Product Description

Product Detail

Needle bearings are roller bearings with cylindrical rollers that are thin and long relative to their diameter. Such rollers are called needle rollers. Although it has a small cross-section, the bearing still has a high load-bearing capacity. Needle roller bearings are equipped with thin and long rollers, so the radial structure is compact. When the inner diameter size and load capacity are the same as other types of bearings, the outer diameter is the smallest. It is especially suitable for support structures with limited radial installation dimensions.
Needle bearing is a very important mechanical part, and its application range is very wide. Whether it is automobile, aerospace, machine tool, electric power, metallurgy and other industries, needle roller bearings are needed to support and rotate mechanical parts to ensure the safety and reliability of equipment. Therefore, the quality and performance of needle roller bearings play a vital role in mechanical equipment in all walks of life

Product Profile

model NA4030 needle bearing
inner size 40mm
outer size 50mm
width 30mm
weight 0.13kg
price 8$

model NA4834 needle bearing
inner size 170mm
outer size 215mm
width 45mm
weight 0.99kg
price 22.9$

model NA4907 needle bearing
inner size 35mm
outer size 55mm
width 20mm
weight 0.186kg
price 1.8$

Model
Company Profile
Haisai bearing is a regular model industrial manufacturing enterprise integrating bearing product research and development, design, manufacturing, import and export trade. The company was founded in 1998, covers an area of more than 90,000 square meters, plant area of more than 20,000 square meters, more than 200 employees, more than 20 technical engineers, has passed the international/SO9001:2008,1SO/TS16949:2009 and other quality management system certification. In addition, we have 2 factories (located in ZheJiang and HangZhou respectively) and a trading company. We have completed the high-speed forging of bearing steel dock, automatic high-precision grinding, cryoquenching, unitized automatic constant temperature grinding, intelligent assembly and so on, complete profession production. The product size from 30mm-750mm covers single and double row tapered roller bearing, British garden taper roller bearing, deep groove ball bearing, stainless steel shaft reducer special bearings, agricultural equipment bearings, a total of more than 2500 specifications of products.
We have a professional team of excellent quality, the technical center is equipped with all kinds of testing machines, high-precision testing instruments,material analysis instruments and more than 60 sets, for users to design develop, trial-produce all kinds of special purpose bearings, and do our best to provide high-end customers around the world with the best solutions and good after-sales service!
We has many years of experience in the industrial field of bearing supporting and industrial service, the products are exported to the United States, Germany, Italy, France, the Czech Republic, Russia and other European and American countries and supporting enterprises. We both at home and abroad enjoy a good business reputation!
We promise to be responsible for every set of bearings and industrial products sold! Make every customer satisfied, is our constant pursuit!
Company Detail
Professional Testing

Digital Workshop

Packing
Stock

Certification

Our company is a large-scale industrial manufacturing enterprise integrating bearing product research and development, design, manufacture, import and export trade. The company was established in 1998, covers an area of more than 90,000 square meters, plant area of more than 20,000 square meters, more than 200 employees, more than 20 technical engineers, has passed the international / SO9001: 2008, 1SO/TS16949: 2009 and other quality management system certification.
The company has a length gauge, profilometer, roundness gauge, hardness gauge, 3D imager, vibration gauge, flaw detector, metallurgical microscope and other inspection instruments to meet the product performance test and 100% of the raw material ultrasonic flaw detection, dimensional and morphological accuracy inspection, large bearings, magnetic particle flaw detection requirements.
The company has an excellent quality of professional team, the technical center is equipped with various types of testing machines, high-precision testing instruments, material analysis instruments, such as more than 60 units, for the user design, development, trial production of various types of special-purpose bearings, and make every effort to provide the world’s high-end customers with the best solutions and good after-sales service!

Transport

Q&A

Q:What’s your after-sales service and warranty?
A: We promise to bear the following responsibilities when defective products were found:
1. Replacements would be sent with goods of your next order;
2. Refund for defective products if customers require.

Q:Do you accept ODM&OEM orders?
A: Yes, we provide ODM&OEM services to worldwide customers, we also customize OEM box and packing as your requirements.

Q:What’s the MOQ?
A: MOQ is 10pcs for standardized products; for customized products, MOQ should be negotiated in advance. There is no MOQ for sample orders.

Q:How long is the lead time?
A: The lead time for sample orders is 3-5 days, for bulk orders is 5-15 days.

Q:Do you offer free samples? 
A: Yes we offer free samples to distributors and wholesalers, however customers should bear freight. We DO NOT offer free samples to end users. 

Q:How to place order?
A: 1. Email us the model, brand and quantity,shipping way of bearings and we will quote our best price for you; 
2. Proforma Invoice made and sent to you as the price agreed by both parts; 
3. Deposit Payment after confirming the PI and we arrange production; 
4. Balance paid before shipment or after copy of Bill of Loading. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Cage: With Cage
Rows Number: Single
Load Direction: Radial Bearing
Style: With Outer Ring
Material: Bearing Steel
Type: Open
Samples:
US$ 0.6/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

steel ball bearing

What is the role of cage design and materials in steel ball bearing performance and durability?

