Product Description

Deep Groove Ball Bearing 6308ZZCM/Nskskftimkenfag Bearing Steel Quality
NSK6308ZZCM is a common bearing model and belongs to the category of deep groove ball bearings. 

1. Model: NSK6308ZZCM
   – “NSK” indicates that the bearing is manufactured by CZPT company.
   – “ZZ” indicates a double metal shield design, providing good sealing performance.
   – “CM” indicates the internal bearing clearance is in the standard size range.

2. Type: Deep Groove Ball Bearing
   – Deep groove ball bearings are 1 of the most common types of bearings, known for their high load-carrying capacity and smooth operation.
   – They are suitable for various applications, including power tools, automotive components, machinery, etc.

3. Dimensional Parameters:
   – Inner Diameter (d): 40millimeters
   – Outer Diameter (D): 90 millimeters
   – Width (B): 23 millimeters

4. Material:
   – The inner and outer rings, as well as the rolling elements, are typically made of high-quality bearing steel to provide sufficient strength and wear resistance.

5. Features:
   – Double metal shield design (ZZ) provides effective dust and dirt protection, extending the bearing’s lifespan.
   – Standard internal bearing clearance (CM) suitable for most general applications.
   – High-quality bearing steel material provides high load-carrying capacity and wear resistance.

 

Model Bore Diameter Outer Diameter Width
6201ZZCM 12 mm 32 mm 10 mm
6202ZZCM 15 mm 35 mm 11 mm
6203ZZCM 17 mm 40 mm 12 mm
6204ZZCM 20 mm 47 mm 14 mm
6205ZZCM 25 mm 52 mm 15 mm
6206ZZCM 30 mm 62 mm 16 mm
6207ZZCM 35 mm 72 mm 17 mm
6208ZZCM 40 mm 80 mm 18 mm
6209ZZCM 45 mm 85 mm 19 mm
6210ZZCM 50 mm 90 mm 20 mm
6211ZZCM 55 mm 100 mm 21 mm 
6212ZZCM 60 mm 110 mm 22 mm
6213ZZCM 65 mm 120 mm 23 mm
6214ZZCM 70 mm 125 mm 24 mm
6215ZZCM 75 mm 130 mm 25 mm
6216ZZCM 80 mm 140 mm 26 mm
6217ZZCM 85 mm 150 mm 28 mm
6218ZZCM 90 mm 160 mm 30 mm
6219ZZCM 95 mm 170 mm 32 mm
6220ZZCM 100 mm 180 mm 34 mm
6301ZZCM 12 mm 37 mm 12 mm
6302ZZCM 15 mm 42 mm 13 mm
6303ZZCM 17 mm 47 mm 14 mm
6304ZZCM 20 mm 52 mm 15 mm
6305ZZCM 25 mm 62 mm 17 mm
6306ZZCM 30 mm 72 mm 19 mm
6307ZZCM 35 mm 80 mm 21 mm
6308ZZCM 40 mm 90 mm 23 mm
6309ZZCM 45 mm 100 mm 25 mm
6310ZZCM 50 mm 110 mm 27 mm

Applications of Deep Groove Ball Bearings:

Deep groove ball bearings are a common type of bearing with a wide range of applications. Here are some common applications of deep groove ball bearings:

1. Electric Motors and Engines: Deep groove ball bearings are commonly used in electric motors and engines to support the rotating motion of the rotor and withstand axial and radial loads.

2. Automotive Industry: Deep groove ball bearings are widely used in the automotive industry, including engine, transmission systems, suspension systems, wheels, and subframes.

3. Machinery Equipment: Deep groove ball bearings are suitable for various machinery equipment, such as industrial machinery, agricultural machinery, construction equipment, textile machinery, etc. They are used for power transmission, supporting rotating components, and reducing friction.

4. Pumps and Fans: Deep groove ball bearings are used in rotating equipment such as pumps and fans to support the rotation of the impeller and provide stable operation.

5. Household Appliances: Deep groove ball bearings are commonly found in household appliances such as washing machines, air conditioners, electric fans, etc., to support the rotation of motor rotors.

6. Industrial Transmissions: Deep groove ball bearings are used in various industrial transmission systems, such as gear transmissions, chain drives, etc., to support rotational motion and transmit torque.

