China wholesaler CZPT 6212-Zz/2RS/2rz Deep Groove Ball Bearing for Electric Tools manufacturer

Product Description

Product Description

Bearing No. 6212-2RS/6212-2RZ-deep groove ball bearing-radial ball bearing

·Dimensions: 60x110x22mm
·Rubber seal on both sides
·100% Chrome Steel for higher resistance and durability
·Supports 6000 rpm with grease, 7000 rpm with oil
·Our high-quality bearing is made to reduce your replacement frequency and maintenance cost

Specifications for this item

Bearing Type: deep groove ball bearing-high speed electric motor bearing,water pump bearing
Brand: HXB or OEM brand
Material: chrome steel GCr15, AISL52100, SUJ2
Part No.: 6212-2RS, 6212-2RZ, 6212-DD,6212-DDU,6212-LLU
Clearance: C2, CM, C0, C3
Vibration: ZV2,ZV3,ZV4
Precision Class: P0, P6, P5, ABEC-1, ABEC-3,ABEC-5
Application: electric motor, motorcycle, household appliance, electric tools, water pump

 

Bearing Number Boundary dimensions(mm) Load Rating(KN) Limiting Speed(rpm) Weight(kg)
d D B rmin Cr Cor Grease Oil
6000 10 26 8 0.3  4.55  1.96  29000 34000 0.019 
6200 30 9 0.6  5.10  2.39  25000 30000 0.032 
6300 35 11 0.6  8.20  3.50  23000 27000 0.052 
6001 12 28 8 0.3  5.10  2.39  26000 30000 0.571 
6201 32 10 0.6  6.10  2.75  22000 26000 0.035 
6301 37 12 1.0  9.70  4.20  20000 24000 0.051 
6002 15 32 9 0.3  5.60  2.84  22000 26000 0.031 
6202 35 11 0.6  7.75  3.60  19000 23000 0.045 
6302 42 13 1.0  11.40  5.45  17000 21000 0.080 
6003 17 35 10 0.3  6.80  3.35  20000 24000 0.040 
6203 40 12 0.6  9.60  4.60  18000 21000 0.064 
6303 47 14 1.0  13.50  6.55  16000 19000 0.109 
6004 20 42 12 0.6  9.40  5.05  18000 21000 0.068 
6204 47 14 1.0  12.80  6.65  16000 18000 0.103 
6304 52 15 1.1  15.90  7.90  14000 17000 0.142 
6005 25 47 12 0.6  10.10  5.85  15000 18000 0.078 
6205 52 15 1.0  14.00  7.85  13000 15000 0.127 
6305 62 17 1.1  21.20  10.90  12000 14000 0.219 
6006 30 55 13 1.0  13.20  8.30  13000 15000 0.110 
6206 62 16 1.0  19.50  11.30  11000 13000 0.200 
6306 72 19 1.1  26.70  15.00  10000 12000 0.349 
6007 35 62 14 1.0  16.00  10.30  12000 14000 0.148 
6207 72 17 1.1  25.70  15.30  9800 11000 0.288 
6307 80 21 1.5  33.50  19.10  8800 10000 0.455 
6008 40 68 15 1.0  16.80  11.50  10000 12000 0.185 
6208 80 18 1.1  29.10  17.80  8700 10000 0.368 
6308 90 23 1.5  40.50  24.00  7800 92000 0.639 
6009 45 75 16 1.0  21.00  15.10  9200 11000 0.230 
6209 85 19 1.1  32.50  20.40  7800 9200 0.414 
6309 100 25 1.5  53.00  32.00  7000 8200 0.837 
6571 50 80 16 1.0  21.80  16.60  8400 9800 0.258 
6210 90 20 1.1  35.00  23.20  7100 8300 0.463 
6310 110 27 2.0  62.00  38.50  6400 7500 1.082 
6011 55 90 18 1.1  28.30  21.20  7700 9000 0.383 
6211 100 21 1.5  43.50  29.20  6400 7600 0.603 
6311 120 29 2.0  71.50  45.00  5800 6800 1.355 
6012 60 95 18 1.1  29.50  23.20  7000 8300 0.391 
6212 110 22 1.5  52.50  36.00  6000 7000 0.780 
6312 130 31 2.1  82.00  52.00  5400 6300 1.710 
6013 65 100 18 1.1 30.5 25.2 6500 7700 0.41
6213 120 23 1.5 57.5 40 5500 6500 0.957
6313 140 33 2.1 92.5 60 4900 5800 2.1
6014 70 110 20 1.1  38.00  31.00  6100 7100 0.575 
6214 125 24 1.5  62.00  44.00  5100 6000 1.100 
6314 150 35 2.1  104.00  68.00  4600 5400 2.550 

