1200K), and it also bears the pressure of gas, the force of valve spring and the inertial force of transmission components, its lubrication and cooling conditions are poor, and the valve must be It has certain strength, stiffness, heat resistance and wear resistance. The intake valve is generally made of alloy steel (chromium steel, nickel-chromium steel), and the exhaust valve is made of heat-resistant alloy (silicon-chromium steel). Sometimes in order to save heat-resistant alloy, the exhaust valve head is made of heat-resistant alloy, and the stem is made of chrome steel, and then the two are welded together. The shape of the valve head includes a flat top, a spherical top and a horn top. Usually flat tops are used. The flat top valve head has the advantages of simple structure, convenient manufacture, small heat absorbing area and small mass, and can be used for both intake and exhaust valves. Spherical top valve is suitable for exhaust valve, which has high strength, small exhaust resistance and good exhaust gas elimination effect, but its heating area is large, its mass and inertia are large, and its processing is complicated. The trumpet type has a certain streamlined shape, which can reduce the intake resistance, but its hea
2022 / 02 / 16
Deep groove ball bearing (GB/T 276-2003) The original list of radial ball bearings is the most widely used type of rolling bearing. It is characterized by low frictional resistance and high rotational speed. It can be used on parts that bear radial load or combined radial and axial loads at the same time, and can also be used on parts that bear axial load, such as low-power motors, Automobile and tractor gearboxes, machine tool gearboxes, general machines, tools, etc.
2022 / 02 / 08
Hello all the friend, we had back to work today . If you have any require about ball bearing, roller bearing, tapered roller bearing, pillow block bearing,Engine Valve, Piston , Piston ring etc,please feel free to contact us.
2022 / 01 / 17
Spherical roller bearings have double row rollers, the outer ring has a shared spherical raceway, and the inner ring has two raceways that are inclined at an angle relative to the bearing axis. This ingenious structure makes it have self-aligning performance, so it is not easily affected by the angle between the shaft and the bearing box seat on the error or the shaft bending, and is suitable for the occasions where the installation error or the shaft deflection causes the angle error. In addition to bearing radial load, the bearing can also bear axial load acting in both directions. Spherical roller bearings have two types of inner holes: cylindrical and conical, and the taper of the conical taper hole is 1:30 and 1:12. This conical inner hole bearing is equipped with an adapter sleeve or a withdrawal sleeve. The tapered inner hole self-aligning ball bearing can be easily and quickly assembled on the optical shaft or the stepped machine shaft. Spherical roller bearings have two rows of rollers, which mainly bear radial loads, and can also bear axial loads in either direction. It has high radial load capacity, especially suitable for working under heavy load or vibration load, but cannot bear pure axial load. The outer ring raceway of this type of bearing is spherical, so its self-aligning performance is good, and it can compensate for the coaxiality error. There are two rows of symmetrical spherical rollers, the outer ring has a shared spherical raceway, and the inner ring has two raceways inclined at an angle to the bearing axis, which has good self-aligning performance. The bearing can still be used normally, and the centering performance varies with the bearing size series. Generally, the allowable centering angle is 1~2.5 degrees. The load capacity of this type of bearing is large. In addition to bearing radial load, the bearing can also The axial load acting in both directions has good impact resistance. Generally speaking, the
Shijiazhuang Longshu Ball Bearing Co.,Ltd
2022 / 01 / 07
Shijiazhuang Longshu Bearing Co.,Ltd is establish in 2002 and developed foreign trade business in 2015,it is one of the largest domestic and imported bearing manufacturer and distributor integrating the research, development and sales of bearing. We specialize in providing all kinds of bearings, such as Deep Groove Ball Bearing , Tapered Roller Bearings ,Spherical Roller Bearing, Cylindrical Roller Bearing, Angular Contact Bearing ,Pillow Block Bearing & Imported famous brand bearing: SKF, NSK, NTN, TIMKEN, FAG, NACHI, INA, KOYO etc. With more than 15 years` experience,We have a mature research and development group, advanced production line and experienced workers, a strict quality inspection group and a 24-hour online sales group. The company adopts detailed quality control measures to enhance products and services, from forging, heat treatment, lathe, grinding to cleaning and assemble, we all have strictly control on every procedure to assure bearing's best quality of running effect , durable and long-life. We sincerely hope we can create a long-term stable cooperative with more customers. In 2020,the company start transformation produced and sale engine parts,specialized in Engine valve,Hydraulic tappet,Engine bearing and Piston&ring ect. Our products are mainly used for Benz,Land Rover,Audi, BMW,Buick,Volvo, Toyota, Mitsubishi,Ford, Hyundai,Suzuki,Yanmar,Cummins,Komatsu,Daewoo,Hino ect. We're an industry and trade integration company with production,sell and forign trade.We firstly passed the ISO9001:2000 International quality control system authentication in the field. Management:our term has professional staff,and we manage as modern enterprise.Produce:we introduce the newest manufacturing line,and we have all kind of inspection equipment,so we win the best honor of our customers.Our company adheres to the quality policy of "first-class products, thoughtful service, to meet the