7. Bicycles and Motorcycles: Deep groove ball bearings are widely used in bicycle and motorcycle wheels, steering systems, and engines.

These are just some common applications of deep groove ball bearings. In reality, deep groove ball bearings are widely used in various machinery and industries. Their simple structure and efficient performance make them an ideal choice for many rotating devices.

Deep groove ball bearings have several advantages:

1. High load-carrying capacity: Deep groove ball bearings can withstand both radial and axial loads, making them suitable for various load conditions.

2. Low friction and high efficiency: Deep groove ball bearings have a ball-and-groove structure, resulting in low frictional losses and providing high speed and operational efficiency.

3. Axial stability: The structure of deep groove ball bearings offers good axial stability, allowing them to withstand axial forces and prevent axial displacement.

4. Simplified installation and maintenance: Deep groove ball bearings have a simple structure, making them easy to install and dismantle, saving time and costs. Additionally, they often do not require additional lubrication or sealing devices.

5. Diverse applications: Deep groove ball bearings are widely used in various industries and fields, including machinery, automotive, power tools, and household appliances, meeting different application requirements.

6. High reliability and durability: Deep groove ball bearings are made of high-quality materials and undergo precision manufacturing, ensuring excellent reliability and durability to maintain stable performance during long-term operation.

In summary, deep groove ball bearings offer advantages such as high load-carrying capacity, low friction and high efficiency, axial stability, simplified installation and maintenance, diverse applications, and high reliability and durability. These characteristics make them a crucial type of bearing widely used in various industrial sectors.
 

FAQ

1.What is the minimum order quantity for this product?
Can be negotiated, we will try our best to meet customer needs.Our company is mainly based on wholesale sales, most customers’orders are more than 1 ton.

2.What is your latest delivery time?
Most orders will be shipped within 3-5 days of payment being received.

3.Does your company have quality assurance?
Yes, for 1 years.

4.Are you a factory or a trading company?
We have our own cooperative factory, and our business type is a combination of manufacturing and trading.

5.What is the competitiveness of your company’s products compared to other companies?
High precision, high speed, low noise.

6.What are the advantages of your company’s services compared to other companies?
Answer questions online 24 hours a day, reply in a timely manner,  100% after-sales service.

7.Which payment method does your company support?
Do our best to meet customer needs, Can be negotiated.

8.How to contact us quickly?
Please send us an inquiry or message and leave your other contact information, we will contact you as soon as possible and provide the detailed information you need.

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Bearing Type: Deep Groove Ball Bearing
Bore Diameter: 40mm
Outer Diameter: 90mm
Customization:
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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

steel ball bearing

Are there specific considerations for choosing steel ball bearings in applications with varying loads or operating conditions?

When selecting steel ball bearings for applications with varying loads or operating conditions, there are several specific considerations to keep in mind. The performance and longevity of the bearings depend on factors such as load magnitude, load direction, speed, temperature, and environmental conditions. Here are the key considerations for choosing steel ball bearings in such applications:

1. Load Capacity:

The load capacity of a steel ball bearing refers to its ability to withstand applied loads without excessive deformation or failure. In applications with varying loads, it’s important to consider both the static and dynamic load ratings of the bearing. The static load rating indicates the maximum load the bearing can handle when it is stationary, while the dynamic load rating represents the load it can support during continuous rotation. By comparing the expected loads in the application to the load ratings of different bearing models, you can select a bearing with an appropriate load capacity to handle the varying loads effectively.

2. Load Type and Direction:

The type and direction of the loads in the application also influence the choice of steel ball bearings. Bearings can typically handle radial loads (perpendicular to the shaft axis), axial loads (parallel to the shaft axis), or a combination of both. Depending on the specific application, you need to consider whether the loads are predominantly radial, axial, or a combination. This consideration helps determine the appropriate bearing type, such as deep groove ball bearings for radial loads, angular contact ball bearings for combined radial and axial loads, or thrust bearings for predominantly axial loads.