Application

 

Company Profile

Established in 1995, as a leading ball bearing manufacturer in China, HXB offers more than 1,000 kinds of ball bearing to fulfill our customers’ needs. With excellent production team and technical team, we can supply high quality products consistently.
After more than 20 years of development, HXB’s main products involves deep groove ball bearings, angular contact ball bearings, high precision spindle bearings, etc. Our bearings are wildly used in electric motors, machinery tool spindle, CNC, NEVs and other fields.
 

Certificates

Package

Exibition

FQA

1. Are you trading company or manufacturer?
    We are factory more than 28 years.
2. What application do your products involved in?
    Our products application fields mainly include motor, water pumps, household appliances, automobiles, motorcycles, power tools, engraving machines,reducers, machine tools, CNC machine centers, textile machinery, woodworking machinery, ets.
3. Can you make OEM products?
  Yes, we can do OEM according to clients needs, develop and produce products according to drawings or sample provided by clients. We also have our brand HXB or YJB.
4. Does your company have quality assurance? 
   Yes, for 1 year.
5. What’s the competitiveness of your company’s products compared to the companies?
   High precision, high speed, low noise.
6. How does the goods ship to customer?
   By sea, by train, by air or express.
7.What is the production capacity of your company?
  We have 48 productions lines. Annual output has reached 33,000,000pcs.

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Contact Angle: 0
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel
Precision Class: P6
Noise&Vibration: Zv3
Samples:
US$ 1/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

ball bearing

How does Preload Affect the Performance and Efficiency of Ball Bearings?

Preload is a crucial factor in ball bearing design that significantly impacts the performance, efficiency, and overall behavior of the bearings in various applications. Preload refers to the intentional axial force applied to the bearing’s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here’s how preload affects ball bearing performance:

  • Reduction of Internal Clearance:

Applying preload reduces the internal clearance between the rolling elements and the raceways. This eliminates play within the bearing, ensuring that the rolling elements are in constant contact with the raceways. This reduced internal clearance enhances precision and reduces vibrations during operation.

  • Increased Stiffness:

Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing’s ability to handle axial and radial loads with higher accuracy and minimal deflection.

  • Minimized Axial Play:

Preload minimizes or eliminates axial play within the bearing. This is especially important in applications where axial movement needs to be minimized, such as machine tool spindles and precision instruments.

  • Enhanced Rigidity:

The stiffness resulting from preload enhances the bearing’s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.

  • Reduction in Ball Slippage:

Preload reduces the likelihood of ball slippage within the bearing, ensuring consistent contact between the rolling elements and the raceways. This leads to improved efficiency and better load distribution.

  • Improved Running Accuracy:

Preloading enhances the running accuracy of the bearing, ensuring that it maintains precise rotational characteristics even under varying loads and speeds. This is essential for applications requiring high accuracy and repeatability.

  • Optimized Performance at High Speeds:

Preload helps prevent skidding and slipping of the rolling elements during high-speed operation. This ensures that the bearing remains stable, reducing the risk of noise, vibration, and premature wear.

