A bearing is a mechanical component whose function is to guide a rotating assembly. The bearing therefore allows the rotation of one element relative to another.
Bearings are therefore high-precision parts that allow equipment to move at different speed levels by efficiently transporting notable loads. They must offer high precision and durability, as well as the possibility of working at high speeds with minimal noise and vibration.
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This type of device is found in all applications such as, for example, the automotive industry, the aerospace sector, construction equipment, machine tools, etc.
There are several types of bearings, the four main types are: ball bearings, cylindrical roller bearings, tapered roller bearings and needle bearings.
While ball bearings are the most common mechanisms, each device has its advantages and disadvantages. That is why we recommend that you compare each of these bearings to determine which is the ideal system for your requirements.
When choosing a bearing, you must consider several important factors. The first factor to consider is the load that the bearing can support.
There are two types of loads:
– axial load: parallel to the axis of rotation
– radial load: perpendicular to the axis
Each type of bearing is specifically designed to support an axial or radial load. Some bearings can support both loads: in this case we refer to a combined load. If you have to support a combined load, for example, we recommend that you choose a tapered roller bearing. If you need a bearing capable of withstanding a high radial load, then we recommend a cylindrical roller bearing. On the other hand, if your bearing needs to support lighter loads a ball bearing might be sufficient as they are often less expensive.
Rotation speed is another element that should be considered. Some bearings can withstand high speeds. The presence of a cage for cylindrical roller bearings and needle bearings allows for greater speeds than bearings without a cage. However, the choice of a higher speed is sometimes made at the expense of the load. You should also consider the possible presence of misalignment; some bearings are not suitable for this situation, such as double row ball bearings.
You will therefore need to pay attention to the bearing construction: insert and spherical bearings make it easy to support these misalignments. We suggest that you lean towards bearings with automatic alignment which automatically correct alignment defects caused by shaft bending or installation errors. Similarly, operating conditions are very important when choosing the ideal bearing. It is thus necessary to analyze the environment you will be using the bearing in. Your bearing may be subject to a number of contaminations. Some uses can lead to noise disturbance, impact and/or vibration.
Your bearing must therefore withstand this impact on the one hand and not be an inconvenience on the other. Another essential element to consider is the bearing life. Several factors, such as speed or repeated use, can impact the bearing life.
Choosing a sealing system is essential in order to ensure the correct and long-lasting operation of a bearing; it is therefore important to ensure that the bearing is always well-protected from any impurities and external agents, such as dust, water, corrosive fluids or even used lubricants. This choice depends on the type of lubricant, the ambient conditions (and therefore the type of contamination), the fluid pressure and the rotation speed. To give you a good place to start, the fluid pressure is a determining factor in the choice of sealing system. If the pressure is high (in the range of 2-3 bars for example) a mechanical seal is ideal. Otherwise, the choice will be directly linked to the type of lubricant, grease or oil. For example, for grease lubrication the most commonly used solutions are: deflectors or washers, narrow passages that are machined or with grooves; in the case of oil lubrication the sealing system is often accompanied by the presence of a groove for oil recovery.
Conditions of use can also influence your choice, especially when it comes to assembling the bearing. The rigidity and precision that your use requires must also be taken into account. In some cases, you can provide for the application of a preload in the assembly of your bearing to increase its rigidity. Additionally, the preload will have a positive impact on the bearing life and noise level of your system.
Be careful, in order to choose the preload (radial or axial) you must know the rigidity of all parts through software or experimentation. In your selection criteria, you must also consider the ideal material for your bearing. Bearings can be made out of metal, plastic or ceramic. The bearing material depends on its intended use. We recommend that you choose the most compression-resistant bearing. Keep in mind however that the material used affects the price of the bearing.
Each type of bearing can be deep-groove, spherical or insert. Deep-groove bearings are the most common. Insert bearings are deep-groove bearings which, like spherical bearings, effectively support misalignment.
They differ from spherical bearings in that they have a smaller swivel angle. The larger the swivel angle, the more the bearing will withstand misalignment.
Another factor to consider: depending on the use, you will need a rotating shaft (for example wheel drive bearings for cars) or a rotating hub (like for washing machine bearings).
Then you will need to pay attention to how the bearings are assembled. If two bearings are too close together, you should use the O-assembly method so that the bearings do not interfere with each other. If this is not the case then the X-assembly method is perfectly suitable.
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Finally, each bearing has specific dimensions. These dimensions, expressed in mm, are subject to international standards. We therefore advise you to pay attention to the bore of the bearing, i.e. the inner diameter (always represented by the letter d), the outer diameter (represented by the letter D) and the width (represented by the letter B).
Bearings are integral components in machinery, facilitating smooth and efficient motion by reducing friction between moving parts. Among the various types of bearings, deep groove ball bearings and angular contact ball bearings are particularly prominent. Understanding the differences, applications, and advantages of each can help in making informed decisions. In this article, we’ll delve into the nuances of these two types of bearings and how LKPB, a leading bearing supplier and manufacturer, can provide tailored solutions for diverse requirements.
Deep groove ball bearings are the most commonly used type of ball bearing. Known for their versatility and efficiency, they can support both radial and axial loads. Their design features an uninterrupted raceway that makes them capable of handling higher speeds and providing smooth operation.
Deep groove ball bearings consist of an inner ring, outer ring, a cage, and balls. The deep grooves in the raceways allow for higher load-carrying capacity. This design ensures minimal contact between the balls and the raceways, reducing friction and wear.
These bearings are widely used in various applications, including:
Angular contact ball bearings are designed to handle both radial and axial loads, but unlike deep groove ball bearings, they can support axial loads in one direction. Their unique design allows for greater contact angles, enhancing their load-bearing capacity.
Angular contact ball bearings feature an inner and outer ring with a contact angle, which is the angle between the line connecting the points of contact of the ball and the raceways. This angle enables the bearing to support axial loads more effectively.
Angular contact ball bearings are used in applications requiring high precision and high-speed capabilities, such as:
While both types of bearings are designed to handle loads and facilitate smooth movement, they have distinct differences that make them suitable for different applications.
One of the standout features of LKPB as a bearing manufacturer is their ability to provide customized and OEM solutions. This is particularly beneficial for industries with specific requirements that standard bearings cannot meet.
LKPB excels in offering non-standard customization for bearings, allowing clients to specify dimensions, materials, and other features to suit their particular applications. This customization ensures optimal performance and longevity of the bearings in their intended use.
For original equipment manufacturers, LKPB offers tailored bearing solutions that integrate seamlessly into their products. By working closely with OEMs, LKPB ensures that the bearings meet precise specifications and performance criteria, enhancing the overall quality and reliability of the finished products.
Choosing the right bearing supplier is crucial for ensuring the quality and performance of your bearings. Here are some key considerations when selecting a bearing manufacturer:
Proper maintenance is essential for ensuring the longevity and optimal performance of both deep groove ball bearings and angular contact ball bearings. Here are some maintenance tips:
Deep groove ball bearings and angular contact ball bearings are essential components in various applications, each offering unique advantages and suited for specific needs. Deep groove ball bearings are versatile and suitable for a wide range of applications, while angular contact ball bearings are ideal for high-precision and high-load scenarios. LKPB, as a leading bearing supplier and manufacturer, provides high-quality, customized solutions, ensuring optimal performance and reliability. Whether you need standard bearings or bespoke designs, LKPB is equipped to meet your needs and help you achieve your operational goals.