3. Speed Capability:

The speed capability of steel ball bearings is an essential consideration for applications with varying operating speeds. High-speed applications require bearings that can withstand the centrifugal forces and minimize frictional heat generation. Factors such as cage design, lubrication, and bearing precision contribute to the speed capability of the bearing. It’s important to select bearings specifically designed for the anticipated operating speeds to ensure reliable performance and avoid issues like excessive heat, premature wear, or bearing failure.

4. Temperature Range:

The temperature range in which the steel ball bearings will operate is a critical consideration. High temperatures can cause dimensional changes, reduced lubricant viscosity, and accelerated wear, while extremely low temperatures can affect the bearing’s material properties and lubrication characteristics. It’s important to choose bearings with appropriate heat treatment and cage materials that can withstand the anticipated temperature range. In extreme temperature conditions, specialized bearings with high-temperature grease or materials like stainless steel or ceramic may be required.

5. Environmental Factors:

Environmental factors, such as humidity, dust, chemicals, and contaminants, can significantly affect the performance and durability of steel ball bearings. In applications with varying environmental conditions, it’s crucial to consider additional protection measures, such as appropriate seals or shields, to prevent the ingress of contaminants and maintain reliable operation. Bearings with enhanced corrosion resistance or sealed designs may be necessary in harsh environments to prevent premature wear, rust, or degradation of performance.

6. Lubrication and Maintenance:

Proper lubrication is essential for the reliable operation and longevity of steel ball bearings. In applications with varying loads or operating conditions, it’s important to consider the lubrication requirements and maintenance intervals. Factors such as speed, temperature, and load magnitude influence the choice of lubricant type, viscosity, and replenishment frequency. Adequate lubrication ensures reduced friction, minimized wear, and enhanced bearing performance. It’s important to follow manufacturer recommendations and establish a regular maintenance schedule to optimize bearing life in applications with varying operating conditions.

7. Application-Specific Considerations:

Each application may have unique requirements and constraints that need to be considered when selecting steel ball bearings. Factors such as space limitations, noise restrictions, mounting considerations, and alignment requirements may influence the bearing choice. Consulting with bearing manufacturers or industry experts can help identify specific considerations and select the most suitable bearings for applications with varying loads or operating conditions.

In summary, choosing steel ball bearings for applications with varying loads or operating conditions requires careful consideration of load capacity, load type and direction, speed capability, temperature range, environmental factors, lubrication requirements, and application-specific considerations. By selecting bearings that are specifically designed to handle the anticipated conditions, you can ensure optimal performance, longevity, and reliability in your application.

steel ball bearing

What is the impact of proper lubrication and maintenance on the performance and lifespan of steel ball bearings?

Proper lubrication and maintenance have a significant impact on the performance and lifespan of steel ball bearings. Let’s explore the importance and benefits of lubrication and maintenance for steel ball bearings:

1. Reduced Friction and Wear:

Proper lubrication forms a thin film between the steel balls and the raceways of the bearing, reducing friction and minimizing wear. The lubricant acts as a protective barrier, preventing direct metal-to-metal contact and the resulting damage that can occur from excessive friction. Reduced friction and wear contribute to smoother operation, lower energy consumption, and extended lifespan of the bearing.

2. Heat Dissipation:

Lubrication helps dissipate heat generated during operation. As the steel balls roll within the bearing, heat is generated due to friction. The presence of a lubricating film helps to carry away heat from the bearing, preventing overheating and potential damage. Effective heat dissipation improves the overall performance and reliability of the bearing.

3. Contamination Protection:

Lubrication acts as a barrier against contaminants such as dust, dirt, moisture, and particles that could enter the bearing. The lubricant forms a protective layer that helps prevent the ingress of these contaminants, reducing the risk of damage and premature failure. Contamination protection is particularly crucial in harsh environments or applications where the bearing is exposed to external elements.

4. Corrosion Prevention:

Lubricants often contain additives that provide corrosion protection for steel ball bearings. These additives help to prevent corrosion and rust formation on the bearing surfaces, especially in applications where the bearing is exposed to moisture or corrosive substances. Corrosion prevention prolongs the lifespan of the bearing and maintains its performance even in corrosive environments.

5. Noise and Vibration Reduction:

Proper lubrication contributes to reducing noise and vibration in steel ball bearings. When the surfaces of the balls and raceways are well-lubricated, they can move smoothly and with minimal friction, reducing the generation of unwanted noise and vibrations. This is particularly important in applications where noise levels need to be controlled, such as precision machinery or sensitive equipment.

