Thrust Ball Bearing
Linqing Tuocheng Bearing Co., Ltd： You Professional Thrust Ball Bearing Manufacturer!
Linqing Tuocheng Bearing Co., Ltd. was established in June 2002 and is located in Panzhuang Town, Linqing City, Liaocheng City, Shandong Province. It has been committed to the research and development, production, sales and service of high-quality bearings. Each bearing produced by the company is developed from the requirements of safety, high temperature resistance and wear resistance. The company's products are exported to more than a dozen countries such as Russia, Lithuania, Iran, and Dubai.
Rich Product Variety
Our company can produce self-aligning ball bearings, Spherical Roller Bearing CA Series, Spherical Roller Bearing MA Series, Spherical Roller CC Series and Spherical Roller Bearing MB Series
Wide Range of Product Uses
Our tapered roller bearings are often used in applications where there is a requirement for heavy-duty operation. These include earth moving equipment, mining machines, industrial machinery, construction vehicles, marine vessels, wind turbines, and so on.
Quality Guaranteed
Our tapered roller bearings are rigorously tested to ensure durability and long-lasting performance.With our advanced technology and manufacturing equipment,They are developed from several safety, high temperature resistance, wear resistance and other requirements.
Leading Service
We have many years of industry experience and a comprehensive production management, quality supervision, sales service operation system. Whether you want to purchase spontaneous tiles or reflective paint, simply send your requirements via email and we can customize the product for you.
Related Product Introduction
Product Features In order to obtain low friction torque, high rigidity, and good rotation accuracy of the bearing, steel balls with small outer diameters are used. The use of hollow shafts ensures light weight and space for wiring.
Product Features In order to obtain low friction torque, high rigidity, and good rotation accuracy of the bearing, steel balls with small outer diameters are used. The use of hollow shafts ensures light weight and space for wiring.
In the past 40 years, new mechanical parts have gradually emerged around the world. It consists of inner and outer rings, rolling elements, etc. The slewing bearings produced in my country are mainly introduced by the Tianjin Construction Machinery Research Institute designated by the Ministry of Machinery Industry in the early 1980s.
The outer ring of the roller bearing adopts a full complement cylindrical roller bearing with a thick outer ring wall. The outer diameter surface of the roller has a cylindrical shape and an arc shape, which can be designed to match the raceway surface according to the application. With this outer ring, the rollers can roll directly on the raceway and can withstand heavier loads and shock loads.
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 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.
When the outer ring is particularly thick, it is installed in groups on the stationary shaft to become the bearing of the support roller.
According to the force, it is divided into one-way thrust ball bearings and two-way thrust ball bearings. One-way thrust ball bearing can bear one-way axial load. Two-way thrust ball bearing can bear two-way axial load, in which the shaft ring is matched with the shaft.
What is Thrust Ball Bearing
Thrust ball bearings are a type of rotary bearing that can withstand axial loads, or thrust, at high speeds. They are made up of rolling elements in a cage that sits between two washers, either flat or grooved. The grooved washers have raceways that help the bearings rotate more accurately. Thrust ball bearings are different from other ball bearings because they don't have an inner and outer ring, and instead use washers to replace them.
Features of Thrust Ball Bearing
High Reliability
When the mechanical equipment is running, due to the effect of axial load, the shaft will produce a certain displacement. If there is no support from the thrust ball bearing, the shaft will bend or break, causing the mechanical equipment to fail to work properly. The existence of thrust ball bearings can effectively bear the axial load, ensure the normal operation of the mechanical equipment, and improve the reliability of the mechanical equipment.
High Load
The thrust ball bearing has a strong load-bearing capacity and high load capacity. It can withstand large axial loads and is suitable for applications with high axial forces. The existence of thrust ball bearings can ensure the stability and high-load operation of mechanical equipment.
Smooth Operation
The structure of the thrust ball bearing is simple and easy to disassemble. It has the smallest friction resistance among all rotating bearings, so it can ensure the smoothness and flexibility of operation, and it will not generate too much heat due to friction when running at high speed, causing the temperature to rise.
Low Cost
Compared with other types of thrust bearings, the manufacturing cost and maintenance cost of thrust ball bearings are lower because of its simple structure and many types to meet different needs and can withstand harsh environments. Due to the characteristics of the thrust ball bearing itself, it has relatively less wear and tear during operation, which also reduces maintenance costs.
