Product Description

ZHangZhoug Shengya Bearing Technology Co., Ltd offers a Chrome Steel High Speed Resistant Tensioner Bearing with ISO9001 certification. Ideal for CZPT car parts and various automotive applications.

Product Parameters

Product Name: double row bearings
Model Number: 5203
Inner Diameter(mm) 17.5
Outer Diameter(mm) 40
Height(mm) 17
Material Chrome steel
Sealed type OPEN,RZ,2RS,4RS
Tolerance P0,P6,P5,P4,P2
Clearance C2,C0,C3,C4,C5
Noize level Z,Z1,Z2,Z3
Application Automotive Car
OEM Service Accept

Product Description

double row bearings:

-The bearings are adopted optimized structure designing so that can attain the traits of high temperature resistant, high speed resistant, long life, high speed rotation,impact resistant,high radial load,etc.

-Sealing structure and seals have the traits of high sealing ability, heat-resistant, abrasiveness and also can prevent the leakage of the grease, as they are helpful for lengthening the bearings’ using life.

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Company Profile

ZHangZhoug Shengya Bearing Technology Co., Ltd was established in 1996, spHangZhou over 10,000 square meters. With assets exceeding 50 million yuan and a workforce of over 80 employees, including 10+ professionals with intermediate and senior titles, we specialize in producing automotive, motorcycle, general machine, precision machine tool, and home appliance bearings. Our annual production capacity reaches 10 million sets of small to medium-sized bearings.


We excel in manufacturing various non-standard special-shaped bearings, boasting a wide range of options and meticulous craftsmanship. Situated in HangZhou, HangZhou City, a key industrial, commercial, and tourist hub in ZHangZhoug Province, we benefit from a prime location with easy access to transportation.


ZHangZhoug Shengya Bearing Technology Co., Ltd


Product Description


Welcome to ZHangZhoug Shengya Bearing Technology Co., Ltd! We are a factory + trade company specializing in bearings.


Product Features:


  • Customizable OEM options available
  • MOQ of 10pcs, with flexibility for lower quantities at a slightly higher cost
  • High-quality bearings made to your specifications





  • Customized products tailored to your needs
  • Competitive pricing based on quantity purchased
  • Reliable and durable bearings for various applications



Contact us today to discuss your bearing requirements and let us provide you with top-notch solutions!

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After-sales Service: One Year Warranty
Warranty: One Year Warranty
Type: Tensioner Bearing
US$ 2/Piece
1 Piece(Min.Order)


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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

deep groove ball bearing

What are the challenges and solutions for managing radial loads and axial loads in deep groove ball bearings?

Managing both radial loads and axial loads in deep groove ball bearings can present certain challenges. However, there are solutions available to address these challenges effectively. Here’s a detailed explanation of the challenges and solutions for managing radial loads and axial loads in deep groove ball bearings:

  • Challenges:
  • Deep groove ball bearings are primarily designed to handle radial loads. When subjected to significant axial loads, they may experience increased stress and premature wear, potentially leading to bearing failure. The challenges in managing radial loads and axial loads include:

    • Increased contact pressure and localized stress on the raceways due to axial loads
    • Potential ball skidding or sliding under high axial loads, leading to uneven wear
    • Risk of ball and raceway deformation or brinelling under excessive axial loads
  • Solutions:
  • To effectively manage radial loads and axial loads in deep groove ball bearings, the following solutions can be implemented:

    • Proper Bearing Selection: Selecting deep groove ball bearings that are designed to handle both radial and axial loads is crucial. Bearings with higher axial load capacities, such as deep groove ball bearings with filling slots or angular contact ball bearings, may be suitable for applications with significant axial loads.
    • Optimized Internal Clearance: The internal clearance of the bearing can be adjusted to accommodate the expected radial and axial loads. This ensures optimal load distribution and minimizes the risk of excessive stress concentrations. Manufacturers provide guidelines on the appropriate internal clearance for different load conditions.
    • Bearing Preload: Preloading the bearings can help manage axial loads by applying a controlled amount of internal axial force. This ensures that the bearings maintain contact with the raceways and minimizes the risk of ball skidding or sliding. Preloading is commonly used in applications such as machine tools.
    • Use of Thrust Bearings: In applications with high axial loads, incorporating thrust bearings in conjunction with deep groove ball bearings can help manage the axial component effectively. Thrust bearings are designed specifically to handle axial loads and can be used in combination with deep groove ball bearings to support both radial and axial loads.
    • Design Considerations: Careful consideration of the application’s operating conditions, load magnitudes, and directions is essential. This includes analyzing the ratio of radial to axial loads, the presence of shock or impact loads, and any misalignment or angular loads that may affect bearing performance. By understanding the specific requirements, the bearing arrangement and selection can be optimized for improved load management.

In summary, managing radial loads and axial loads in deep groove ball bearings requires careful consideration and appropriate solutions. Proper bearing selection, optimized internal clearance, bearing preload, the use of thrust bearings, and design considerations tailored to the application’s requirements are key steps in effectively managing both radial and axial loads. By implementing these solutions, the performance and longevity of deep groove ball bearings can be maximized, ensuring reliable operation under varying load conditions.

deep groove ball bearing

How does proper lubrication impact the performance and longevity of deep groove ball bearings?

Proper lubrication plays a crucial role in determining the performance and longevity of deep groove ball bearings. Here’s a detailed explanation of how proper lubrication impacts these aspects:

  • Reduced Friction and Wear:
  • Lubrication creates a thin film of lubricant between the rolling elements and the raceway surfaces of the deep groove ball bearing. This film of lubricant reduces friction and minimizes metal-to-metal contact, resulting in lower wear and extending the bearing’s lifespan. Proper lubrication ensures that the lubricant film remains intact, preventing excessive friction, heat generation, and premature wear of the bearing components.

