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Four-point contact ball bearings Manufacturers

  • Four-point contact ball bearing
    Four-point contact ball bearings are angular contact ball bearings that can support two-way axial loads. Four-point contact ball bearings are generally designed for scenarios like pure axial load or two-point contact circumstances under synthetic load( more axial loads). The high limiting speed of four-point contact ball bearings prepares them for the high-speed operating environment.
    Four-point contact ball bearings can withstand axial loads in two directions and  take up less axial space. And these bearings occupy significantly less axial space compared with double-row ones.
    High load capacity: a good many balls can be placed into the bearing to achieve higher load capacity.
    Separation-type design: separable inner ring can contribute to mounting and dismounting of bearings more conveniently.
    Four-point contact ball bearings such as 4P305AB and 4P306AB produced by NZSB can be used in the steering system of the automobile industry.
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about NZSB ™

Ningbo Silver-ball Technology Co., Ltd., founded in 1995, is professional China Four-point contact ball bearings manufacturers and custom Four-point contact ball bearings suppliers; and it’s noted for the brand NZSB. The headquarter takes up approximately 42.5 acres, owns 2 production bases in Ningbo(, Zhejiang) and Anhui and 4 production factories, and boasts 468 high-end automated production lines with an annual bearing productivity of 1 billion sets. Complied by “rotating with the world”, our company manufactures products featuring low noise, long lifespan, high speed and extreme precision. Besides,as famous OEM/ODM Four-point contact ball bearings factory, our products have been applied in a hybrid of fields like appliances, automobiles, industrial motors, textile machinery, high-speed vacuums, and exported to over 20 countries or regions as America, Germany, Japan, Singapore, etc.
Our company has worked diligently on precision bearing for over 20 years and fulfilled an increasing comprehensive strength. Capitalizing on advanced technology, product quality, production scale and fast response, we have been recognized by countless premium customers and built a friendly cooperative relationship with them in a long run. In appliances, we’ve established a long-lasting cooperative tie with well-known enterprises such as Midea Group, Gree Group, Dyson, Wolong Electric Group, Tongde Electric. In automobiles, we are one of the important suppliers of global renowned enterprises such as Nidec and Panasonic Group. According to Top 20 enterprises in the bearing industry by main business income in 2021 released by China Bearing Industry Association(CBIA), we ranked 14th , being one of the few enterprises mainly producing micro and small precision bearings in the list.

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Industry Knowledge Extension

What are the benefits of using four-point contact ball bearings in industrial applications?

Four-point contact ball bearings are a type of ball bearing that are designed with four points of contact between the balls and the raceways, allowing them to support axial and radial loads in both directions. These bearings offer several benefits for industrial applications:
1. High Load Capacity: Four-point contact ball bearings are designed to handle both axial and radial loads, making them suitable for applications that require high load capacity.
2. Space Saving Design: Four-point contact ball bearings have a compact design that saves space in industrial applications.
3. Improved Stability: Four-point contact ball bearings have a design that provides improved stability, especially in situations where there may be misalignment or shaft deflection.
4. Reduced Friction: Four-point contact ball bearings have a lower friction coefficient compared to other types of bearings, which reduces wear and tear and helps to increase the lifespan of the bearing.
5. Versatility: Four-point contact ball bearings can be used in a wide range of industrial applications, including robotics, machine tools, construction equipment, and more.
Overall, four-point contact ball bearings offer a range of benefits that make them a popular choice for industrial applications where high load capacity, space savings, stability, and versatility are required.

How do four-point contact ball bearings differ from other types of bearings?

Four-point contact ball bearings are a type of ball bearing that are designed to support axial and radial loads in both directions. They differ from other types of bearings in a few key ways:
1. Design: Four-point contact ball bearings have a unique design that features four points of contact between the balls and the raceways. This design allows for greater axial and radial load capacity than other types of bearings.
2. Load capacity: Because of their unique design, four-point contact ball bearings can handle higher axial loads and tilting moments than other types of ball bearings.
3. Reduced friction: The four-point contact design also reduces friction, which can improve efficiency and reduce wear on the bearing.
4. Versatility: Four-point contact ball bearings can be used in a wide range of applications, including machine tools, robotics, and medical equipment, where high precision and reliability are required.
Overall, four-point contact ball bearings are a specialized type of ball bearing that offer unique benefits and are well-suited to specific types of applications.

What are the key considerations for installation and maintenance of four-point contact ball bearings?

Four-point contact ball bearings are a type of ball bearing that can support both radial and axial loads, and they are commonly used in a variety of industrial applications. Here are some key considerations for the installation and maintenance of four-point contact ball bearings:
Installation:
1. Cleanliness: Before installation, the bearing and its surroundings should be cleaned thoroughly to ensure that there is no dirt or debris that can affect the bearing's performance.
2. Mounting: The mounting surfaces should be flat, smooth, and parallel to each other to ensure proper alignment of the bearing. The bearing should be mounted using a hydraulic press or other suitable mounting tools to prevent damage to the bearing or its raceways.
3. Lubrication: Adequate lubrication is essential to reduce friction and prevent wear and tear. The type and amount of lubricant used should be specified by the manufacturer.
4. Preload: The preload of the bearing should be adjusted according to the manufacturer's recommendations to ensure proper performance and prevent premature failure.
Maintenance:
1. Inspection: Regular inspection of the bearing and its surroundings is essential to detect any signs of wear or damage. This includes checking for cracks, corrosion, or any other signs of damage.
2. Lubrication: Proper lubrication is critical to the longevity and performance of the bearing. The lubricant should be changed according to the manufacturer's recommendations and the operating conditions.
3. Temperature: The operating temperature of the bearing should be monitored to ensure that it does not exceed the manufacturer's specified limits. High temperatures can cause the bearing to fail prematurely.
4. Load: The bearing's load capacity should be monitored to ensure that it is not exceeded. Overloading can cause premature failure of the bearing.
5. Replacement: If the bearing shows signs of wear or damage, it should be replaced immediately. A damaged bearing can lead to catastrophic failure and potential safety hazards.
In summary, proper installation and maintenance of four-point contact ball bearings are critical to their longevity and performance. By following these key considerations, you can ensure that your bearings operate at their best and avoid costly downtime and repairs.