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Dec . 12, 2024 23:38 Back to list

628z bearing dimensions

Understanding the Dimensions of 628Z Bearings


Bearings are vital components in many mechanical systems, providing the necessary support and movement for various applications. One commonly used type is the 628Z bearing. This article delves into the dimensions and specifications of the 628Z bearing, which is crucial for engineers and technicians working in machinery design and maintenance.


What is a 628Z Bearing?


The 628Z bearing is a small, deep groove ball bearing, primarily used in applications where space is limited but reliable and durable performance is needed. The Z in its designation refers to the metal shield on one side of the bearing, which provides protection against dirt and debris while retaining lubrication, enhancing the bearing's longevity and performance.


Dimensions


The 628Z bearing is characterized by the following key dimensions


- Outer Diameter (D) The outer diameter of the 628Z bearing is typically 24 mm. - Inner Diameter (d) The inner diameter measures 8 mm. - Width (B) The width of the bearing is around 8 mm.


These dimensions make the 628Z one of the smaller bearings available, ideal for compact machinery and electronic equipment.


Load Ratings

The load ratings of a bearing indicate the maximum axial and radial loads it can handle. For the 628Z bearing, the basic dynamic load rating (C) is approximately 6.3 kN, while the static load rating (C0) is about 3.3 kN. These ratings provide a guideline for engineers when selecting a bearing suitable for specific loads in their applications.


Speed Ratings


628z bearing dimensions

628z bearing dimensions

Another crucial parameter is the speed rating. The maximum speed for the 628Z bearing is generally around 40,000 RPM, making it suitable for high-speed applications. However, it is essential to remember that the actual speed capability can be affected by other factors such as lubrication type, mounting conditions, and operating temperatures.


Applications


The 628Z bearing finds applications in various sectors, including


- Electronics Used in hard drives, fans, and small motors where space constraints are predominant. - Automotive Found in automotive applications such as in small electric motors, pumps, and other ancillary equipment. - Home Appliances Incorporated in devices like washing machines, blenders, and vacuum cleaners. - Industrial Machinery Utilized in conveyor systems, power tools, and various automation equipment.


Installation and Maintenance


For optimal performance, proper installation and maintenance of the 628Z bearing are essential. It is recommended to avoid excessive radial and axial loading and to maintain appropriate lubrication to prevent wear and tear. Regular inspection and timely replacement of bearings can also prolong the life of the machinery they support.


Lubrication


Lubrication plays a fundamental role in the longevity and efficiency of bearings. The 628Z bearing typically comes pre-lubricated with grease, suitable for most applications. However, depending on the operating environment (temperature, speed, and load conditions), different lubricants may be required. It is important to select the right lubrication method, be it grease or oil, to ensure optimal bearing performance.


Conclusion


The 628Z bearing is a compact and efficient option for various applications that require high-speed operation and space efficiency. Understanding its dimensions and specifications is crucial for selecting the right bearing for specific needs. Proper installation and maintenance will ensure that this small but vital component continues to function effectively, supporting the machinery it is part of.


In summary, the 628Z bearing exemplifies the balance of size, load capacity, and speed requirements, making it a popular choice across multiple industries. As technology advances and demands for smaller components increase, the role of such bearings will become even more significant in the design and performance of modern mechanical systems.


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