Super-precision Bearings Suppliers, Agency - Good Price Super-precision Bearings for Sale - Sun Rises Group

Why Choose Us

High-Quality Products

The company is committed to provide high quality products that meet international standards. Its products are manufactured using quality materials from reliable suppliers.

Competitive Pricing

We offer competitive pricing for our services. We understand that our clients have different budgets, and we try to accommodate them by providing them with customized packages that meet their needs.

Environmental Sustainability

The company is committed to environmental sustainability and has taken steps to reduce its carbon footprint. The company uses environmentally friendly materials in its products and implements recycling programs to minimize waste.

Excellent Customer Service

The company has a team of experienced customer service representatives who are always ready to help customers. The company is very responsive and its representatives are knowledgeable and helpful.

What is Super-Precision Bearings

Super-precision bearings are high-precision bearings that are designed to provide ultra-high accuracy and reliability in demanding applications. They are used in a wide range of industries such as aerospace, medical equipment, and machine tools, where precision is critical. These bearings are manufactured with advanced materials, coatings, and lubricants to provide exceptional performance and long service life. They are capable of operating at high speeds, with low noise and vibration levels, and low heat generation. Super-precision bearings are available in a variety of types, including angular contact ball bearings, cylindrical roller bearings, and tapered roller bearings.

70BNC10SN24 - Precision Ceramic Angular Contact Ball Bearings
-70BNC10SN24 - Precision Ceramic Angular Contact Ball Bearings . -The Main dimension:70×110×20mm, Weight:0.597kg. -We have sufficient inventory to achieve fast delivery. -Drawing and datasheets are
Available B719/500-E-T-P4S - Spindle Bearings
-The Main dimension 500x670x78 mm;Weight:67.9 kg. -6 pieces are available in stock to achieve fast delivery. -Drawings and datasheets could always be provided for your reference. -COO/CO(Certificate
Available B71992-E-T-P4S - Spindle Bearings
-The Main dimension 460x620x74 mm;Weight:55 kg. -23 pieces are available in stock to achieve fast delivery. -Drawings and datasheets could always be provided for your reference. -COO/CO(Certificate
Available B71968-C-T-P4S - Spindle Bearings
-The Main dimension 340x460x56 mm;Weight:22.4 kg. -88 pieces are available in stock to achieve fast delivery. -Drawings and datasheets could always be provided for your reference. -COO/CO(Certificate
Available B71960-C-T-P4S-UL - Spindle Bearings
-The Main dimension 300x420x56 mm;Weight:19.7 kg. -69 pieces are available in stock to achieve fast delivery. -Drawings and datasheets could always be provided for your reference. -COO/CO(Certificate
7201 CD/P4ADBA - Super-Precision Single Row Angular Contact Ball Bearing
-The Main dimension:12x32x20 mm;Weight:0.073 kg. -26 pieces are available in stock to achieve fast delivery. -Drawing and datasheets always could be supplied. -COO/CO(Certificate of
7219 CD/P4ADBA-Super-Precision Single Row Angular Contact Ball Bearing
-The Main dimension:95x170x64 mm;Weight:5.28 kg. -23 pieces are available in stock to achieve fast delivery. -Drawing and datasheets always could be supplied. -COO/CO(Certificate of
71804CD/P4DGB - Super-Precision Single Row Angular Contact Ball Bearing
-The Main dimension:20x32x14 mm;Weight:0.036 kg. -89 pieces are available in stock to achieve fast delivery. -Drawing and datasheets are always could be supplied. -COO/CO(Certificate of
7217CD/P4ADGB-Super-Precision Single Row Angular Contact Ball Bearing
-The Main dimension:85x150x56 mm;Weight:3.65 kg. -16 pieces are available in stock to achieve fast delivery. -Drawing and datasheets could always be supplied. -COO/CO(Certificate of
7032ACD/P4ADGB - Super-Precision Single Row Angular Contact Ball Bearings
-The Main dimension:160x240x76 mm;Weight:10.1 kg. -9 pieces are available in stock to achieve fast delivery. -Drawing and datasheets always could be supplied. -COO/CO(Certificate of
71809 CD/P4DBB - Super-Precision Single Row Angular Contact Ball Bearing
-The Main dimension:45x58x14 mm;Weight:0.078 kg. -69 pieces are available in stock to achieve fast delivery. -Drawing and datasheets always could be supplied. -COO/CO(Certificate of
7019 CD/P4ADGB - Super-Precision Single Row Angular Contact Ball Bearings
The Main dimension: 95x145x48 mm;Weight:2.38 kg. -19 pieces are available in stock to achieve fast delivery. -Drawing and datasheets always could be supplied. -COO/CO(Certificate of

