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We are committed to the mechanical parts processing market and provide well-known CNC equipment manufacturers and automation companies in South Korea, China and other countries.
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What is Bearing Seat
Bearing seat is a kind of large and extra-large bearing housing which can accept comprehensive load and has special construction, and is characterized by compact construction, sensitive slewing and convenient device maintenance. It is the outer support of the bearing, i.e. the external support structure of the bearing, which corresponds to the shaft, the inner support point of the bearing. The role of the bearing housing is to provide the necessary support and positioning to ensure that the bearing can work properly and bear the corresponding load. According to different classifications, bearing housings can be divided into sliding bearing housings, rolling bearing housings, split bearing housings, housings with flanges, external spherical bearing housings and many other types, and the main materials include cast steel, gray cast iron, ductile cast iron, stainless steel and so on, in order to satisfy the needs of different application scenarios.
Related Product
Confidentiality system (taking confidentiality and security measures for your drawings and personal information)
-Measurement equipment (complete mechanical processing equipment)
-Price advantage (more affordable compared to accessories of the same level).
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Advantages of Shaft Sleeve
Compact structure, sensitive rotation, easy maintenance of the device: Shaft sleeve has a compact structure, so that it can provide stable support in a limited space, while its sensitive rotation characteristics make the Mechanical equipment can respond quickly, and easy maintenance of the device reduces maintenance costs and time.
Various types to meet different needs: There are various types of housings, such as sectional, sliding shaft sleeves, rolling shaft sleeves, housings with flanges and spherical shaft sleeves, etc. Each type has its own unique characteristics. Each type has its unique advantages and application scenarios. For example, split housings are easy to install and maintain, sliding housings are suitable for high loads and high speeds, rolling housings are suitable for high speeds and heavy loads, flanged housings are suitable for applications that require high loads and high speeds, and flanged housings are suitable for applications that require heavy loads. For example, split shaft sleeves are suitable for high loads and high speeds, rolling shaft sleeves are suitable for high speeds and heavy loads, shaft sleeves with flanges are suitable for connecting pipelines or other equipment, and spherical shaft sleeves are characterized by compactness, sensitivity to rotation, and ease of maintenance.
High-temperature and high-pressure resistance and excellent corrosion resistance: In specific industry applications, such as lithium industry, the shaft sleeve needs to have good high-temperature and high-pressure resistance and excellent corrosion resistance to ensure the stable operation of the equipment in harsh environments.
Precision machining process and lightweight design: In order to meet the needs of high precision and high efficiency, the processing of the shaft sleeve usually adopts precision machining process, and at the same time, the design focuses on lightweight to ensure that the structure of the equipment is lightweight, easy to handle and install. Easy to carry and install.
Reliable sealing performance: In order to prevent external dust, water vapor and other substances from entering the bearing, affecting the normal operation of the equipment, the shaft sleeve needs to have good sealing performance.
The slewing bearing seat is a large and extra-large bearing seat that can accept comprehensive loads and has a special structure. It has the characteristics of compact structure, sensitive rotation, and convenient device maintenance. Where there is a bearing, there must be a support point. The inner support point of the bearing is the shaft, and the outer support is often referred to as the bearing seat.
Because one bearing can choose different bearing seats, and one bearing seat can choose different types of bearings at the same time, there are many types of bearing seats. Bearing housings are included in Quick, Easy and Excellent, and many large foreign bearing companies also have their own housing catalogs.
However, the markings of the same bearing seat model in different company samples are not exactly the same. For different applications of standard housings, housings of different materials can be selected such as special housings of gray cast iron, ductile iron, cast steel, stainless steel, and plastic.
What Are The Types Of Bearing Seats
Pillow type bearing housings
Due to its versatility and ease of installation, it is the most commonly used type of bearing housing. Pillow blocks come in different shapes and sizes and are typically made of cast iron, stainless steel or thermoplastic materials. They are designed to support radial loads and can be used in a variety of applications, including conveyor systems, agricultural machinery and HVAC systems.