  • Impact on Friction and Heat Generation:

While preload reduces internal clearance and friction, excessive preload can lead to higher friction and increased heat generation. A balance must be struck between optimal preload and minimizing friction-related issues.

  • Application-Specific Considerations:

The appropriate amount of preload depends on the application’s requirements, such as load, speed, accuracy, and operating conditions. Over-preloading can lead to increased stress and premature bearing failure, while under-preloading may result in inadequate rigidity and reduced performance.

Overall, preload plays a critical role in optimizing the performance, accuracy, and efficiency of ball bearings. Engineers must carefully determine the right preload level for their specific applications to achieve the desired performance characteristics and avoid potential issues related to overloading or inadequate rigidity.

ball bearing

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?

Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:

  • Effective Sealing:

Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.

  • Clean Environment:

Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.

  • Proper Handling:

Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.

  • Clean Tools and Equipment:

Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.

  • Contamination-Controlled Workstations:

Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.

  • Proper Lubrication:

Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.

  • Regular Inspections:

Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.

  • Training and Education:

Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.

  • Environmental Controls:

In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.

  • Regular Cleaning and Maintenance:

Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.

  • Selection of Suitable Bearings:

Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.

By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

ball bearing

Can you Explain the Various Types of Ball Bearings and their Specific Use Cases?

Ball bearings come in various types, each designed to meet specific application requirements. Here’s an overview of the different types of ball bearings and their specific use cases:

  • Deep Groove Ball Bearings:

Deep groove ball bearings are the most common and versatile type. They have a deep raceway that allows them to handle both radial and axial loads. They are used in a wide range of applications, including electric motors, household appliances, automotive components, and industrial machinery.

  • Angular Contact Ball Bearings:

Angular contact ball bearings have a contact angle that enables them to handle both radial and axial loads at specific angles. They are suitable for applications where combined loads or thrust loads need to be supported, such as in machine tool spindles, pumps, and agricultural equipment.

  • Self-Aligning Ball Bearings:

Self-aligning ball bearings have two rows of balls and are designed to accommodate misalignment between the shaft and the housing. They are used in applications where shaft deflection or misalignment is common, such as conveyor systems, textile machinery, and paper mills.

  • Thrust Ball Bearings:

Thrust ball bearings are designed to support axial loads in one direction. They are commonly used in applications where axial loads need to be supported, such as in automotive transmissions, steering systems, and crane hooks.

  • Single-Row vs. Double-Row Bearings:

Single-row ball bearings have a single set of balls and are suitable for moderate load and speed applications. Double-row ball bearings have two sets of balls and offer higher load-carrying capacity. Double-row designs are used in applications such as machine tool spindles and printing presses.

  • Miniature and Instrument Ball Bearings:

Miniature ball bearings are smaller in size and are used in applications with limited space and lower load requirements. They are commonly used in small electric motors, medical devices, and precision instruments.

  • Max-Type and Conrad Bearings:

Max-type ball bearings have a larger number of balls to increase load-carrying capacity. Conrad bearings have fewer balls and are used in applications with moderate loads and speeds.

  • High-Precision Ball Bearings:

High-precision ball bearings are designed for applications where accuracy and precision are critical, such as machine tool spindles, aerospace components, and optical instruments.

  • High-Speed Ball Bearings:

High-speed ball bearings are engineered to minimize friction and accommodate rapid rotation. They are used in applications such as dental handpieces, turbochargers, and centrifuges.

In summary, the various types of ball bearings are tailored to different application requirements, including load type, direction, speed, and environmental conditions. Selecting the appropriate type of ball bearing ensures optimal performance and longevity in specific applications.

China wholesaler CZPT 6212-Zz/2RS/2rz Deep Groove Ball Bearing for Electric Tools   manufacturerChina wholesaler CZPT 6212-Zz/2RS/2rz Deep Groove Ball Bearing for Electric Tools   manufacturer
editor by CX 2024-03-30