First 12 3 4 5 6 7 Last

Advantages of Super-Precision Bearings

High accuracy: Super-precision bearings are designed to deliver extremely high accuracy and consistency in operation, making them ideal for precision applications that require high levels of dimensional stability and repeatability.

Low noise and vibration: Super-precision bearings are designed to minimize noise and vibration during operation, which is essential for precision applications where even minor levels of vibration or noise can cause significant performance issues.

Increased durability: Super-precision bearings are typically made using high-quality materials and manufacturing processes, which makes them more durable and longer-lasting than standard bearings.

Increased speed

Super-precision bearings can operate at much higher speeds than standard bearings, making them ideal for applications where high speed is required.

Reduced heat generation

Super-precision bearings are designed to minimize heat generation during operation, which helps to improve their performance and durability.

Improved reliability

Super-precision bearings are designed and manufactured to extremely tight tolerances, making them highly reliable and less prone to failure or breakdown.

Greater flexibility

Super-precision bearings can be used in a wide range of applications, from precision machining and robotics to aerospace and medical equipment.

Types of Super-Precision Bearings

Ball bearings

These are the most common type of super-precision bearings. They consist of an inner and outer ring with a series of balls running along a groove between them. Ball bearings are designed to handle both radial and axial loads.

Roller bearings

Roller bearings have cylindrical or tapered rollers that run between an inner and outer ring. They are particularly suited to handling heavier loads than ball bearings, but are less efficient in terms of speed.

Angular contact bearings

Angular contact bearings are designed to handle both radial and axial loads, but are designed to operate at high speeds. They have a specific contact angle between the balls and the raceway, which minimizes friction.

Thrust bearings

Thrust bearings are designed to handle axial loads only. They consist of a series of small bearings arranged in a circle around a central shaft, which allows them to handle large axial forces.

Magnetic bearings

Magnetic bearings use magnetic fields to support the load, minimizing friction and allowing for high speeds and precision. They are often used in applications where conventional bearings would fail, such as in high vacuum or high-speed environments.

Ceramic bearings

Ceramic bearings use silicon nitride or other materials for the balls and the raceways, making them more resistant to wear and corrosion. They are often used in applications such as high-speed spindles for machine tools.

Characteristics of Super-Precision Bearings

Super-precision bearings are advanced bearing solutions that are designed to provide extremely high accuracy, smooth operation, and long service life in demanding applications. Some of the key characteristics of super-precision bearings are:

01/

High Precision: Super-precision bearings are manufactured to extremely tight tolerances, ensuring that they operate with exceptional accuracy and consistency.

02/

Low Friction: Super-precision bearings utilize advanced materials and design features to reduce friction and improve the efficiency of the bearing system.

03/

High Speeds: Super-precision bearings are designed to operate at high speeds, making them ideal for applications where fast rotation is required.

04/

Low Noise: Super-precision bearings produce very little noise during operation, making them well-suited for applications where quiet operation is important.

05/

High Load Capacity: Despite their small size and high precision, super-precision bearings are capable of handling high loads, making them ideal for applications that require high levels of precision and stability.

06/

Long Service Life: Super-precision bearings are designed to provide long service life, reducing maintenance requirements and downtime.

