miniature ball bearing

Deep groove ball bearing with seals or shields

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.Integral sea

ling prolongs bearing service life

Simple, versatile and robust design

Low friction and high-speed capability

Accommodate radial and axial loads in both directions

Require little maintenance

Knowledge and introduction of bearings    :                                                                                                 

Miniature ball bearings are small-sized bearings that are primarily used in applications requiring light loads within limited space. They are widely employed in precision machinery and electronic devices to achieve smooth operation and high performance. Here's a detailed introduction to miniature ball bearings:

1. Structure and Function:

• Miniature ball bearings are characterized by their compact size, lightweight construction, high-speed capability, and high precision . They consist of rolling elements (usually steel balls or cylindrical rollers) along with outer and inner rings. These rolling elements are distributed between the inner and outer rings to minimize friction while providing support and positioning.

2. Basic Specifications:

• The dimensions of miniature bearings are typically expressed in metric units, such as inner diameter, outer diameter, and width. Common sizes include 3mm, 4mm, 5mm, and so on .

• Miniature bearings can be further classified based on their structural forms, such as deep groove ball bearings, angular contact ball bearings, tapered roller bearings, and more .

3. Materials:

• Miniature bearings are usually crafted from materials like GCr15 or stainless steel, which provide strength and durability .

4. Applications:

• Electronics: Miniature bearings play a vital role in various electronic devices such as hard disk drives, printers, and more. They are used to support components like optical lenses, fans, and robotic arms, ensuring smooth operation of the equipment .

• Precision Instruments: They are critical in precision instruments and experimental equipment. For example, they are applied in optical instruments, laser devices, medical equipment, measurement instruments, etc., to achieve precise motion control and positioning requirements .

• Model Making: Miniature bearings are commonly used in model making projects, including model airplanes, ships, trains, etc. They ensure smooth movement of model components, providing a more realistic and fluid operating experience .

• Mechanical Equipment: They find extensive use in a wide range of mechanical equipment that demands compact and efficient bearing solutions .

5. Benefits:

• Miniature bearings provide a low level of vibration, noise, and frictional torque performance .

• They are engineered for high performance, providing dependable operation under moderate thrust and radial loads while maintaining low operating torque .

• Due to their limited material usage, many miniature bearings are manufactured from stainless steel, and they are generally not suited for high-load applications .

Miniature ball bearings are an essential component in many industries where precision, speed, and space efficiency are critical. Their compact size and high precision make them versatile for various applications.

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