The cage design and materials used in steel ball bearings play a crucial role in determining their performance and durability. The cage, also known as the bearing retainer or separator, holds the steel balls in position and maintains the proper spacing between them. It prevents the balls from coming into contact with each other, which could lead to excessive friction, wear, and damage. Here’s an explanation of the role of cage design and materials in steel ball bearing performance and durability:

1. Ball Guidance and Positioning:

The primary function of the cage is to guide and position the steel balls within the bearing. The cage ensures that the balls are evenly distributed around the bearing raceways, maintaining proper alignment and preventing contact between adjacent balls. This guidance and positioning function is crucial for achieving smooth and efficient rolling motion, reducing friction, and optimizing the performance of the bearing.

2. Friction and Heat Reduction:

The cage design and materials can significantly impact the friction and heat generated during bearing operation. An efficient cage design allows for proper ball rotation while minimizing contact and sliding friction between the balls and the cage itself. This reduced friction helps to minimize energy loss and heat generation, improving the overall efficiency and durability of the bearing. Additionally, some cage materials have low thermal conductivity, which can further contribute to heat reduction and prevent overheating of the bearing.

3. Load Distribution:

The cage also plays a role in distributing the applied loads evenly among the steel balls. By maintaining the correct spacing between the balls, the cage helps to distribute the radial and axial loads across a larger contact area. This load distribution capability prevents localized stresses and reduces the risk of premature wear or failure of the bearing. A well-designed cage ensures that the bearing can handle higher loads and provides improved durability under demanding operating conditions.

4. Lubricant Retention:

The cage design can impact the retention and distribution of lubricant within the bearing. Proper lubrication is essential for reducing friction, preventing wear, and protecting against corrosion. The cage should allow for sufficient lubricant flow and retention, ensuring that the balls and raceways are adequately lubricated during operation. An effective cage design promotes the proper distribution and retention of lubricant, enhancing the overall performance and durability of the bearing.

5. Material Compatibility and Durability:

The choice of cage materials is critical for the durability and performance of steel ball bearings. The cage materials must be compatible with the bearing operating conditions, including factors such as speed, temperature, and exposure to corrosive environments. Common cage materials include steel, brass, bronze, synthetic resins, and polymers. Each material has its own advantages and limitations in terms of strength, wear resistance, corrosion resistance, and temperature resistance. The selection of the appropriate cage material ensures the long-term durability and reliable operation of the bearing under specific application requirements.

6. Noise and Vibration Control:

The cage design can also influence the level of noise and vibration generated by the bearing during operation. A well-designed cage can help reduce noise and vibration by maintaining ball stability, minimizing ball-to-cage and ball-to-raceway contact, and dampening oscillations. This noise and vibration control not only improves user comfort but also reduces the risk of damage to other components in the machinery or equipment.

7. Application-Specific Considerations:

In some cases, the cage design and materials may need to be tailored to specific application requirements. For example, in high-speed applications, cages with low mass and low centrifugal forces may be preferred to minimize the risk of cage deformation or imbalance. In environments with exposure to chemicals or extreme temperatures, cage materials with excellent chemical resistance or high-temperature stability may be necessary. Application-specific considerations ensure that the cage design and materials are optimized for the specific operating conditions, further enhancing bearing performance and durability.

In summary, the cage design and materials used in steel ball bearings play a vital role in their performance and durability. The cage provides ball guidance, reduces friction and heat, distributes loads, retains lubricant, and controls noise and vibration. The choice of cage materials must consider factors such as compatibility, durability, and application-specific requirements to ensure optimal bearing performance and long-term reliability.

steel ball bearing

Can steel ball bearings be customized or modified for unique industrial needs?

Yes, steel ball bearings can be customized or modified to meet unique industrial needs. Manufacturers offer various options for customization and modification to ensure that the bearings align with specific requirements. Let’s explore some of the ways steel ball bearings can be customized:

1. Bearing Size and Configuration:

Steel ball bearings can be customized in terms of size, including the outer diameter, inner diameter, and width. Manufacturers can produce bearings in a wide range of sizes to accommodate different shaft and housing dimensions. Additionally, the configuration of the bearing, such as the number and arrangement of balls, can be modified to optimize load capacity, speed, or specific operating conditions.

2. Material Selection:

While steel is the most common material used for ball bearings, there are different types of steel with varying properties. Manufacturers can offer customized steel ball bearings made from specific grades of steel to enhance performance characteristics such as corrosion resistance, high-temperature resistance, or hardness. In some cases, alternative materials such as stainless steel or specialty alloys may be used to meet unique industrial requirements.