How Super-Precision Bearings Work

Super-precision bearings are a type of high-performance bearings that are designed to operate in extremely demanding applications, such as machine tools, aerospace, medical equipment, and high-speed trains. These bearings must be able to handle high speeds, heavy loads, and precise positioning with minimal friction and wear. Here's how super-precision bearings work:

Preload

Super-precision bearings are designed with a precise amount of preload, which is the amount of internal axial force that keeps the rolling elements (balls or rollers) in contact with the raceways (inner and outer rings). The preload ensures that the bearing maintains its stiffness and accuracy under varying loads and speeds.

22334 CCKJA/W33VA405 Bearing Spherical Roller Bearings

Material selection

Super-precision bearings are made of high-grade materials, such as stainless steel, ceramic, or hybrid (ceramic balls and steel rings) to minimize thermal expansion, corrosion, and wear. The bearing cages (retainer or separator) are also made of lightweight materials, such as phenolic resin or polyamide, to reduce friction and noise.

22230 CC/W33 Bearing Spherical Roller Bearings

Lubrication

Super-precision bearings are lubricated with special greases or oils that have low viscosity and high thermal stability. The lubricant is evenly distributed in the bearing, and its flow is regulated by precision sealing systems to prevent contamination and leakage.

23230 CC/W33 Bearing Spherical Roller Bearings

Bearing design

Super-precision bearings can have different designs, such as angular contact, cylindrical, or thrust, depending on their intended use. The design features optimized raceway geometry, ball/roller size and shape, contact angle, and cage design to maximize the bearing's performance in terms of load-carrying capacity, stiffness, and accuracy.

22330 CC/W33 Bearing Spherical Roller Bearings

Monitoring and maintenance

Super-precision bearings require strict monitoring and maintenance to ensure their long service life and performance. This includes periodic inspections, cleaning, relubrication, and replacement of damaged or worn-out components. Advanced techniques, such as condition monitoring and predictive maintenance, can also be used to detect early signs of wear or defects and prevent unplanned downtime or failures.

Application Fields of Super-Precision Bearings

Super-precision bearings are high-tech components used in many applications that require exceptional accuracy, reliability, and performance. Here are some fields where super-precision bearings are essential:

Aerospace and defense

Super-precision bearings are used in the manufacturing of aircraft engines, navigation systems, and other critical aerospace components. They have excellent load-carrying capabilities and can operate in extreme temperatures, making them an ideal choice for aerospace applications.

Medical equipment

Super-precision bearings are used in medical equipment like surgical instruments, imaging machines, and dental tools. These bearings offer high stiffness, low noise, and exceptional accuracy, making them ideal for medical applications.

Robotics

Super-precision bearings are used in robots and other automated systems to ensure accurate and precise movements. These bearings enable robots to pick, place, and manipulate objects with the highest degree of accuracy.

Manufacturing

Super-precision bearings are utilized in manufacturing equipment for precision cutting, milling, and drilling operations. They are also used in machine tools such as lathes, grinders, and presses.

Semiconductor industry

The semiconductor industry relies heavily on super-precision bearings for semiconductor manufacturing equipment. The bearings allow for precise positioning and movement of the wafers and other semiconductor components during the manufacturing process.

Renewable energy

Super-precision bearings are used in wind turbines, solar panels, and other renewable energy applications. They are required for the precise rotational movement needed to generate electricity efficiently.

What Are the Specifications of Super-Precision Bearings?

Super-precision bearings are designed to meet the most stringent requirements for accuracy, speed, and stiffness. The specifications of these bearings vary depending on the application, but some common specifications include:

23032 CC/W33 Bearing Spherical Roller Bearings

1. Dimensional accuracy: Super-precision bearings are manufactured to extremely tight tolerances, with a maximum deviation from the nominal diameter of less than 1 micron.

2. Radial runout: The radial runout of a super-precision bearing refers to the deviation of the bearing's outer ring from a true circular shape. The maximum allowable radial runout is typically less than 2 microns.

3. Axial runout: The axial runout of a super-precision bearing refers to the deviation of the bearing's inner ring from a true circular shape. The maximum allowable axial runout is typically less than 2 microns.

4. Bearing clearance: The amount of play between the rolling elements and the raceway is known as bearing clearance. Super-precision bearings are designed to have very low clearance, typically less than 1 micron.