Type of Thrust Ball Bearing
Single-direction Thrust Ball Bearings
Single-direction thrust ball bearings consist of a shaft washer, a bearing race, and a ball and cage thrust assembly. The bearing is a separable structure, so installation is simple because the washer and ball and cage assembly can be installed separately.
There are two types of small single-direction thrust ball bearings, one with a flat race or one with a self-aligning race. Bearings with self-aligning races can be used with self-aligning washers to compensate for angular misalignment between the support surface in the bearing seat and the shaft.
Double-direction Thrust Ball Bearing
The double-direction thrust ball bearing consists of three parts: a shaft ring, two seat rings and two steel ball-cage assemblies. The bearing is a separate type, and each part can be installed independently. The shaft ring that matches the shaft can withstand axial loads in both directions and can fix the machine shaft in both directions. This type of bearing must not withstand any radial load. The thrust ball bearing also has a structure with a seat pad. Since the mounting surface of the seat pad is spherical, the bearing has a self-aligning performance, which can reduce the impact of installation errors. Double-direction bearings and one-way bearings use the same shaft ring, seat ring and steel ball-cage assembly.
Installation of Thrust Ball Bearing
Plane thrust bearings mainly bear axial loads in assemblies and are widely used. Plane thrust bearings mainly bear axial loads in assemblies and are widely used. Although the installation operation of thrust bearings is relatively simple, errors often occur during actual maintenance, that is, the installation positions of the tight ring and loose ring of the bearing are incorrect, resulting in the bearing losing its function and the shaft neck being worn out quickly. The inner ring of the tight ring and the shaft neck are transitional fits. When the shaft rotates, the tight ring is driven and rubs against the end face of the stationary part. When subjected to axial force (Fx), the friction torque will be greater than the inner diameter fit resistance torque, causing the tight ring and the shaft fitting surface to be forced to rotate, aggravating the wear of the shaft neck.
Therefore, the following points should be noted when installing thrust bearings.
(1) Distinguish the tight ring and loose ring of the bearing (based on the inner diameter of the bearing, the diameter difference is 0.1~0.5mm).
(2) Distinguish the stationary parts of the mechanism (i.e. the parts that do not move, mainly referring to the stationary parts of the assembly and separation mechanism).
(3) Regardless of the situation, the loose ring of the bearing should always rest on the end face of the stationary part.
Craftsmanship of Thrust Ball Bearing
High-quality steels, such as high-carbon chromium steel, are the most common materials used to manufacture ball bearings, due to their high strength and wear resistance. Other materials such as stainless steel, ceramics, and even some plastics can be used depending on the bearing application requirements.
The selected material is forged or cast into the shape of the bearing component. Forging involves heating and shaping, adjusting the grain structure of the steel to increase durability. Alternatively, casting is less common but is used for larger or complex components and involves shaping molten metal into the desired shape.
Forged or cast parts are heat treated to increase hardness and durability. The part is first heated to a high temperature and then cooled rapidly in a quenching process, followed by tempering, in which the part is heated again to a lower temperature and then cooled slowly. This process provides a balance between hardness for resistance to wear and toughness for resistance to shock loads.
After heat treatment, the parts are machined and ground to a high degree of precision in their final dimensions. Machining processes include turning, milling, and drilling, all performed using computer-controlled machine tools to ensure precision. Superfinishing is done to achieve the proper sphericity and surface finish to ensure smooth and efficient operation.
Finally, the inner ring, outer ring, balls and cage are assembled into the bearing and lubricant is applied to reduce friction and wear between the moving parts and ensure smooth and efficient operation of the bearing. The type of bearing lubricant (oil or grease) depends on the application.
Maintenance of Thrust Ball Bearing
Low-temperature High-speed Bearing Grease
At present, the equipment using thrust ball bearings is becoming more and more sophisticated, which requires the grease used in the bearings to have the following properties:
(1) Have the same operating life as the bearing, extend the maintenance cycle as much as possible, shorten the downtime, and improve labor productivity.
(2) At high speeds of dn>5×105, ensure that the motor temperature rise is low and there is no oil dumping, thereby reducing power consumption and protecting the motor.
(3) Its impurity content is controlled below a certain standard to minimize the pollution of equipment noise to the environment.
