• Deep Groove Ball Bearing
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• Plummer Block Housing
• Adapter Sleeve & Withdrawal Sleeve
• Spherical Plain Bearing & Rod End
• Linear Motion Ball Bearing
• Auto Bearing
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• Steel Ball
• Special Bearing

1. Dimensions

It comes with a bore diameter of 1 mm, an outer diameter of 3 mm, and a width of 1 mm. These ultra - compact dimensions make it an excellent choice for integration into extremely small - sized devices where space is extremely limited, such as micro - motors and precision instruments.

2. Material

• Inner and Outer Rings: The inner and outer rings are made from high - grade chrome steel, typically AISI 52100. This material provides high hardness and superior wear resistance, which are vital for withstanding the frictional forces during rotation. The chrome steel rings ensure the bearing maintains its structural stability even under continuous operation. However, similar to other chrome steel bearings, they lack corrosion resistance, so exposure to moisture or corrosive substances can lead to rusting.

• Balls: The balls inside the 601XZZ bearing are also crafted from chrome steel. Through precision grinding, they achieve a smooth surface and accurate spherical shape, which is essential for reducing friction between the balls and the raceways of the inner and outer rings. This precision contributes to the bearing's smooth rotation and efficient load distribution.

• Shields (ZZ): The double shields, indicated by "ZZ", are made of thin carbon steel. These shields act as a protective barrier, preventing dust, dirt, and other small particles from entering the bearing's internal components. While they offer basic protection, the carbon steel shields do not resist corrosion, so the bearing is best used in dry conditions.

3. Performance

• Load - Carrying Capacity: Despite its tiny size, the 601XZZ bearing has a reasonable load - carrying capacity. The combination of chrome steel's strength and the deep - groove design allows it to handle both radial and light axial loads. It can effectively support the rotating shafts in micro - sized equipment, such as small sensors and miniature gears, ensuring stable operation under typical working loads.

• Rotational Speed: It is capable of operating at relatively high rotational speeds. The smooth contact between the chrome steel balls and the raceways, along with proper lubrication, minimizes friction, enabling efficient rotation. Under optimal conditions, it can reach rotational speeds suitable for micro - motors and other small - scale rotating components, ensuring efficient power transmission.

• Friction and Wear: The precision - machined chrome steel components result in low friction during operation. Low friction not only reduces energy consumption but also slows down the wear of the bearing's parts, extending its service life. However, in environments with contaminants or inadequate lubrication, the wear rate will increase, affecting the bearing's performance and lifespan.

• Corrosion Resistance: Due to its chrome steel construction, the 601XZZ bearing has poor corrosion resistance. It is highly susceptible to rust when exposed to water, moisture, or corrosive chemicals. Therefore, it must be used in dry environments, and any contact with moisture should be strictly avoided to prevent premature failure.

4. Sealing

The double carbon steel shields provide effective protection against the entry of dust, dirt, and other solid contaminants. They help retain the lubricant within the bearing, ensuring the internal components stay properly lubricated for smooth rotation. However, the shields are not waterproof, so the bearing cannot be used in wet or submerged environments. Once exposed to moisture, the risk of rusting increases significantly, which will damage the bearing's functionality.

5. Applications

• Micro - Electronics: It is widely used in micro - electronic devices. For example, in tiny sensors, it supports the rotating parts, ensuring accurate data collection through stable rotation. In micro - robots, it is used in the small motors that drive the robot's movements, enabling precise and smooth operation.

• Precision Instruments: Precision instruments such as miniature measuring tools and optical devices rely on the 601XZZ bearing. In a micro - optical lens adjustment system, it allows for precise and smooth movement of the lens, ensuring accurate focusing. In small - sized measuring gauges, it contributes to the smooth operation of the internal mechanisms, guaranteeing measurement accuracy.

• Toys and Miniature Models: Many small toys and miniature models use this bearing. In nano - sized remote - controlled cars, it is installed in the tiny motors, providing reliable support for the rotating shafts and ensuring the car's smooth movement. In miniature aircraft models, it helps reduce friction in the small components, enhancing the model's performance.

• Medical Devices: Some small medical devices, such as micro pumps used in insulin delivery systems, utilize the 601XZZ bearing. It supports the rotating parts of the pump, ensuring a stable and accurate flow of insulin, which is crucial for the device's functionality and the patient's safety.