Custom Double Row Self Aligning Ball Bearing 2203 17x40x16 Bearing

2203 Self-Aligning Ball Bearing 17mm ID 40mm OD 16mm Width for Industrial Equipment

I. Product Structural Design

• Rolling Elements and Raceways: The 2203 bearing uses two rows of high-precision steel balls as rolling elements. These steel balls undergo precision grinding, resulting in extremely low surface roughness and minimal roundness error, ensuring smooth rolling within the raceways. The inner ring is designed with a double-groove structure, which can stably support the two rows of steel balls respectively; the outer ring raceway is spherical. This special structure endows the bearing with excellent self-aligning performance, enabling it to automatically compensate for axis misalignment caused by installation errors, shaft deflection, or thermal deformation of components, with a maximum angular deviation compensation of 3°.
• Cage: Usually made of high-quality steel plate through stamping, it has a lightweight structure and good toughness. It can accurately guide the movement trajectory of the steel balls, avoiding collision and friction between them, and ensuring the stability and low-noise performance of the bearing during high-speed operation. Some models use nylon cages, which have better corrosion resistance and self-lubricating properties, suitable for humid or slightly corrosive environments.

II. Key Product Parameters

III. Material Selection

• Bearing Steel: The inner and outer rings and steel balls are made of high-quality bearing steel. After strict heat treatment, their hardness reaches HRC60-65, providing excellent wear resistance, high strength, and good toughness. They can maintain shape stability when bearing large loads, extending the bearing's service life.
• Cage Material: Steel plate cages have good stamping performance and structural strength, suitable for general working conditions; nylon cages have strong corrosion resistance and good self-lubricating effect, suitable for environments with corrosion resistance requirements.

IV. Performance Advantages

• Excellent Self-Aligning Performance: The spherical outer ring raceway design enables it to automatically adapt to slight deviations of the axis, effectively solving problems caused by installation errors or shaft deformation, ensuring stable operation of the equipment, and reducing damage to the bearing from additional stress.
• Strong Radial Load-Carrying Capacity: The design of two rows of steel balls increases the contact area with the raceways, enabling it to bear large radial loads. At the same time, it can bear a certain degree of bidirectional axial loads, suitable for various load scenarios.
• Low Friction and High Stability: The high-precision rolling elements and optimized raceway fit reduce friction resistance, improve transmission efficiency, and ensure the stability of the bearing during high-speed operation, reducing vibration and noise.
• Good Environmental Adaptability: A variety of cage material options and sealing forms (such as open, 2RS, ZZ, etc.) allow it to adapt to different working environments, including dry, humid, and dusty scenarios.

V. Application Fields

VI. Installation and Maintenance Points

• Installation Points: The installation environment must be kept clean to prevent impurities from entering the bearing. The fit accuracy of the shaft and bearing housing must meet requirements; it is recommended to select shaft tolerance m6 and bearing housing bore tolerance J7. Professional tools should be used during installation to avoid direct knocking on the bearing. For hot fitting, the temperature should be controlled between 80℃ and 120℃. After installation, the radial and axial clearances must be inspected to ensure they are within the specified range.
• Lubrication Points: For general working conditions, NLGI Grade 2 lithium-based grease can be used, with a filling amount of 1/3-1/2 of the internal space of the bearing. For high-temperature and high-speed working conditions, it is recommended to use synthetic lubricating oil, and regularly inspect, replenish, and replace lubricants.
• Maintenance Points: Establish a regular maintenance system, conduct vibration detection once a week, and temperature monitoring once a month. If abnormal vibration or excessive temperature is found, shut down the machine immediately for inspection. Keep the equipment operating environment clean, and strengthen sealing protection in dusty environments.