  • Heat Dissipation:
  • Deep groove ball bearings can generate heat during operation due to the sliding and rolling contact between the balls and the raceways. Adequate lubrication helps in dissipating this heat by carrying it away from the contact zone. Proper lubrication prevents the bearing from overheating, which can lead to accelerated wear, loss of dimensional stability, and even bearing failure.

  • Corrosion and Contamination Protection:
  • Lubrication provides a protective barrier against corrosion and contamination. The lubricant helps to seal the bearing against external elements such as moisture, dust, dirt, and other contaminants that can degrade the bearing surfaces and compromise its performance. By preventing corrosion and contamination, proper lubrication extends the bearing’s service life and ensures reliable operation in challenging environments.

  • Noise and Vibration Reduction:
  • Insufficient or improper lubrication can result in increased noise and vibration levels in deep groove ball bearings. The lubricant acts as a cushioning medium, absorbing shocks and reducing the transmission of vibrations. Proper lubrication minimizes the generation of noise and vibrations, resulting in smoother and quieter operation of the bearing.

  • Effective Load Distribution:
  • Proper lubrication ensures effective load distribution within the deep groove ball bearing. The lubricant film helps distribute the applied loads evenly across the rolling elements and raceways, minimizing stress concentrations and preventing premature fatigue or failure of the bearing. This promotes the bearing’s load-carrying capacity and enhances its overall performance and reliability.

  • Preservation of Bearing Integrity:
  • Adequate lubrication helps preserve the overall integrity of deep groove ball bearings. It reduces the risk of surface damage, pitting, and scoring, which can lead to accelerated wear and premature failure. Proper lubrication also prevents the formation of rust and corrosion, preserving the structural integrity of the bearing components and ensuring their long-term functionality.

In summary, proper lubrication of deep groove ball bearings is essential for reducing friction and wear, dissipating heat, protecting against corrosion and contamination, minimizing noise and vibrations, facilitating effective load distribution, and preserving the overall integrity of the bearing. By ensuring proper lubrication, the performance and longevity of deep groove ball bearings can be significantly enhanced, resulting in reliable operation and extended service life.

deep groove ball bearing

How do deep groove ball bearings contribute to the efficient operation of household appliances?

Deep groove ball bearings play a crucial role in the efficient operation of household appliances. These bearings are widely used in various appliances, such as washing machines, refrigerators, dishwashers, vacuum cleaners, and many more. They provide several key benefits that contribute to the overall performance and efficiency of these appliances. Here’s a detailed explanation of how deep groove ball bearings contribute to the efficient operation of household appliances:

  • Smooth and Reliable Rotational Motion:
  • Deep groove ball bearings enable smooth and reliable rotational motion in household appliances. They are designed to accommodate both radial and axial loads, allowing appliances to operate with minimal friction and reduced power consumption. The low friction characteristics of deep groove ball bearings ensure efficient energy transfer and minimize heat generation during operation. This results in smoother and quieter performance, enhancing the overall efficiency of the appliances.

  • High-Speed Capability:
  • Deep groove ball bearings are capable of operating at high speeds, making them suitable for appliances that require rapid rotational motion. Whether it’s the spinning drum of a washing machine or the motor of a vacuum cleaner, deep groove ball bearings can withstand the demands of high-speed applications. Their optimized design, precision manufacturing, and use of high-quality materials allow for reliable and efficient operation at elevated rotational speeds.

  • Compact and Lightweight:
  • Deep groove ball bearings are known for their compact and lightweight design. This is particularly advantageous in household appliances where space is often limited. The small size and low weight of deep groove ball bearings help to reduce the overall size and weight of appliances, making them more compact, portable, and easier to handle. By minimizing the weight and size of the bearing components, appliances can achieve better energy efficiency and improved maneuverability.

  • Durability and Longevity:
  • Deep groove ball bearings are engineered to deliver exceptional durability and longevity. They are designed to withstand the demands of continuous use in household appliances. The use of high-quality materials, advanced manufacturing processes, and precision engineering ensure that deep groove ball bearings can withstand varying operating conditions, including temperature fluctuations, vibrations, and heavy loads. Their robust construction and resistance to wear and tear contribute to the longevity of household appliances, reducing the need for frequent repairs or replacements.

  • Cost-Effectiveness:
  • Deep groove ball bearings offer a cost-effective solution for household appliances. They provide reliable performance and require minimal maintenance, resulting in lower operating costs. The durability and longevity of deep groove ball bearings minimize the need for frequent replacements, reducing downtime and repair expenses. Additionally, their widespread availability and standardized dimensions make them easily accessible and affordable, contributing to the cost-effectiveness of household appliances.

In conclusion, deep groove ball bearings are essential components that contribute to the efficient operation of household appliances. Their ability to provide smooth and reliable rotational motion, high-speed capability, compactness, durability, and cost-effectiveness make them ideal for various appliance applications. By incorporating deep groove ball bearings into household appliances, manufacturers can enhance performance, energy efficiency, and overall user experience.

China OEM CZPT CZPT CZPT High Speed Double Row Angular Contact Deep Groove Ball Bearings5203   bearing assemblyChina OEM CZPT CZPT CZPT High Speed Double Row Angular Contact Deep Groove Ball Bearings5203   bearing assembly
editor by CX 2024-05-15