(4) Ensure the flexibility of bearing starting and operation under ultra-low temperature working conditions and ensure the minimum output power.
General Low-noise Motor Bearing Grease
In the NTN bearing industry, this type of grease is used the most, accounting for about 70% of the total grease used. Because this type of grease uses lithium soap with soft fibers and easy filtration as a thickener and uses mineral oil as the base oil, it is easy to meet the requirements of reducing vibration values of medium and low-end thrust ball bearings. Another advantage is that it has good pumpability, which is simple and easy to do whether it is mechanical greasing or manual greasing.
High-temperature, Long-life, Low-noise Bearing Grease
Grease used in high-temperature and high-speed environments should have the following characteristics:
(1) It does not leak at high temperatures, that is, it maintains a certain consistency and does not soften at a temperature of about 180°C.
(2) Less grease leakage. When the grease is subjected to high-frequency repeated shearing and large centrifugal forces in the bearing, the lubrication can flow back to the raceway in time without being thrown out.
(3) It has a certain mute effect. Since the fibers of high-temperature grease are generally hard, its mute performance in the thrust ball bearing noise test is far inferior to that of lithium-based grease.
(4) This type of grease must have a certain high-temperature service life and good antioxidant ability at high temperatures, thereby extending the life of NTN bearings and related equipment.
When using an oil bath lubrication system, if the oil temperature is below 60°C (140°F) and the lubricant is not contaminated, the lubricant can be replaced once a year. If the oil temperature is between 60-100°C (140-210°F), the lubricant needs to be replaced four times a year. If the oil temperature is between 100-120°C (210-250°F), the lubricant needs to be replaced once a month. If the oil temperature is above 120°C (250°F), the lubricant needs to be replaced once a week.
Compare with other products
Thrust Ball Bearings
Thrust ball bearings are a type of separable bearings, where the shaft ring and seat ring can be separated from the components of the cage and steel ball. The shaft ring is a sleeve ring that matches the shaft, and the seat ring is a sleeve ring that matches the bearing seat hole, with a gap between the shaft and the seat ring. Thrust ball bearings can only bear axial loads, while one-way thrust ball bearings can only bear axial loads in one direction, and two-way thrust ball bearings can bear axial loads in two directions. Thrust ball bearings cannot limit the radial displacement of the shaft, and the limit speed is very low. One-way thrust ball bearings can limit the axial displacement of the shaft and housing in one direction, while two-way bearings can limit the axial displacement in two directions.
Thrust Roller Bearings
Thrust roller bearings are used to bear axial and radial combined loads, with axial loads being the main load, but the radial load shall not exceed 55% of the axial load. Compared with other thrust roller bearings, this type of bearing has a lower friction factor, higher speed, and self-aligning performance. The rollers of the 29000 bearing are asymmetric spherical rollers, which can reduce the relative sliding of the rollers and raceways during operation. The rollers are long, large in diameter, large in number, and have a high load capacity. They are usually lubricated with oil, and grease lubrication can be used in some low-speed situations. When designing and selecting, the 80000 thrust cylindrical roller bearings, 90000 thrust tapered roller bearings, and AXK thrust needle roller bearings should be given priority. They can withstand unidirectional axial loads, and their axial load capacity is much greater than that of thrust ball bearings. They also have high rigidity and occupy less axial space. Thrust cylindrical roller bearings and thrust needle roller bearings are suitable for low-speed occasions. The speed of thrust tapered roller bearings is slightly higher than that of thrust cylindrical roller bearings.
Application of Thrust Ball Bearing
Automotive
Thrust bearings are used in vehicles to support axial forces caused by helical gears in modern vehicle gearboxes. They are also ideal for higher speed automotive applications that require oil lubrication.
Transportation
Thrust bearings are very important for the transportation industry as they allow for more powerful and improved engines and propellers.
Generators and Water Turbines
Certain types of thrust bearings are capable of reducing friction and drag, making them ideal for generators and water turbines.
Heavy-Duty Machinery
Thrust bearings with high load ratings are suitable for heavy-duty machinery, such as drills and cranes.
Industrial Machinery
Several types of industrial machinery have a need for rotating shafts, making thrust bearings a crucial component.
Mining and Construction
Thrust bearings are typically made using corrosion-resistant materials, allowing them to support axial loads in equipment used in demanding mining and construction environments.
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