Place of Origin | Hongkong.china |
Type | BALL |
Structure | Deep Groove |
Model Number | 608 |
Seals Type | ZZ ZRS |
Product name | 7021AC |
Material | Chrome Steel |
Application | Machinery |
Size | 5* 15* 6mm |
Weight | 0.02kg |
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 | 20689 Piece/Pieces per Day |
Quantity (pieces) | > 75742 |
Lead time (days) | 4~11 days |
Bore Size | 73.54 - 82 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 |
7021AC bearings FAQs Guide Our 7021AC 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 7021AC 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 7021AC bearings handle shock and vibration?
3.How do 7021AC bearingss handle high-speed rotations?
4.What are the common causes of 7021AC bearings failure?
5.Can 7021AC bearingss be used in applications with high axial thrust?
6.What are the differences between sealed and open 7021AC bearingss?
7.About 7021AC bearings production equipment
8.What is the impact of misaligned 7021AC bearings on machinery?
9.How does the 7021AC bearings material affect its performance and durability?
10.About the scale of 7021AC bearings factory
11.How do 7021AC bearings help in reducing wear and tear of moving parts?
12.What is 7021AC bearings in mechanical engineering?
13.How do you properly store and handle spare 7021AC bearings?
1.How do 7021AC bearingss handle corrosive environments?
We adhere to the principle of quality first and have a complete production quality management system and quality inspection process
Bearings can handle corrosive environments by using corrosion-resistant materials such as stainless steel, chrome steel, and ceramic
Additionally, bearings can be coated with a corrosion-resistant material such as zinc or a lubricant to protect them from corrosion
2.How do 7021AC bearings handle shock and vibration?
We are a new 7021ACBearings manufacturer
Bearings are designed to handle shock and vibration by using a combination of materials and design features
The bearing components are typically made of hardened steel, which is able to withstand high levels of shock and vibration
The bearing design also includes features such as lubrication grooves, which help to reduce friction and wear, and internal clearance, which helps to absorb shock and vibration
3.How do 7021AC bearingss handle high-speed rotations?
Being one of the top 7021ACBearings manufacturers in China, We attach great importance to this detail
Bearings are designed to handle high-speed rotations by reducing friction and allowing the rotating parts to move freely
They are typically made of hardened steel and contain rolling elements such as balls or rollers that reduce friction and allow the parts to move smoothly
The rolling elements are separated by a lubricant, which helps to reduce friction and heat buildup

4.What are the common causes of 7021AC bearings failure?
We focus on our customers' needs and strive to meet their expectations, so we take this very seriously
1
Contamination: Contamination of the bearing or lubricant can cause excessive wear and premature bearing failure
2
Poor lubrication: Insufficient or improper lubrication can cause excessive wear and premature bearing failure
3
Overloading: Overloading of the bearing can cause excessive wear and premature bearing failure
4
Misalignment: Misalignment of the bearing can cause excessive wear and premature bearing failure
5
Poor installation: Poor installation of the bearing can cause excessive wear and premature bearing failure
6
Corrosion: Corrosion of the bearing can cause excessive wear and premature bearing failure
7
Fatigue: Fatigue of the bearing can cause excessive wear and premature bearing failure
5.Can 7021AC bearingss be used in applications with high axial thrust?
We have a good reputation and image in the industry
The quality and price advantage of 7021AC products is an important factor in our hard overseas market
Yes, bearings can be used in applications with high axial thrust
However, the bearing must be designed to handle the specific load and speed requirements of the application
Special thrust bearings are available that are designed to handle high axial thrust loads
6.What are the differences between sealed and open 7021AC 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

7.About 7021AC bearings production equipment
Bearing production equipment is used to manufacture bearings, which are components used in a variety of machines and equipment
This equipment is used to produce bearings of various sizes and shapes, and can include machines such as lathes, grinders, and presses
The equipment is used to shape and finish the bearing components, and to assemble them into a complete bearing
The equipment is also used to test the bearings for quality and accuracy
8.What is the impact of misaligned 7021AC 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
9.How does the 7021AC bearings material affect its performance and durability?
We enjoy high authority and influence in the industry and continue to innovate products and service models
The bearing material affects its performance and durability in several ways
The material affects the bearing's ability to resist wear, corrosion, and temperature extremes
It also affects the bearing's ability to handle loads, its lubrication requirements, and its overall life expectancy
For example, bearings made from harder materials such as steel or ceramic can handle higher loads and last longer than bearings made from softer materials such as bronze or plastic
Additionally, bearings made from materials with higher corrosion resistance can last longer in harsh environments

10.About the scale of 7021AC bearings factory
Bearing factories vary in size and scope depending on the type of bearings they produce
Some factories may specialize in producing a single type of bearing, while others may produce a wide variety of bearings for different applications
The size of the factory may also depend on the number of employees and the amount of machinery and equipment used to produce the bearings
11.How do 7021AC bearings help in reducing wear and tear of moving parts?
Our mission is to provide customers with the best solutions for 7021AC
Bearings help reduce wear and tear of moving parts by providing a smooth surface for the parts to move against
The bearing's smooth surface reduces friction, which in turn reduces wear and tear on the parts
Additionally, bearings can help absorb shock and vibration, which can also reduce wear and tear on the parts
12.What is 7021AC bearings in mechanical engineering?
We continue to improve 7021ACBearings products and processes to improve efficiency
Bearing in mechanical engineering is a device that allows for relative motion between two or more parts of a machine
Bearings are used to reduce friction between moving parts and to support and guide the motion of the parts
They are typically made of metal, plastic, or ceramic and can be found in a variety of shapes and sizes

13.How do you properly store and handle spare 7021AC bearings?
We maintain a certain amount of R&D investment every year and continuously improve operational efficiency to provide better services to our cooperative customers
1
Store spare bearings in a cool, dry place away from direct sunlight and moisture
2
Handle spare bearings with care, using clean hands and gloves to avoid contamination
3
Store bearings in their original packaging or in a sealed container to protect them from dust and dirt
4
Label the container with the bearing type and size to ensure easy identification
5
Inspect bearings for signs of wear or damage before use
6
Use the correct lubricant for the bearing type and application
7
Follow the manufacturer’s instructions for installation and maintenance
Tag:7206C,81136MPB FAG,NJ240E,52320
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.