Place of Origin | Hongkong.china |
Type | BALL |
Structure | Deep Groove |
Model Number | 608 |
Seals Type | ZZ ZRS |
Product name | QJ209 |
Material | Chrome Steel |
Application | Machinery |
Size | 4* 13* 7mm |
Weight | 0.01kg |
Samples | Support |
Feature | Low Noise. Long Life |
Package | Box |
Lubrication | Lubricating oil |
Service | OEM Customized Services |
Packaging Details | 1. tube packing 2. single box packing 3. pallet packing 4. free sample ,delivery cost by buyer |
Supply Ability | 18998 Piece/Pieces per Day |
Quantity (pieces) | > 71967 |
Lead time (days) | 4~14 days |
Bore Size | 68.92 - 87 mm |
Precision Rating | P0 P6 P5 P4 P2 |
Number of Row | Single row |
Applicable Industries | Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Home Use, Retail, Construction works , Energy & Mining, Other |
QJ209 bearings FAQs Guide Our QJ209 bearings are essential components in various machinery and equipment, providing support and reducing friction for moving parts. With years of experience and advanced technology, we are dedicated to producing QJ209 bearings that meet the highest standards of quality, durability, and performance. Our commitment to excellence has made us a trusted supplier for industries such as automotive, aerospace, and industrial manufacturing. Let us introduce you to our diverse range of bearing products and how they can meet your specific needs.
2.How do QJ209 bearings contribute to cost savings and increased productivity in machinery?
3.How do QJ209 bearings contribute to machine efficiency?
4.What factors should be considered when choosing a QJ209 bearings?
5.What is the impact of misaligned QJ209 bearings on machinery?
6.About QJ209 bearings quality system
7.What maintenance procedures should be followed for QJ209 bearingss?
8.About QJ209 bearings delivery date
9.What are the differences between sealed and open QJ209 bearingss?
10.How do you calculate the required QJ209 bearings size for a specific load condition?
11.What is the difference between a radial and thrust QJ209 bearings?
12.What is the recommended maintenance schedule for QJ209 bearings?
13.What is the effect of speed and temperature on QJ209 bearings performance?
14.How do QJ209 bearings handle radial and axial play?
15.What is the difference between precision and non-precision QJ209 bearings?
16.How do QJ209 bearingss handle static and dynamic loads?
1.Can QJ209 bearings handle high shock and impact loads?
Yes, bearings can handle high shock and impact loads, depending on the type of bearing
Some bearings are specifically designed to handle high shock and impact loads, such as spherical roller bearings, tapered roller bearings, and angular contact ball bearings
2.How do QJ209 bearings contribute to cost savings and increased productivity in machinery?
Bearings are essential components of machinery, and they can contribute to cost savings and increased productivity in several ways
First, bearings reduce friction, which helps to reduce energy consumption and wear and tear on the machinery
This can lead to lower maintenance costs and longer machine life
Second, bearings can help to reduce vibration, which can improve the accuracy and precision of the machinery
This can lead to higher quality products and increased productivity
Finally, bearings can help to reduce noise levels, which can improve the working environment and increase worker satisfaction
3.How do QJ209 bearings contribute to machine efficiency?
We have established a good reputation and reliable partnerships within the QJ209 industry
Bearings are essential components of machines that help to reduce friction and improve efficiency
They allow parts to move smoothly and reduce the amount of energy needed to move them
By reducing friction, bearings help to reduce wear and tear on the machine, which can help to extend its life
Additionally, bearings can help to reduce noise and vibration, which can improve the overall efficiency of the machine
4.What factors should be considered when choosing a QJ209 bearings?
We should have a stable supply chain and logistics capabilities, and provide customers with high -quality, low -priced QJ209 products
1
Load: The bearing must be able to support the load it will be subjected to
2
Speed: The bearing must be able to handle the speed of the application
3
Environment: The bearing must be able to withstand the environmental conditions it will be exposed to
4
Precision: The bearing must be able to provide the necessary precision for the application
5
Lubrication: The bearing must be able to handle the lubrication requirements of the application
6
Cost: The bearing must be cost-effective for the application
7
Availability: The bearing must be readily available for the application

