Place of Origin | Hongkong.china |
Type | BALL |
Structure | Deep Groove |
Model Number | 608 |
Seals Type | ZZ ZRS |
Product name | QJ212 |
Material | Chrome Steel |
Application | Machinery |
Size | 3* 11* 6mm |
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 | 37140 Piece/Pieces per Day |
Quantity (pieces) | > 61869 |
Lead time (days) | 4~14 days |
Bore Size | 79.59 - 80 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 |
QJ212 bearings FAQs Guide Our QJ212 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 QJ212 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.What are the safety precautions to be taken while handling QJ212 bearings?
3.What are the factors that affect QJ212 bearings service life?
4.How do QJ212 bearings contribute to cost savings and increased productivity in machinery?
5.About the development history of QJ212 bearings factory
6.What maintenance procedures should be followed for QJ212 bearingss?
7.How do you measure and specify QJ212 bearings tolerances?
8.How do you troubleshoot QJ212 bearings issues?
9.Can QJ212 bearings be repaired or do they need to be replaced?
10.How do QJ212 bearings contribute to noise reduction in machinery?
11.How do you select the right grease for a QJ212 bearings?
12.What is the difference between a radial and thrust QJ212 bearings?
13.Can improper installation affect QJ212 bearings performance?
14.How does the size and design of a QJ212 bearings affect its performance?
15.How do you determine QJ212 bearings load capacity?
1.About QJ212 bearings production capacity
Bearing production capacity is determined by the size and complexity of the bearing, the type of material used, and the production process
The capacity of a bearing production line is typically determined by the number of machines and the speed of the production line
The capacity of a bearing production line can range from a few hundred pieces per hour to several thousand pieces per hour
2.What are the safety precautions to be taken while handling QJ212 bearings?
1
Wear protective gloves and safety glasses when handling bearings
2
Use a hoist or other lifting device to move heavy bearings
3
Keep bearings away from moisture and extreme temperatures
4
Use a clean, dry cloth to wipe off any dirt or debris from the bearing
5
Use a bearing puller to remove bearings from their housings
6
Inspect bearings for any signs of wear or damage before installation
7
Use the correct tools and techniques when installing bearings
8
Securely fasten bearings in their housings
9
Lubricate bearings according to the manufacturer’s instructions
10
Regularly inspect bearings for signs of wear or damage
3.What are the factors that affect QJ212 bearings service life?
1
Bearing type: Different types of bearings have different service lives
2
Operating conditions: The operating conditions of the bearing, such as speed, load, temperature, and lubrication, can affect its service life
3
Quality of the bearing: The quality of the bearing, such as the material used and the manufacturing process, can affect its service life
4
Maintenance: Regular maintenance and inspection of the bearing can help to extend its service life
5
Environment: The environment in which the bearing is used can affect its service life
4.How do QJ212 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
5.About the development history of QJ212 bearings factory
The history of bearing factories dates back to the early 19th century, when the first bearing factories were established in Europe
The first bearing factories were established in England, France, and Germany
These factories produced bearings for use in a variety of industries, including the automotive, agricultural, and industrial sectors
In the early 20th century, bearing factories began to expand their production capabilities to include more specialized bearings
This allowed them to produce bearings for specific applications, such as those used in aircraft engines and other high-performance machinery
In the 1950s, bearing factories began to develop new technologies to improve the quality and performance of their products
This included the development of new materials, such as stainless steel and ceramic, as well as the introduction of computer-aided design and manufacturing processes
Today, bearing factories are still a major part of the global economy
They produce a wide range of bearings for a variety of industries, including automotive, aerospace, and industrial applications
Many of these factories are now owned by large multinational corporations, which have invested heavily in research and development to ensure that their products remain competitive in the global market

