Stainless Steel Ball Bearings Factory

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  • Stainless Steel Ball Bearings

    Stainless steel bearings are widely used and have advantages over regular bearings due to their corrosion resistance, acid-alkali resistance, rust prevention, and wide temperature range applicability. They find applications in environments with complex and harsh conditions such as food processing machinery (juicers, food mixers), household appliances, medical equipment, and other demanding fields.
    NBVO currently produces stainless steel bearings that meet V2 and V3 levels. 
    Key technologies include:
    Precision Level P5: Improving machining processes, incorporating additional heat treatment quenching followed by cold treatment at temperatures of -75 to -80 ℃ for 1 to 1.5 hours to ensure high dimensional stability of the inner and outer rings.
    Low Noise: Employing a dual-stage groove process using imported oil stones to maintain machining benchmarks, enhancing roughness of the inner and outer ring channels, ultimately maintaining stainless steel bearing noise within the Z2 range.
    Material Selection: Using highly corrosion-resistant stainless steel materials for inner and outer rings, steel balls, cages, and dust covers. SUS440 is used for inner and outer ring materials and steel balls, while SUS304 is used for cages and dust covers.
    Choosing high-purity, low-noise grease that meets food-grade certification requirements, ensuring that precision stainless steel bearings comply with international environmental standards.
    Product Catalog More Details

About Us

Ningbo NBVO Seiko Bearing Co., Ltd. is a professional OEM Stainless Steel Ball Bearings Manufacturer and ODM Stainless Steel Ball Bearings Supplier, , was founded in 2013 and specializes in high precision and low noise deep groove ball bearings. Our factory is equipped with modern production and measurement equipment, with a quality management system in conformity with the requirements of ISO 9001:2015, ISO 14001:2015, TUV IATF 16949:2016, ROHS, and REACH standards. The skilled employees and the modern high-precision equipment allow the factory to release grade 6 and above bearings with accuracy. The noise level of stainless steel bearings can reach ZV3 and chrome steel bearings can reach ZV4.


  • REACH Test Reports
  • ROHS Test Report
  • IATF16949-2016
  • Environmental Management System Certificate


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Industry Knowledge Extension

Stainless steel ball bearings are precision-engineered components used in a wide range of applications, particularly in machinery and equipment where smooth and efficient rotation is critical. 
Can stainless steel ball bearings absorb shock and vibration generated during operation?
Stainless steel ball bearings do have a certain ability to absorb the impact and vibration generated during operation.
Firstly, the design of ball bearings allows the ball to roll between the inner and outer rings, and this rolling contact can effectively disperse and reduce impact forces. When the shaft is subjected to impact, the sphere can absorb and disperse these impact forces, reducing their direct impact on the bearing itself and the entire mechanical system.
Secondly, stainless steel materials themselves have high strength and toughness, which can resist the stress caused by impact and vibration. This makes stainless steel ball bearings more durable and reliable when subjected to impact.
In addition, ball bearings are usually equipped with sealing devices and lubrication systems, which also help reduce the impact of vibration and impact on bearing performance. The sealing device can prevent external pollutants from entering the interior of the bearing, maintaining the cleanliness and lubrication of the bearing; The lubrication system can ensure that the bearings have sufficient lubrication during operation, reduce friction and wear, and further improve the bearing's impact and vibration resistance.
However, it should be noted that although stainless steel ball bearings have a certain ability to absorb impacts and vibrations, they are not specifically designed to withstand large or sustained impacts. In applications that require extreme impacts and vibrations, it may be necessary to use other specialized damping or shock absorption devices to protect bearings and the entire mechanical system.
Therefore, when selecting and using stainless steel ball bearings, it is necessary to evaluate their ability to absorb impacts and vibrations based on specific application scenarios and requirements, and ensure that they can meet the performance requirements of the system.

Can excessive buildup of dirt and debris cause premature wear and failure of stainless steel ball bearings?
Yes, excessive accumulation of dirt and debris can indeed lead to premature wear and failure of stainless steel ball bearings.
The accumulation of dirt and debris can affect the normal operation of bearings. Firstly, these impurities can damage the lubrication system inside the bearing, making it difficult for lubricating grease or oil to be evenly distributed on the bearing surface, resulting in poor lubrication. Poor lubrication is one of the main causes of premature bearing damage, which can lead to excessive friction and heat generated during operation, resulting in wear and damage to the bearing surface.
Secondly, the accumulated dirt and debris may directly cause scratches or wear on the bearing surface. These impurities roll inside the bearing like abrasives, constantly coming into contact with the bearing surface, causing it to gradually lose its original smoothness and accuracy. Over the long term, the geometric shape and dimensional accuracy of bearings will be severely affected, leading to a decrease in bearing performance and even failure.
In addition, dirt and debris may also affect the sealing performance of bearings. If the sealing device of the bearing is blocked or damaged by impurities, the lubricating oil or grease inside the bearing may leak out, leading to insufficient lubrication of the bearing. Meanwhile, external pollutants may also enter the interior of the bearing through damaged sealing devices, further exacerbating the damage to the bearing.
Therefore, in order to maintain the normal operation of stainless steel ball bearings and extend their service life, it is necessary to regularly clean and maintain them. During the cleaning process, appropriate cleaning agents and tools should be used to ensure that the dirt and debris on the surface and inside of the bearing are thoroughly removed. At the same time, the lubrication system and sealing device of the bearings should also be checked to ensure that they are in good working condition.