Applicable Industries | Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Retail, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Other |
Bore Size | 1 - 30 mm |
Precision Rating | Z1 Z2 Z3 |
Place of Origin | Hongkong, China |
Type | BALL |
Structure | Deep Groove |
Model Number | skf,FAG,NTAK,NTN,Iko,Koyo |
Seals Type | OPEN |
Product name | NJ221E |
ID Dia | 4- 22mm |
Thickness | 2-19mm |
Bearing type | Ball Bearing |
Stock | Rich |
OEM | Accept |
Delivery time | 8 Days |
Package | Tube / Carton Box |
Number of Row | Double row |
Supply Ability | 100166 Piece/Pieces per Month |
Quantity (pieces) | 6482 - 8691 |
Lead time (days) | 7 |
6212-Z bearings FAQs Guide Our 6212-Z 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 6212-Z 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 you ensure proper 6212-Z bearings alignment?
3.What is the advantage of using tapered roller 6212-Z bearings?
4.What is the impact of misaligned 6212-Z bearings on machinery?
5.How do you identify the cause of abnormal 6212-Z bearings noise?
6.What are the common causes of 6212-Z bearings failure?
7.How do you calculate the required 6212-Z bearings size for a specific load condition?
8.What is the difference between a ball 6212-Z bearings and a roller 6212-Z bearings?
9.How do 6212-Z bearingss handle corrosive environments?
10.What maintenance procedures should be followed for 6212-Z bearingss?
11.Can 6212-Z bearings be used in high precision applications?
12.About 6212-Z bearings production equipment
13.Can 6212-Z bearings be reused after being removed from machinery?
1.How do you select the right 6212-Z bearings for a specific application?
We have a professional team that is committed to the innovation and development of 6212-Z
1
Identify the load type and size: Determine the type and size of the load that the bearing will be supporting
This will help you determine the type of bearing that is best suited for the application
2
Consider the environment: Consider the environment in which the bearing will be used
This will help you determine the type of material and lubrication that is best suited for the application
3
Calculate the bearing size: Calculate the bearing size based on the load type and size, as well as the environment
This will help you determine the size of the bearing that is best suited for the application
4
Select the bearing type: Select the type of bearing that is best suited for the application based on the load type, size, and environment
5
Consider the bearing design: Consider the bearing design and features that are best suited for the application
This will help you determine the type of bearing that is best suited for the application
2.How do you ensure proper 6212-Z bearings alignment?
1
Use a dial indicator to measure the runout of the bearing and shaft
2
Use a straight edge to check for parallelism between the bearing and the shaft
3
Use a feeler gauge to check for the proper gap between the bearing and the shaft
4
Use a laser alignment tool to measure the angularity between the bearing and the shaft
5
Use shims to adjust the bearing alignment if necessary
6
Use a bearing alignment tool to ensure the bearing is properly aligned

3.What is the advantage of using tapered roller 6212-Z bearings?
The main advantage of using tapered roller bearings is that they can handle both radial and axial loads
They are also able to handle high loads and have a long service life
Tapered roller bearings are also able to operate at high speeds and are relatively low maintenance
4.What is the impact of misaligned 6212-Z 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

5.How do you identify the cause of abnormal 6212-Z bearings noise?
1
Listen to the noise: Identify the type of noise (e
g
squealing, grinding, etc
) and the frequency of the noise
2
Inspect the bearing: Look for signs of wear, corrosion, or other damage
3
Check the lubrication: Make sure the bearing is properly lubricated and that the lubricant is not contaminated
4
Check the alignment: Make sure the bearing is properly aligned and that the shaft is not bent or misaligned
5
Check the load: Make sure the bearing is not overloaded or underloaded
6
Check the speed: Make sure the bearing is not running too fast or too slow
7
Check the environment: Make sure the bearing is not exposed to excessive heat, vibration, or other environmental factors
6.What are the common causes of 6212-Z 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

7.How do you calculate the required 6212-Z 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
8.What is the difference between a ball 6212-Z bearings and a roller 6212-Z bearings?
We focus on providing high 6212-ZBearings quality products and services
A ball bearing is a type of bearing that uses small metal balls to reduce friction between moving parts
Ball bearings are used in a wide variety of applications, from automotive to industrial machinery
A roller bearing is a type of bearing that uses cylindrical rollers to reduce friction between moving parts
Roller bearings are typically used in applications that require higher load capacity than a ball bearing can provide

9.How do 6212-Z 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
10.What maintenance procedures should be followed for 6212-Z 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

11.Can 6212-Z bearings be used in high precision applications?
Yes, bearings can be used in high precision applications
Bearings are designed to provide precise and accurate motion control, and can be used in a variety of applications, including high precision applications
High precision bearings are designed to provide extremely precise and accurate motion control, and are often used in applications such as robotics, medical equipment, and aerospace
12.About 6212-Z 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
13.Can 6212-Z bearings be reused after being removed from machinery?
We have been working hard to improve service quality and meet customer needs
Yes, bearings can be reused after being removed from machinery, provided they are in good condition and have not been damaged
However, it is important to inspect the bearings for any signs of wear or damage before reusing them
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.