6.What maintenance procedures should be followed for QJ212 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
7.How do you measure and specify QJ212 bearings tolerances?
As one of the QJ212Bearings market leaders, we are known for innovation and reliability
Bearing tolerances are typically measured in micrometers (μm) and specified in accordance with ISO or ABMA standards
The most common bearing tolerances are radial internal clearance, radial runout, axial runout, and radial clearance
Radial internal clearance is the difference between the inner and outer diameter of the bearing, and is typically specified in micrometers
Radial runout is the difference between the inner and outer diameter of the bearing when it is rotated, and is typically specified in micrometers
Axial runout is the difference between the inner and outer diameter of the bearing when it is rotated in the axial direction, and is typically specified in micrometers
Radial clearance is the difference between the inner and outer diameter of the bearing when it is rotated in the radial direction, and is typically specified in micrometers
8.How do you troubleshoot QJ212 bearings issues?
We have advantages in marketing and channel expansion
Suppliers have established good cooperative relations, continuously improved workflows, improved efficiency and productivity, and provided customers with high -quality products and services
1
Inspect the bearing for signs of wear or damage
2
Check the lubrication levels and condition of the bearing
3
Check the alignment of the bearing and its components
4
Check the mounting and installation of the bearing
5
Check the operating environment of the bearing
6
Check the speed and load of the bearing
7
Check the vibration levels of the bearing
8
Check the temperature of the bearing
9
Check the noise levels of the bearing
10
Check the electrical connections of the bearing
9.Can QJ212 bearings be repaired or do they need to be replaced?
We pay attention to user experience and product quality, and provide the best product quality and lowest production cost for cooperative customers
In some cases, bearings can be repaired, but it depends on the type of bearing and the extent of the damage
In general, if the bearing is severely damaged, it is best to replace it
10.How do QJ212 bearings contribute to noise reduction in machinery?
Our products & services cover a wide range of areas and meet the needs of different fields
Bearings reduce noise in machinery by providing a smooth, low-friction surface for the moving parts to glide over
This reduces the amount of vibration and friction between the parts, which in turn reduces the amount of noise generated
Additionally, bearings can be designed to absorb some of the noise generated by the machinery, further reducing the overall noise level

11.How do you select the right grease for a QJ212 bearings?
1
Determine the bearing type and operating conditions
Consider the bearing type, load, speed, temperature, and environment
2
Select a grease based on the bearing type and operating conditions
Consider the base oil viscosity, thickener type, and additives
3
Check the compatibility of the grease with the bearing material
4
Check the compatibility of the grease with other components in the system
5
Consider the cost and availability of the grease
12.What is the difference between a radial and thrust QJ212 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
13.Can improper installation affect QJ212 bearings performance?
We have flexible production capacity
Whether you are large orders or small orders, you can produce and release goods in a timely manner to meet customer needs
Yes, improper installation can affect bearing performance
If a bearing is not installed correctly, it can cause premature failure, increased vibration, and increased noise
Improper installation can also cause misalignment, which can lead to increased friction and wear
14.How does the size and design of a QJ212 bearings affect its performance?
We continue to invest in research and development and continue to launch innovative products
The size and design of a bearing can affect its performance in several ways
The size of the bearing affects the load capacity, speed, and accuracy of the bearing
A larger bearing can handle higher loads, run at higher speeds, and be more accurate than a smaller bearing
The design of the bearing affects the type of load it can handle, the amount of friction it produces, and the amount of noise it generates
A bearing with a higher contact angle can handle higher radial loads, while a bearing with a lower contact angle can handle higher thrust loads
The design of the bearing also affects the amount of friction it produces, which can affect the efficiency of the system
Finally, the design of the bearing affects the amount of noise it generates, which can be important in certain applications
15.How do you determine QJ212 bearings load capacity?
We actively participate in the QJ212Bearings industry associations and organization activities
The corporate social responsibility performed well, and the focus of brand building and promotion
Bearing load capacity is determined by the bearing's dynamic load rating, which is the maximum load a bearing can withstand while rotating
This rating is determined by the bearing's size, type, and construction
The dynamic load rating is usually expressed in kilograms or pounds
Other factors that can affect bearing load capacity include the bearing's operating temperature, lubrication, and speed

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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.
Delivery Time: Ready for Shipping within 24h
We try hard to make as much orders as possible ready for shipping within 24 hours (after receiption of payment), because we generally offer only items in our online shop which we have currently on stock. The independent official seal for excellence in shipment always shows you, have fast we are currently working (make your order ready for pick-up by our logistics partner).
Delivery areas:
We deliver to the following countries: Germany, Austria, Switzerland and Belgium, Bulgaria, Denmark, Estonia, Finland, France, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Liechtenstein, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Russia, Sweden, Switzerland, Slovakia, Slovenia, Spain, Czech Republic, Hungary, USA. Please find information about delivery costs below. We usually do, but currently do NOT ship to: UK and Norway. Please visit this site frequently for updates or contact our customer service.
Returns
If a product does not meet your expectation for any reason, you can return the product without ifs and buts. To make it even more easy for you, we recommend to use the attached return form and the return stickers free of charge within 30 days of receipt. Just drop the parcel at your nearest GLS parcel shop or DHL branch (depending on the provided return label) in Germany. Of course this is not a compulsory requirement to exercise your right of withdrawal. Find more information on our website for your right of withdrawal.