Flanged housings
Flanged housings are similar to pillow block housings, but they have a flange on one side of the housing. The flange provides additional stability and support, making them suitable for applications requiring high accuracy and precision. Flanged housings are typically used in machines that require precise rotary motion, such as printing presses and robots.
Winding bearing housing
It is designed to adjust the bearing position, which is useful for applications that require flexible alignment. Winder housings usually have a groove or a series of holes that allow easy adjustment of the bearing position. They are used in conveyor systems, packaging machinery and material handling equipment.
Spherical bearing housing
It is designed to accommodate misalignment between the shaft and the housing, making it suitable for applications that require a high degree of flexibility. Spherical housings have a spherical inner ring that can be tilted and rotated for smooth movement even in challenging environments. They are commonly used in agricultural machinery, mining equipment and construction machinery.
Cartridge bearing housing
It is a compact and self-contained bearing housing that is easy to install and replace. Cartridge housings are typically used in machines that require frequent maintenance and repair, such as automobile engines, power tools and pumps.
Notes On The Selection Of Bearing Seat Material
Cast iron material
Cast iron, as a widely used bearing housing material, is cheap, easy to cut, and easy to manufacture into complex shapes, making it a widely used material in engineering structural design. However, compared with steel, the mechanical strength and wear resistance of cast iron is slightly inferior, and it is more susceptible to moisture, rust and fine cracks. Therefore, when choosing cast iron material, it is necessary to determine the material grade, detection and protection measures according to the specific use environment to ensure its stable performance and life.
Steel material
Steel is a material with high mechanical strength and wear resistance, and its relatively high price but relatively excellent properties make it the "first choice" for many applications. Compared with cast iron material, the density of steel is larger, so it will cause a certain degree of its own weight burden, causing the stability of the bearing seat in use. Therefore, when selecting materials, it is necessary to consider the use of the environment comprehensively to meet the dual needs of design requirements and use effects.
Other materials
In addition to cast iron and steel, there are some commonly used materials for bearing housings, such as aluminum alloy, copper alloy, etc. These materials have good corrosion resistance and will have good application prospects in some special use environments.
Where Is The End Face Of The Bearing Seat
The positioning of the bearing seat end face plays a crucial role in ensuring smooth and efficient operation of machines. The bearing seat end face typically refers to the flat surface of the bearing housing that comes in contact with the exterior components of the machine. This surface needs to be placed in the right location to ensure successful bearing installation and a long-lasting operating life.
The position of the bearing seat end face is typically determined by the machine designer or manufacturer. It is placed in exact alignment with the component that requires support. To achieve maximum efficiency, the bearing seat end face needs to be properly aligned, parallel and perpendicular to the other machine components. Misaligned bearing seat end face can cause bearing damage, poor machine performance, and even failure.
In most cases, the bearing end face is designed to fit within the housing on a machine. The bearing seat end face is positioned within the housing based on the design requirements of the machine. Often, tight tolerances are used to ensure that the bearing seat end face fits precisely with the housing. The use of tight tolerances ensures the proper alignment of the bearing and other machine components, resulting in a smooth and efficient machine operation.
The proper positioning of the bearing seat end face also depends on the specific application and load requirements. In applications with high load requirements, the bearing seat end face is positioned in a way that reduces the risk of bearing failure. This is achieved by providing additional support by widening the diameter of the bearing housing. In cases of low load requirements, the bearing seat end face can be positioned in a standard manner without significant modifications.
In cases where the bearing seat end face needs to be adjusted, it is done by machining the housing surface. The adjustment stage is critical and requires careful consideration and measurements. Expert technicians and engineers usually carry out these adjustments to ensure that the location of the bearing seat end face is adjusted accurately.
The positioning of the bearing seat end face determines the success of bearings installation and machine performance. The correct placement of the bearing seat end face ensures machine efficiency, longevity, and reduced downtime. Therefore, it is crucial to properly align the bearing seat end face in accordance with design specifications and load requirements. By following these guidelines, machinists will enjoy smooth, efficient machine operation for many years to come.
