Angular contact ball bearing：7310

Basic Parameters

• The number "7" at the beginning of the bearing model represents angular contact ball bearings. The characteristic of this kind of bearing is that it can bear radial load and axial load at the same time. Its rolling element is a ball, and the ball is in point contact with the inner and outer ring raceways. In practical applications, such as the spindle of a machine tool, because the cutting force on the tool during the machining process has both radial and axial directions, angular contact ball bearings can handle this complex stress situation well.

• The "3" is the size series code, which is related to the dimensions such as the outer diameter and width of the bearing. In the case of the same inner diameter, different size series represent different combinations of outer diameter and width. The size series is mainly used to distinguish bearings with different load-carrying capacities and installation size requirements. For the 7310 bearing, this size series determines its relative size specification in the entire bearing series.

• The last two digits "10" represent the inner diameter size of the bearing. In standard bearing models, the inner diameter code multiplied by 5 is the inner diameter size of the bearing (in mm). So the inner diameter of the 7310 bearing is 10×5 = 50mm. This inner diameter size is very crucial for determining whether the bearing can be installed on a specific shaft. For example, in the design of the shaft end support structure of a motor, if the diameter of the shaft is 50mm, the 7310 bearing can be selected to provide support and rotation functions.
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    7310

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    7310

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    7310

   

Characteristics of bearings

• It has a relatively high precision level, which can ensure the stability and reliability of the equipment during operation. In precision instruments and equipment, such as the rotating shaft part of optical instruments, the high precision of 7310 bearing can ensure the accurate measurement and stable operation of the instrument. At the same time, it adopts high-quality materials and advanced manufacturing processes to ensure the quality of the bearing. After strict quality inspection, its indicators such as radial runout and axial runout all meet high-standard requirements and can maintain good performance during long-term use, reducing equipment maintenance costs.

• It has moderate bearing capacity and can bear radial and axial loads simultaneously. In industrial production, such as the roller shaft support of textile machinery, it needs to bear the radial force generated by the gravity of the roller itself and the axial force brought by yarn traction. The 7310 bearing can balance the loads in two directions well, ensure the smooth rotation of the roller and improve the quality of textile products. Its dynamic load capacity and static load capacity can meet the normal operation requirements of general industrial equipment and can work stably under different working conditions.

• It has good speed performance and can adapt to a certain range of speed requirements. In some equipment that requires medium and high-speed operation, such as the motor shaft support of fans, the 7310 bearing can operate stably within the normal working speed range of fans, reduce problems such as heating and wear caused by mismatched bearing speeds, extend the service life of equipment and ensure the efficient operation of fans.

Product Application

Due to its excellent comprehensive performance, the 7310 bearing is widely used in multiple industries such as machine tools, automobiles, motors, and fans.

In the machine tool industry, it is used for the support of the spindle to ensure the accuracy of the cutting tool during high-speed rotation cutting.

In the automotive field, it can be used in parts such as transmissions and hubs to improve the transmission efficiency and driving stability of the car.

In motors, it guarantees the stable rotation of the motor shaft and reduces noise and vibration. In fans, it helps the fan blades rotate smoothly to achieve good ventilation effects.

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  machine tool

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  hub

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  motor shaft

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  fan blade

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