5. Contact angle: The contact angle between the rolling elements and the raceway is critical to the performance of a super-precision bearing. The optimal contact angle varies depending on the type of bearing and the application.

6. Cage design: The cage of a super-precision bearing is designed to minimize friction and wear, while maintaining the correct spacing between the rolling elements. Different cage designs are used for different types of bearings.

7. Lubrication: Super-precision bearings require very precise lubrication to prevent wear and reduce friction. High-quality lubricants are used, and the bearings are often designed to operate with minimal lubrication.

8. Radial stiffness: The ability of a bearing to resist deformation under radial load is known as radial stiffness. Super-precision bearings are designed to have very high radial stiffness, which helps to maintain accuracy and reduce vibration.

9. Axial stiffness: The ability of a bearing to resist deformation under axial load is known as axial stiffness. Super-precision bearings are designed to have very high axial stiffness, which helps to maintain accuracy and reduce vibration.

Super-Precision Bearings Manufacturing Process

Super-precision bearings are high-precision mechanical components that are used in critical applications such as aerospace, medical, and semiconductor manufacturing. The manufacturing process of super-precision bearings involves several steps that require high levels of precision and control.

Material Selection

The first step in the manufacturing process is selecting the appropriate materials. The materials used in super-precision bearings are typically high-grade steel or ceramic.

Machining

Once the materials are selected, the bearing components are machined with high precision to achieve the required dimensions and tolerances. The main components of a super-precision bearing are typically the inner and outer races, rolling elements, and retainers.

Grinding

After machining, the bearing components are ground to achieve the required surface finish and roundness. Grinding is a critical process that requires high levels of precision and control.

Assembly

The bearing components are then assembled into the final product, typically in a clean room environment to ensure contamination-free assembly.

Testing and Inspection

Once the bearings are assembled, they are tested and inspected to ensure that they meet the required specifications. This typically involves measuring various parameters such as roundness, runout, and vibration.

Lubrication

Finally, the bearings are lubricated with high-performance lubricants to ensure optimal performance and long life.

24032 CC/W33 Bearing Spherical Roller Bearings

What Are the Uses of Super-Precision Bearings?

Super-precision bearings are used in a variety of applications where high accuracy, reliability, and speed are crucial. Some common uses include:

Machine tool spindles: High-speed super-precision bearings are used in machine tool spindles to support the cutting tool and provide precise positioning and accuracy during machining operations.

Aerospace and defense: Super-precision bearings are used in critical aerospace and defense applications, such as aircraft engines, helicopter rotors, and missile guidance systems.

Medical equipment: Super-precision bearings are used in medical equipment such as surgical instruments, imaging machines, and dental drills, where precision and accuracy are essential for safe and effective operation.

Robotics

Super-precision bearings are used in robotic systems to provide precise positioning and movement control, enabling robots to perform complex tasks with high accuracy.

Semiconductor manufacturing

Super-precision bearings are used in semiconductor manufacturing equipment to control the movement and positioning of wafer handling systems and other precision components.

Printing presses

Super-precision bearings are used in printing presses to ensure precise registration and alignment of the printing plates, resulting in high-quality printed output.

Automotive industry

Super-precision bearings are used in automotive applications such as electric power steering systems, transmissions, and engine components, where reliability and high performance are critical.

Super-Precision Bearings Maintenance Tips

1. Lubrication: Ensure that the bearings are properly lubricated at all times. The type of lubricant used and the frequency of lubrication depends on the application, operating conditions, and the manufacturer's recommendations.

2. Cleanliness: Keep the bearings clean and free of debris, dirt and dust. This will help prevent premature wear and damage.

3. Handling: Handle the bearings with care during installation and removal. Use appropriate tools and avoid damaging the bearing surface or raceways.

4. Storage: Store the bearings in a clean and dry environment. Avoid exposure to moisture, excessive heat, or corrosive substances.

5. Inspection: Inspect the bearings regularly for signs of wear or damage. Friction, noise, or unusual vibrations are all indicators that the bearings may need repair or replacement.