2022 / 01 / 07
Angular contact ball bearings mainly bear larger unidirectional axial loads. The greater the contact angle, the greater the load-bearing capacity. The cage materials are steel plate, brass or engineering plastics, and the forming methods are stamping or turning, depending on the bearing form or use conditions. There are other combined angular contact ball bearings, double row angular contact ball bearings and four-point contact ball bearings. Angular contact ball bearings can bear radial load and axial load at the same time. It can work at higher speeds. The larger the contact angle, the higher the axial load carrying capacity. High-precision and high-speed bearings usually take a contact angle of 15 degrees. Under the action of axial force, the contact angle will increase. Single row angular contact ball bearings can only bear axial load in one direction. When bearing radial load, additional axial force will be caused. And it can only limit the axial displacement of the shaft or housing in one direction. If it is installed in pairs, the outer rings of a pair of bearings are opposite, that is, the wide end faces the wide end face, and the narrow end faces the narrow end face. In this way, additional axial force can be avoided, and the shaft or housing can be restricted to the axial clearance range in both directions. Angular contact ball bearings can bear radial load and axial load at the same time because of the relative displacement of the raceways of the inner and outer rings on the horizontal axis. Therefore, paired installations are often used). The material of the cage includes brass, synthetic resin, etc., which are differentiated according to the type of bearing and the conditions of use.
2022 / 01 / 04
Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the retaining edge of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing has a separable inner ring and outer ring structure. Cylindrical roller bearings with no ribs on the inner ring or outer ring, the inner ring and outer ring can move relative to the axial direction, so it can be used as a free end bearing. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can bear a certain degree of axial load in one direction. Generally, stamping steel cages or solid cages made of copper alloy cars are used. But there is also a part of the use of polyamide forming cage. Feature Editing Broadcast 1. The roller and the raceway are in line contact or repaired offline contact, with large radial bearing capacity, suitable for bearing heavy loads and impact loads. 2. The friction coefficient is small, suitable for high speed, and the limit speed is close to the deep groove ball bearing. 3. The N type and NU type can move axially, can adapt to the change of the relative position of the shaft and the housing caused by thermal expansion or installation error, and can be used as a free end support. 4. The processing requirements for the shaft or the seat hole are relatively high, and the relative deflection of the outer ring axis after the bearing is installed must be strictly controlled to avoid contact stress concentration. 5. The inner ring or outer ring can be separated for easy installation and disassembly [1]. Product feature editing broadcast The cylindrical roller is in line
Basic knowledge of cylindrical roller bearings
2021 / 12 / 25
Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the retaining edge of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing has a separable inner ring and outer ring structure. Cylindrical roller bearings with no ribs on the inner ring or outer ring, the inner ring and outer ring can move relative to the axial direction, so it can be used as a free end bearing. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can bear a certain degree of axial load in one direction. Generally, stamping steel cages or solid cages made of copper alloy cars are used. But there is also a part of the use of polyamide forming cage. The rollers of the cylindrical roller bearing are in line contact with the raceway, and the radial load capacity is large. It is not only suitable for bearing heavy loads and impact loads, but also suitable for high-speed rotation. At the same time, it improves the lubrication conditions of the contact area between the roller end face and the rib, and improves the performance of the bearing. Bearing people's WeChat is very worthy of attention! Generally suitable for large and medium-sized motors, locomotives, machine tool spindles, internal combustion engines, generators, gas turbines, reduction gear boxes, rolling mills, vibrating screens, and lifting and transporting machinery. Bearing characteristics 1. The roller and the raceway are in line contact or repaired offline contact, with large radial bearing capacity, suitable for bearing heavy loads and impact loads. 2. The friction coefficient i
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Ms. Cynathia Li
Tel:86-311-86831973
Fax:86-311-86831973
Email:admin@longshubearing.com
Address:4 Floor No.10 Dinxin Hardware Market ,Changan District., Shijiazhuang, Hebei, Shijiazhuang, Hebei
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.