5.What is the impact of misaligned QJ209 bearings on machinery?
I have a comprehensive after -sales service system, which can pay attention to market trends in time and adjust our strategy in a timely manner
Misaligned bearings can cause a variety of problems in machinery, including increased vibration, increased noise, increased wear, and decreased efficiency
This can lead to premature failure of the machinery, increased maintenance costs, and decreased productivity
6.About QJ209 bearings quality system
certification
Bearing quality system certification is a process that ensures that a bearing manufacturer meets the requirements of a quality management system
This certification is typically done by an independent third-party organization, such as the International Organization for Standardization (ISO)
The certification process involves a thorough review of the bearing manufacturer's quality management system, including its processes, procedures, and documentation
The certification process also includes an on-site audit of the bearing manufacturer's facilities and processes
The certification is designed to ensure that the bearing manufacturer is producing bearings that meet the highest quality standards
7.What maintenance procedures should be followed for QJ209 bearingss?
We have the leading technology and innovation capabilities, and attach importance to employee training and development, and provide promotion opportunities
1
Regularly inspect bearings for signs of wear or damage
2
Clean bearings regularly with a soft cloth and lubricate them with a light oil or grease
3
Check the bearing seals for any signs of damage or leakage
4
Check the bearing housing for any signs of corrosion or damage
5
Check the bearing mounting surfaces for any signs of wear or damage
6
Check the bearing preload and adjust as necessary
7
Check the bearing temperature and adjust as necessary
8
Check the bearing alignment and adjust as necessary
9
Check the bearing lubrication and adjust as necessary
10
Check the bearing clearance and adjust as necessary
8.About QJ209 bearings delivery date
The delivery date of a bearing depends on the type of bearing, the quantity of bearings ordered, and the availability of the bearing
Generally, bearings can be delivered within a few days to a few weeks

9.What are the differences between sealed and open QJ209 bearingss?
We attach importance to the innovation ability and team spirit of employees, have advanced R & D facilities and laboratories, and have a good quality management system
Sealed bearings are designed to keep out dirt, dust, and other contaminants, while open bearings are not
Sealed bearings are typically more expensive than open bearings, but they are also more reliable and require less maintenance
Sealed bearings are also better suited for applications that require protection from the environment, such as in wet or dusty conditions
Open bearings are typically used in applications where the environment is not a factor, such as in low-speed applications
10.How do you calculate the required QJ209 bearings size for a specific load condition?
We focus on innovation and continuous improvement to maintain a competitive advantage
The required bearing size for a specific load condition can be calculated using the following formula:
Bearing size = (Load x Bearing Factor) / (Bearing Life x RPM)
Where:
Load = The load applied to the bearing in pounds
Bearing Factor = A factor determined by the bearing manufacturer
Bearing Life = The expected life of the bearing in hours
RPM = The speed of the bearing in revolutions per minute
11.What is the difference between a radial and thrust QJ209 bearings?
A radial bearing is designed to support a load that is perpendicular to the shaft, while a thrust bearing is designed to support a load that is parallel to the shaft
Radial bearings are typically used in applications such as electric motors, pumps, and compressors, while thrust bearings are used in applications such as turbines, gearboxes, and automotive transmissions
12.What is the recommended maintenance schedule for QJ209 bearings?
The recommended maintenance schedule for bearings depends on the type of bearing and the application
Generally, bearings should be inspected and lubricated at least once a year, or more frequently if the application is in a harsh environment
Additionally, bearings should be replaced when they show signs of wear or damage

13.What is the effect of speed and temperature on QJ209 bearings performance?
We should perform well in market competition, and the prices of QJ209 products have a great competitive advantage
Speed and temperature can have a significant effect on bearing performance
High speeds can cause increased friction and heat, which can lead to premature bearing failure
High temperatures can cause lubricants to break down, leading to increased friction and wear
Low temperatures can cause lubricants to thicken, leading to increased friction and wear
In general, bearings should be operated within the manufacturer's recommended speed and temperature range to ensure optimal performance
14.How do QJ209 bearings handle radial and axial play?
Bearings are designed to handle radial and axial play by using a combination of rolling elements, such as balls or rollers, and a cage or retainer to keep the elements in place
The rolling elements are designed to move freely within the bearing, allowing for a certain amount of radial and axial play
The cage or retainer helps to keep the elements in place and prevent them from moving too far, which could cause damage to the bearing
15.What is the difference between precision and non-precision QJ209 bearings?
We have a first -class management team, and we pay attention to teamwork to achieve common goals
Precision bearings are designed to provide higher levels of accuracy, repeatability, and durability than non-precision bearings
Precision bearings are typically used in applications that require higher levels of accuracy and repeatability, such as in medical and aerospace applications
Non-precision bearings are designed for general-purpose applications and are typically less expensive than precision bearings
Non-precision bearings are typically used in applications that do not require high levels of accuracy or repeatability, such as in automotive and industrial applications
16.How do QJ209 bearingss handle static and dynamic loads?
We pay attention to the introduction and training of talents, scientifically regulate the management system, and focus on cultural construction and team cohesion
Bearings are designed to handle both static and dynamic loads
Static loads are those that remain constant over time, such as the weight of a machine or the force of gravity
Dynamic loads are those that change over time, such as the force of a rotating shaft or the vibration of a machine
Bearings are designed to handle both types of loads by providing a smooth, low-friction surface for the load to move over
The bearing's design also helps to reduce the amount of wear and tear on the load-bearing components

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Free Delivery
Orders from 70,00 Euro will be shipped free of charge within Germany and to Austria with GLS! Up to 69,99 Euro order volume we charge only 3,90 Euro with GLS. For shipment with DHL GoGreen within Germany we charge only 5,90 Euro up to 69,99 Euro order volume or 2,00 Euro for orders from 70,00 Euro.
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Returns
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