High-precision ceramic bearings (for water-cooled pumps and data center equipment)
High precision × High durability. The new standard for cooling devices.
The ceramic bearings provided by Citizen Fine Device are next-generation bearings that combine lightweight, high wear resistance, and high precision as an alternative to metal bearings. In addition to applications in water-cooled pumps, they have recently been adopted in cooling fans for data center equipment. Features: - High precision machining: Dimensional accuracy ±0.3μm, surface roughness Ra 0.03μm or less - Wear and impact resistance: Reduces the generation of wear particles and is less prone to deformation from drop impacts - Environmental resistance: Stable operation even in high temperature and high humidity environments - Quiet operation: Minimal friction noise, contributing to a quiet design - SDGs compliance: Significant reduction in processes through near-net shaping, achieving low costs
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basic information
Material: Alumina, Zirconia Specific Gravity: 3.2 to 6.0 (about half of iron) Vickers Hardness: Maximum 1700 (about 2.5 times that of SUJ2) Molding Method: Powder pressing, extrusion molding, CIP molding Compatible Inner Diameter: Within ±1.5 Compatible Diameter: 1mm to 10mm Hole Diameter Precision: Capable of ±0.3μm
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Applications/Examples of results
Water Cooling Pump (for Home Appliances and Data Centers) - Home Appliances (Washing Machines, Water Heaters, etc.) - Data Center Water Cooling Equipment Cooling Fans - Data Center Equipment (Cooling Fans) - In-Car Navigation Fans - Home Appliances (Built-in Fans) Motor-Related - Data Center Equipment (Server Motors) - Dental Handpieces
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Company information
The area where Citizen Fine Devices demonstrates its strength is in the realm of functional components that require small size, precision, high accuracy, and high detail. We believe that our mission is to continue providing high-value-added microdevice products by leveraging the unique technologies we have developed over many years. Utilizing metal processing technology rooted in watch manufacturing, we have consistently supplied small, high-precision components to our customers for many years through a fully integrated production line that encompasses process design, machining, assembly, and functional testing, along with the unique development of our own processing machines. Additionally, mass-producing components with high precision and efficiency using brittle materials is also one of our core technologies. By integrating material technology with ultra-precision machining, thin-film technology, and bonding technology, we produce not only high-precision components such as ceramics and quartz but also high-quality functional device products like liquid crystal devices and sensing devices. Continuing to provide high-value-added products to the market is a significant dream for our employees. We will contribute to the creation of new value through manufacturing driven by the challenge spirit of each individual, working towards the realization of that dream.
