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Ningbo Kent Bearing Co., Ltd

We are Ningbo Kent Bearing, one of the leading high-quality bearing manufacturer and supplier, established in 2003. Specializing in the production of medium and high-end silent bearings
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Why
Choose Us
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20+ Years
R&D And Manufacturing, Founded in 2003, we focus on the production of high precision and low noise deep groove ball bearings.
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20+ Lines
Automatic Production Lines. Make sure we can make a wide range of bearings to various countries of the world.
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800, 000 USD
Annual R&D Investment. Make better bearings continuously.
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30,000,000 PCS
Annual production capability. Bearings are exported at home and abroad. Have strong supply capacity
SOLUTION
SOLUTION
  • Technical Architecture and Key Processes of 6201 Automotive Bearings
    11-11 2026
    6201 automotive bearing is a typical type of deep groove ball bearing. It is a precision component designed for automotive actuators and other parts, widely used in air conditioning blowers, radiator electric fans, vehicle cooling water pumps and other applications of mid-to-high-end and new energy vehicles. Compared with conventional civilian bearings, the automotive 6201 bearing has multiple advantages: higher precision grade and smaller dimensional tolerance; superior sealing performance to prevent ingress of moisture and dust; lower vibration and noise to improve riding comfort; longer service life to match the service cycle of automobiles. Meanwhile, this type of bearing requires strict production specifications and difficult process control. It also needs to meet the environmental and safety standards of the automotive industry, which sets high requirements on the manufacturer’s technical capability and quality control. At present, the 6201 bearing is mainly applied to the following core automotive components: 01 Air conditioning blower motor: It runs continuously and requires quiet cabin performance, demanding low vibration, low noise and long-term sealing protection. 02 Radiator electric fan motor: Exposed to high temperature, muddy water in the engine compartment and frequent PWM start-stop, it requires reliable wide-temperature weather resistance, water and dust resistance. 03 Vehicle cooling water pump motor: Subject to humid-heat medium impact and continuous alternating load, it features moisture corrosion resistance and stable durability. These scenarios impose extremely high requirements on bearing stability and performance consistency, so selecting a qualified bearing manufacturer is critical. As a technical explorer in this field, Ningbo Kenda Bearing has been committed to maximizing the technical potential of the automotive 6201 bearing. To achieve automotive-grade performance, the production of 6201 bearings relies on several key processes: 01 Micro-level polishing: High-precision polishing of raceway surface to reduce friction coefficient and operating loss; 02 Raceway superfinishing: Optimize the raceway surface profile, improve contact accuracy and reduce vibration and noise; 03 Clearance optimization: Precisely control the radial internal clearance according to the working conditions of automotive components to avoid jamming or excessive clearance; 04 High-precision heat treatment: Improve the wear resistance and dimensional stability of bearing steel to adapt to extreme temperature changes; 05 Full-process automated production: Reduce human error through automated production lines to guarantee product consistency. The 6201 bearings manufactured by Kent are practical achievements based on the above technical principles. With core processes such as micro-level polishing, automated production and clearance optimization, they perfectly meet the stringent requirements of automotive actuators. KENT BEARING ---------------------------------------------------------------------------------------------------------------------------------------------- If you are a manufacturer of vehicle air conditioning blowers, radiator electric fans or vehicle cooling water pumps and are troubled by the precision, noise, service life or lead time of input-side bearings, please feel free to contact the Kent technical service team at +0086-19957451956. The engineering team of Kent Bearing can support you with selection calculation, life verification and small-batch customized validation.
  • My clients and I are both in the bearing industry
    11-09 2026
    I recently connected with a customer from Greece. He reached out to me by email at first, expressing interest in our bearings and a desire to establish business relationship. I sent him our company brochure, the ISO9001:2015 quality management system certificate, as well as SGS and ROHS certificates. The customer was satisfied, confirming our qualifications meet EU import standards.After that, he asked us to prepare samples, including both standard and non-standard items. We went through repeated confirmations on the samples’ tolerance grade, noise level,clearance and operating conditions. And also We paid special attention to working conditions, including operating temperature, service duration, maximum temperature, and the operating hours under extreme temperatures. What impressed me most during this process was how patiently he explained and shared professional knowledge. Like an old friend, he told the whole story gently and slowly. I was deeply touched by his thoughtfulness and kindness. To me, sales is not merely about selling products; it is about human connection and life itself.   The customer from Bangladesh and I have only chatted for a few days. Even before finalizing the product specifications, he kindly sent me photos of the Hindu Kali Puja festival celebrations pic. His enthusiasm for work and passion for life has not only helped me grow professionally, but also filled me with confidence and hope for a wonderful life.   Thanks my customers,thanks the life,thanks my career in bearings Any question pls feel free to contact me: Web:www.motor-bearings.com Email:info@bgbearing.com Mobile/wechat: +86-19957426729  
  • Why Do Motor Bearings Keep Burning Out? These 8 Issues Are the Bearing Manufacturer’s Responsibility!
    11-04 2026
      Many bearing manufacturers still follow the standard-parts mindset of “you provide the model number, we arrange shipment”. They only supply bearings that meet national standard dimensions and take no responsibility for application condition matching.   But for variable-frequency, high-speed, enclosed and shock-load motors, working condition variables are extremely complex. Standard bearings alone cannot withstand such conditions. The following 8 items are inherent responsibilities of professional bearing manufacturers: 01   No load and speed simulation is performed. Standard clearance is selected directly according to catalogs, with clearance reduction caused by motor temperature rise ignored, resulting in overheating and seizure during operation. 02   They know the motor is driven by a frequency converter but fail to warn of shaft current risks or offer insulated bearing solutions, which leads to washboard-like electrical erosion marks on raceways. 03   They are aware that the motor is driven by a frequency converter, yet do not alert to shaft current risks or supply insulated bearing solutions, causing washboard pattern electrical erosion on bearing raceways. 04   They adopt a one-size-fits-all grease filling approach, only using general-purpose grease without distinguishing continuous high-temperature, low-temperature start-stop and maintenance-free working scenarios, which leads to premature oil film failure. 05   They use generic sealing structures without customization based on motor internal negative pressure, moisture and dust environments, resulting in grease leakage and contaminant ingress.    06   For alternating shock loads, they still adopt conventional processing for GCr15 steel, with no life margin design on materials and heat treatment. 07   They do not calculate the interference compression of shaft and housing bore, failing to account for clearance reduction after press fitting, which causes continuous temperature rise during operation.              08   They only send replacement bearings after failure, without disassembly, failure analysis, or recommendations for grease, structure and corrective actions, so the same issue recurs repeatedly. We get involved at the drawing stage and align simulation, insulation, cage, grease, sealing and clearance fully with your motor working conditions. The bearing is merely the carrier to implement the solution. We help you identify assembly defects and pre-empt pitfalls related to working condition adaptation. If you are troubled by frequent bearing burnout, welcome to contact the Kenda technical service team at +86-19957451956. The engineering team of Kenda Bearings can support selection calculation, life verification and small-batch custom validation.
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