6. Alignment: Ensure proper alignment of the shaft and the bearing to prevent excessive loading and premature wear.

7. Replacement: Replace the bearings when necessary to avoid catastrophic failure or costly downtime.

8. Training: Ensure that all personnel responsible for bearing maintenance are properly trained in the correct procedures and techniques.

9. Documentation: Maintain accurate maintenance records to track bearing performance and monitor service intervals.

10. OEM Recommendations: Follow the manufacturer's recommendations for bearing maintenance and replacement to ensure optimal performance and longevity.

The Considerations for Buying Super-Precision Bearings

Accuracy requirements

Super-precision bearings are designed to provide extremely high accuracy and low noise levels. Buyers should assess the specific accuracy requirements of their application to ensure they select the appropriate bearing.

RKS.121390101002 Bearing Mexico Brazil Agency

Load capacity

It is vital to consider the load capacity of the bearing being purchased. Buyers should take into account the expected load and ensure that the chosen bearing can handle the load without causing damage or premature wear.

Speed capability

The speed capability of the bearing should also be taken into account to ensure that it is suitable for the intended application. Factors such as rotational speed, stiffness, and type of lubricant used also play an important role.

Material selection

Super-precision bearings are often made with high-performance materials that offer improved functionality, strength, and durability. Buyers should consider the material used and select one suitable for their application.

Contact angle

The contact angle of the bearing is another critical factor to consider. The contact angle determines the amount of load that the bearing can accommodate and the speed at which it can rotate.

Cost

The cost of super-precision bearings can vary considerably between suppliers. Buyers should consider the cost-effectiveness of each option and select one that meets their requirements while staying within their budget.

Materials for Ultra-Precision Bearings

Ultra-precision bearings require high-quality materials that are strong, rigid, and wear-resistant. Some common materials used in ultra-precision bearings include:

Steel: Steel is the most commonly used material for ultra-precision bearings. High-carbon or stainless steel is used to make bearing rings, balls, and cages. Steel bearings are able to withstand high loads and offer excellent rigidity and wear resistance.

Ceramic: Ceramic bearings are gaining popularity due to their superior performance over steel bearings. Ceramic is an extremely hard and wear-resistant material that has excellent dimensional stability, making it ideal for high-precision applications. Ceramic bearings offer lower friction, reduced noise, and longer service life compared to steel bearings.

Nitrogen alloys: Nitrogen alloys are used for their exceptional strength, wear resistance, and fatigue life. They are commonly used in aerospace and high-performance applications where rotating parts are exposed to high loads and extreme pressure.

Polymeric materials: Polymer composites are used in ultra-precision bearings due to their excellent damping properties and low friction coefficient. They offer good resistance to corrosion and can withstand high temperatures.

Lubricants: Ultra-precision bearings require advanced lubricants that can operate at high speeds and temperatures. Lubricants need to resist oxidation, thermal degradation, and contamination to ensure efficient operation and long service life. Synthetic oils and greases are commonly used in ultra-precision bearings.

Our Factory

Sun-Rises Bearing Group was founded in 1986 and is one of the biggest bearing distributors based in Hong Kong.
We represented most of the renowned bearing brands, including SKF, FAG, INA, NTN, KOYO, NSK, TIMKEN, KBC, IKO, NACHI, ASAHI, FYH, NMB and THK.

FAQ

Q: What are super-precision bearings?

A: Super-precision bearings are precision-engineered bearings that are specifically designed to deliver high levels of rotating accuracy, speed, and stiffness.

Q: What are the benefits of using super-precision bearings?

A: Super-precision bearings offer several benefits, including increased machine tool accuracy, improved machine performance, longer bearing life, reduced maintenance costs, and improved productivity.

Q: What types of super-precision bearings are available?

A: Super-precision bearings are available in a wide range of types and configurations, including angular contact ball bearings, cylindrical roller bearings, and spherical roller bearings.

Q: What industries use super-precision bearings?

A: Super-precision bearings are used in a wide range of industries, including aerospace, automotive, machine tools, medical equipment, and semiconductor manufacturing.