3. Seal or Shield Options:

Bearings can be customized with different seal or shield options to provide enhanced protection against contamination, moisture, or chemicals. Manufacturers can offer various sealing configurations, such as rubber seals, metal shields, or labyrinth seals, to suit specific environmental conditions and prevent the ingress of particles or fluids into the bearing. Customized sealing solutions can help prolong bearing life and improve reliability in challenging industrial environments.

4. Lubrication:

The lubrication of steel ball bearings can be customized based on the specific application requirements. Manufacturers can offer a range of lubrication options, including different types of lubricants and greases with varying viscosities, additives, or properties. Customized lubrication solutions ensure optimal performance, reduce friction, and enhance the bearing’s ability to withstand high temperatures, extreme loads, or harsh operating conditions.

5. Cage Design:

The cage, or retainer, holds the balls in position within the bearing and ensures proper ball guidance and spacing. Steel ball bearings can be customized with different cage designs, materials, or configurations. For example, cages can be made from steel, brass, or engineered polymers, each offering specific advantages such as improved heat dissipation, reduced friction, or enhanced durability. Customized cage designs can optimize the bearing’s performance in terms of speed, noise, or resistance to specific operating conditions.

6. Special Coatings or Surface Treatments:

In certain industries or applications, steel ball bearings may benefit from specialized coatings or surface treatments. These coatings can provide additional protection against corrosion, reduce friction, or enhance the bearing’s ability to withstand extreme temperatures or harsh chemicals. Customized coatings or surface treatments can be applied to the bearing’s outer surface, inner raceway, or balls to improve performance and extend the bearing’s lifespan.

7. Specialized Testing and Certification:

For industries with stringent quality or performance requirements, manufacturers can provide customized testing and certification services. This ensures that the steel ball bearings meet specific industry standards, regulations, or performance criteria. Customized testing may involve precision measurement, noise analysis, vibration testing, or endurance testing to verify the bearing’s performance and reliability in unique industrial applications.

By offering customization and modification options, manufacturers can tailor steel ball bearings to meet the unique needs of various industries, applications, and operating conditions. Customized bearings can deliver improved performance, durability, and reliability, ultimately enhancing the overall efficiency and productivity of industrial systems.

steel ball bearing

What are steel ball bearings, and how are they used in mechanical systems?

Steel ball bearings are a type of rolling element bearing that consists of small spherical balls made of steel. They are widely used in various mechanical systems to reduce friction and facilitate smooth rotational motion.

Steel ball bearings work by placing the balls between two rings, known as the inner and outer raceways. The balls roll freely between these raceways, allowing for the transmission of radial and axial loads. The raceways are typically made of hardened steel to provide durability and minimize wear.

These bearings offer several advantages in mechanical systems:

  1. Reduced Friction: Steel ball bearings have a low coefficient of friction due to the smooth rolling action of the balls. This reduces the amount of energy required to rotate the shaft or assembly, resulting in improved efficiency and reduced wear on the components.
  2. Load Distribution: The spherical shape of the balls allows for even distribution of loads across the raceways. This enables the bearings to handle both radial and axial loads, making them suitable for applications with different types of forces.
  3. High-Speed Operation: Steel ball bearings are capable of operating at high speeds due to their low friction and efficient rolling action. They are commonly used in applications such as electric motors, automotive engines, and machinery that require rapid rotational motion.
  4. Versatility: Steel ball bearings are available in various sizes and configurations, making them adaptable to different mechanical systems. They can be found in a wide range of applications, including robotics, aerospace, medical equipment, and industrial machinery.
  5. Longevity: With proper maintenance and lubrication, steel ball bearings can have a long service life. Regular lubrication helps to minimize friction and prevent corrosion, ensuring smooth operation and extending the lifespan of the bearings.

In mechanical systems, steel ball bearings are used in a variety of applications, including:

  • Rotating shafts and axles
  • Wheel assemblies in vehicles
  • Gearboxes and transmissions
  • Machine tools
  • Conveyor systems
  • Robotic joints
  • Electric motors and generators
  • Pumps and compressors

Overall, steel ball bearings play a critical role in minimizing friction and enabling smooth motion in mechanical systems, contributing to improved efficiency, reliability, and longevity of the equipment in which they are used.

China supplier 1688 Machine Equipment Nk40/30 Na4834 Na4907 Needle/Tapered/Cylindrical Roller/Thrust Ball/Needle/Stainless Steel Bearing with High Performance   drive shaft bearingChina supplier 1688 Machine Equipment Nk40/30 Na4834 Na4907 Needle/Tapered/Cylindrical Roller/Thrust Ball/Needle/Stainless Steel Bearing with High Performance   drive shaft bearing
editor by CX 2024-03-06

Steel Ball Bearings

As one of the leading steel ball bearings manufacturers, suppliers, and exporters of mechanical products, We offer steel ball bearings and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of steel ball bearings.

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