6. Maintenance and Inspection:

Regular maintenance and inspection of steel ball bearings allow for early detection of any potential issues or signs of wear. This includes monitoring lubrication levels, checking for contamination or damage, and ensuring proper alignment and mounting of the bearing. Timely maintenance and inspection help to identify and address problems before they escalate, preventing costly repairs, downtime, or bearing failure.

7. Extended Lifespan:

Proper lubrication and maintenance practices significantly extend the lifespan of steel ball bearings. By reducing friction, wear, and the risk of damage from contaminants or corrosion, lubrication and maintenance help to preserve the integrity and performance of the bearing over time. This leads to increased longevity, improved reliability, and reduced replacement costs.

In summary, proper lubrication and maintenance are crucial for optimizing the performance and lifespan of steel ball bearings. These practices reduce friction, prevent wear and damage, dissipate heat, protect against contamination and corrosion, minimize noise and vibration, and allow for early detection of issues. By implementing effective lubrication and maintenance strategies, equipment operators can ensure the reliable and efficient operation of machinery that relies on steel ball bearings.

steel ball bearing

Can you describe the load-carrying capacity and load ratings of steel ball bearings?

Load-carrying capacity and load ratings are important factors to consider when using steel ball bearings in mechanical systems. Let’s delve into these aspects in detail:

Load-Carrying Capacity:

Load-carrying capacity refers to the maximum amount of load that a bearing can support without experiencing excessive deformation or failure. Steel ball bearings are designed to handle both radial loads (perpendicular to the shaft) and axial loads (parallel to the shaft). The load-carrying capacity of steel ball bearings depends on various factors, including the size and number of balls, the quality of the steel used, and the design of the bearing.

Radial Load: Steel ball bearings can carry radial loads, which are forces acting perpendicular to the shaft. The load-carrying capacity for radial loads is influenced by factors such as the ball size, the number of balls, and the contact angle between the balls and the raceways. The distribution of the load across multiple balls and the ability of the balls to roll smoothly help in evenly distributing the load and preventing excessive stress on individual balls.

Axial Load: Steel ball bearings can also support axial loads, which are forces acting parallel to the shaft. Axial load-carrying capacity is determined by the design of the bearing, including factors such as the contact angle, ball size, and the presence of thrust-specific features like retainers or washers. Bearings specifically designed for axial loads, such as thrust ball bearings, are optimized to handle high axial loads while maintaining smooth motion.

Load Ratings:

Load ratings provide standardized values to help engineers and users select the appropriate bearing for a given application. The load ratings indicate the maximum loads that a bearing can carry under specific conditions without exceeding a certain level of deformation or fatigue life.

Dynamic Load Rating (C): The dynamic load rating represents the maximum radial load or axial load that a group of bearings can carry for a specified number of revolutions or operating hours, without premature failure due to fatigue. It is typically expressed in Newtons (N) or pounds-force (lbf). The dynamic load rating is important for applications with rotating or oscillating loads, as it helps determine the bearing’s suitability and expected service life under dynamic conditions.

Static Load Rating (Co): The static load rating indicates the maximum radial load or axial load that a bearing can withstand without permanent deformation. It is measured under stationary or non-rotating conditions and is typically higher than the dynamic load rating. The static load rating is crucial for applications with sustained or long-duration loads, where the bearing may experience prolonged stress without rotation.

Manufacturers provide load ratings for different types and sizes of steel ball bearings, enabling engineers to select the appropriate bearing based on the anticipated loads and operating conditions of the application.

In summary, the load-carrying capacity of steel ball bearings depends on their design and factors such as ball size, number of balls, and contact angles. Load ratings, including dynamic load ratings and static load ratings, provide standardized values to guide the selection of bearings based on their ability to support specific loads without premature failure or deformation.

China manufacturer Deep Groove Ball Bearing 6308zzcm/Nskskftimkenfag Bearing Steel Quality   with Best SalesChina manufacturer Deep Groove Ball Bearing 6308zzcm/Nskskftimkenfag Bearing Steel Quality   with Best Sales
editor by CX 2024-05-03

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