Bearing Seat Selection Method And Matters Needing Attention
Type of bearing seat
The type of bearing seat is usually divided into ball seat, roller seat, sliding seat, etc. Different types of bearing housings are suitable for different situations and need to be selected according to the environment and workload of the machine.
Carrying capacity
The bearing capacity is an important index for selecting the bearing seat. It is necessary to calculate the required bearing capacity according to the working load and speed of the machine to select the appropriate bearing seat. In addition, the bearing capacity is also related to the material and structure of the bearing seat.
Size
The correct bearing seat size is the key to ensure the normal operation of the machine. The required bearing seat size needs to be calculated according to the size, number and structure of the bearings to ensure that the bearings can be correctly installed and support the working load of the machine.
Temperature and environment
Bearing housing environment and temperature are the key factors affecting bearing performance and life. It is necessary to select the appropriate bearing seat according to the use environment and working temperature of the machine to ensure that it can work properly in harsh working environments.
Orientation and positioning method
In the machine, the bearing seat not only needs to support the bearing, but also needs to be positioned and guided. Choosing the right guiding and positioning method can improve the accuracy and stability of the machine, but also effectively extend the life of the bearing and housing.
How to Install the Bearing Housing
First, use the press to press the bearing onto the shaft, then put the shaft and bearing into the housing at the same time. This method is applicable when the bearing inner ring end face is pressed in. If the fit between the inner ring and the shaft is loose, the bearing can be pressed into the hole of the housing first. It should be noted that the outer diameter of the equipment sleeve should be smaller than the outer diameter of the housing and the diameter of the seat hole should be appropriate to ensure a tight fit between the outer ring of the bearing and the housing. If the bearing sleeve has a tight fit with the shaft and seat bore, it is necessary to press the inner and outer rings into the seat bore of the shaft and seat at the same time.
This is a common, labor-saving installation method that changes a tight fit into a loose fit through the thermal expansion of a bearing heater. Firstly, put the bearing or separating bearing collar into the oil tank to heat up, the oil temperature should be in the range of 80-100℃. Immediately after heating, the housing is put on the shaft to prevent the bearing from cooling. If the end face of the inner ring does not fit tightly with the shaft shoulder, it can be axially tightened again. It should be noted that when the bearing housing is heated by the oil tank, the bearing should not be placed directly on the bottom of the tank, but should be placed on the bottom of the tank at a fixed distance from the grill, or the bearing should be suspended directly by hooks,. The oil temperature shall not exceed 100℃.
Installing the tightening sleeve and retreating sleeve on the tapered surface of the bearing housing, or installing the tapered hole bearing device on the tapered journal. This method is suitable for the need to adjust the radial clearance of the bearing to balance the tightness of the bearing housing. The radial clearance of the bearing should be measured before the equipment is used, and the clearance should be measured regularly during the operation of the equipment until the required clearance reduction is achieved.
For the installation of thrust bearings, first of all, the center shaft of the bidirectional thrust bearing is fixed on the shaft to prevent the bearing housing from rolling on the shaft. The fit between the inner ring of the bearing and the shaft is interference fit, and the fit between the collar and the bearing chamber belongs to clearance fit.
Our Factory
Zhangjiagang Xinshuo Machinery Co., Ltd. was established in December 2012. The company is located in Zhangjiagang, Suzhou, a national health city. It is a CNC enterprise integrating R&D, production, sales and service. After years of development, we have an experienced team Our high-level professional technical team owns many high-end brand products from Europe, America, Japan, Korea and Taiwan, and is able to provide our customers with high-quality CNC processing solutions. We are committed to the mechanical parts processing market and provide well-known CNC equipment manufacturers and automation companies in South Korea, China and other countries. Provide precision parts processing and manufacturing.
Xinshuo Machinery is committed to creating maximum value for customers and continuing to innovate. It adheres to the business principle of centering on the core needs of customers and the business philosophy of professionalism, innovation, co-creation and sharing, uses numbers to quantify value, and builds a benchmark in the CNC industry.
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