Q: How do super-precision bearings achieve high levels of accuracy and speed?

A: Super-precision bearings achieve high levels of accuracy and speed through advanced design features, such as improved contact angles, optimized internal geometry, and advanced materials.

Q: What factors should be considered when selecting a super-precision bearing?

A: When selecting a super-precision bearing, factors to consider include the operating conditions, machinery requirements, bearing design, lubrication, and mounting and installation requirements.

Q: What is the maximum operating temperature of super-precision bearings?

A: The maximum operating temperature of super-precision bearings varies depending on the specific design and materials used. However, many super-precision bearings can operate at temperatures up to 200°C.

Q: What is the maximum speed of super-precision bearings?

A: The maximum speed of super-precision bearings varies depending on the specific design and size of the bearing. However, many super-precision bearings can achieve speeds of up to 1.5 million DN (DN = bearing bore diameter in mm x rotating speed in rpm).

Q: How are super-precision bearings lubricated?

A: Super-precision bearings can be lubricated using a variety of methods, including oil mist, oil and air lubrication, and grease. The lubrication method used will depend on the specific application and operating conditions.

Q: Can super-precision bearings be customized?

A: Yes, super-precision bearings can be customized to meet specific customer requirements, such as size, design, materials, and lubrication requirements.

Q: What is the difference between super-precision bearings and standard bearings?

A: Super-precision bearings are designed to deliver higher levels of accuracy, speed, and reliability than standard bearings. Super-precision bearings also incorporate advanced design features, materials, and lubrication methods that are not found in standard bearings.

Q: Are super-precision bearings more expensive than standard bearings?

A: Yes, super-precision bearings are typically more expensive than standard bearings due to their advanced design features, materials, and manufacturing processes.

Q: What is the typical lifespan of a super-precision bearing?

A: The lifespan of a super-precision bearing can vary depending on the specific application, operating conditions, and maintenance practices. However, many super-precision bearings can last for several years or even decades with proper maintenance.

Q: What is the maximum load capacity of super-precision bearings?

A: The maximum load capacity of a super-precision bearing varies depending on the specific design and size of the bearing. However, many super-precision bearings can handle high radial and axial loads.

Q: Can super-precision bearings be retrofitted into existing machinery?

A: Yes, super-precision bearings can be retrofitted into existing machinery in many cases. However, the feasibility of a retrofit will depend on factors such as bearing size, design, and mounting requirements.

Q: What is the role of machine tool accuracy in super-precision bearing performance?

A: Machine tool accuracy is critical to the performance of super-precision bearings, as even small deviations in machine tool accuracy can affect the performance of the bearing.

Q: What is the difference between grease lubrication and oil lubrication?

A: Grease lubrication involves the application of a semi-solid lubricant to the bearing, while oil lubrication involves the circulation of a fluid lubricant through the bearing. Oil lubrication provides better cooling and can handle higher speeds, while grease lubrication is more cost-effective and requires less maintenance.

Q: Can super-precision bearings be used in high-vibration applications?

A: Yes, super-precision bearings can be used in high-vibration applications. However, special considerations may need to be taken into account with regards to bearing design, lubrication, and mounting requirements.

Q: What causes premature bearing failure in super-precision bearings?

A: Premature bearing failure in super-precision bearings can be caused by a variety of factors, such as improper lubrication, excessive loads, contamination, or damage during installation.

Q: What are some best practices for maintaining super-precision bearings?

A: Best practices for maintaining super-precision bearings include proper lubrication, regular inspections, proper mounting and installation, and avoiding excessive loads or contamination. Additionally, following the manufacturer's recommendations for maintenance and replacement intervals can help to ensure optimal performance and longevity.

We're professional super-precision bearings suppliers in China for over 30 years, as well as the agency for many world-famous bearing brands. Welcome to buy bulk super-precision bearings for sale here from our factory. All bearings are with high quality and competitive price.

Bearing 81276 M, VSA200544N Slewing Bearings, F 576869 ZL Cylindrical Roller Bearings