iPROS Manufacturing
  • Search for products by classification category

    • Electronic Components and Modules
      Electronic Components and Modules
      58226items
    • Machinery Parts
      Machinery Parts
      73632items
    • Manufacturing and processing machinery
      Manufacturing and processing machinery
      98049items
    • Scientific and Physics Equipment
      Scientific and Physics Equipment
      33956items
    • Materials
      Materials
      36326items
    • Measurement and Analysis
      Measurement and Analysis
      53349items
    • Image Processing
      Image Processing
      14868items
    • Control and Electrical Equipment
      Control and Electrical Equipment
      51739items
    • Tools, consumables, and supplies
      Tools, consumables, and supplies
      63843items
    • Design and production support
      Design and production support
      12254items
    • IT/Network
      IT/Network
      42255items
    • Office
      Office
      13556items
    • Business support services
      Business support services
      32796items
    • Seminars and Skill Development
      Seminars and Skill Development
      5989items
    • Pharmaceutical and food related
      Pharmaceutical and food related
      27414items
    • others
      72219items
  • Search for companies by industry

    • Manufacturing and processing contract
      7344
    • others
      5011
    • Industrial Machinery
      4426
    • Machine elements and parts
      3280
    • Other manufacturing
      2879
    • IT/Telecommunications
      2542
    • Trading company/Wholesale
      2467
    • Industrial Electrical Equipment
      2310
    • Building materials, supplies and fixtures
      1812
    • software
      1637
    • Electronic Components and Semiconductors
      1561
    • Resin/Plastic
      1485
    • Service Industry
      1438
    • Testing, Analysis and Measurement
      1130
    • Ferrous/Non-ferrous metals
      977
    • environment
      704
    • Chemical
      630
    • Automobiles and Transportation Equipment
      560
    • Printing Industry
      509
    • Information and Communications
      452
    • Consumer Electronics
      419
    • Energy
      326
    • Rubber products
      313
    • Food Machinery
      303
    • Optical Instruments
      280
    • robot
      271
    • fiber
      251
    • Paper and pulp
      232
    • Electricity, Gas and Water Industry
      169
    • Pharmaceuticals and Biotechnology
      167
    • Warehousing and transport related industries
      146
    • Glass and clay products
      141
    • Food and Beverage
      130
    • CAD/CAM
      120
    • retail
      110
    • Educational and Research Institutions
      107
    • Medical Devices
      101
    • Ceramics
      96
    • wood
      89
    • Transportation
      83
    • Medical and Welfare
      63
    • Petroleum and coal products
      62
    • Shipbuilding and heavy machinery
      52
    • Aviation & Aerospace
      47
    • Fisheries, Agriculture and Forestry
      41
    • Public interest/special/independent administrative agency
      29
    • equipment
      29
    • self-employed
      24
    • Government
      21
    • Research and development equipment and devices
      20
    • Materials
      20
    • Mining
      17
    • Finance, securities and insurance
      13
    • Individual
      10
    • cosmetics
      10
    • Restaurants and accommodations
      9
    • Police, Fire Department, Self-Defense Forces
      7
    • Laboratory Equipment and Consumables
      3
    • Contracted research
      3
    • Raw materials for reagents and chemicals
      2
  • Special Features
  • Ranking

    • Overall Products Ranking
    • Overall Company Ranking
Search for Products
  • Search for products by classification category

  • Electronic Components and Modules
  • Machinery Parts
  • Manufacturing and processing machinery
  • Scientific and Physics Equipment
  • Materials
  • Measurement and Analysis
  • Image Processing
  • Control and Electrical Equipment
  • Tools, consumables, and supplies
  • Design and production support
  • IT/Network
  • Office
  • Business support services
  • Seminars and Skill Development
  • Pharmaceutical and food related
  • others
Search for Companies
  • Search for companies by industry

  • Manufacturing and processing contract
  • others
  • Industrial Machinery
  • Machine elements and parts
  • Other manufacturing
  • IT/Telecommunications
  • Trading company/Wholesale
  • Industrial Electrical Equipment
  • Building materials, supplies and fixtures
  • software
  • Electronic Components and Semiconductors
  • Resin/Plastic
  • Service Industry
  • Testing, Analysis and Measurement
  • Ferrous/Non-ferrous metals
  • environment
  • Chemical
  • Automobiles and Transportation Equipment
  • Printing Industry
  • Information and Communications
  • Consumer Electronics
  • Energy
  • Rubber products
  • Food Machinery
  • Optical Instruments
  • robot
  • fiber
  • Paper and pulp
  • Electricity, Gas and Water Industry
  • Pharmaceuticals and Biotechnology
  • Warehousing and transport related industries
  • Glass and clay products
  • Food and Beverage
  • CAD/CAM
  • retail
  • Educational and Research Institutions
  • Medical Devices
  • Ceramics
  • wood
  • Transportation
  • Medical and Welfare
  • Petroleum and coal products
  • Shipbuilding and heavy machinery
  • Aviation & Aerospace
  • Fisheries, Agriculture and Forestry
  • Public interest/special/independent administrative agency
  • equipment
  • self-employed
  • Government
  • Research and development equipment and devices
  • Materials
  • Mining
  • Finance, securities and insurance
  • Individual
  • cosmetics
  • Restaurants and accommodations
  • Police, Fire Department, Self-Defense Forces
  • Laboratory Equipment and Consumables
  • Contracted research
  • Raw materials for reagents and chemicals
Special Features
Ranking
  • Overall Products Ranking
  • Overall Company Ranking
  • privacy policy
  • terms of service
  • About Us
  • Careers
  • Advertising
  1. Home
  2. ProductSearch
  3. Machinery Parts
  4. Bearings
  5. Plastic bearings
  6. Aerospace-grade precious stones (alumina bearings)

Aerospace-grade precious stones (alumina bearings)

  • Added to bookmarks

    Bookmarks list

    Bookmark has been removed

    Bookmarks list

    You can't add any more bookmarks

    By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

    Free membership registration

last updated:Jan 28, 2026

Citizen Finedevice Co.,Ltd
Citizen Finedevice Co.,Ltd
  • Special site
  • Official site

Achieving both lightweight and high precision. Active in the aerospace field.

In the aerospace industry, reducing the weight of aircraft is essential for improving fuel efficiency and performance. At the same time, high reliability and precise operation under harsh conditions are required. The lightweighting of bearing components is a crucial factor in reducing the overall weight of the aircraft and enhancing fuel efficiency. Our precious stone (alumina bearings) achieves high wear resistance and high dimensional accuracy, contributing to weight reduction and improved reliability in the aerospace field. 【Application Scenarios】 - Aircraft engine components - Precision instruments for space exploration vehicles - Bearings for air traffic control systems 【Benefits of Implementation】 - Improved fuel efficiency through weight reduction - Enhanced reliability of equipment due to high-precision operation - High durability under harsh conditions

    Plastic bearings
2021-09-30_09h45_40.png

Aerospace-grade precious stones (alumina bearings)

2021-09-30_09h45_40.png
2021-09-30_09h45_40.png
  • Related Link - https://cfd.citizen.co.jp/aluminaruby/
  • Special site - Product/service details - https://pr.mono.ipros.com/cfd-citizen/product/

Inquire About This Product

  • Contact Us Online
  • Download catalog

basic information

【Features】 - Achieves high wear resistance and high dimensional accuracy - Consistent processing from granulation to molding, firing, and completion for a wide variety of mass production - Clarity that is nearly indistinguishable from synthetic ruby - Capable of providing blanks with dimensions close to completion through near-net-shape molding - Hole diameters range from Φ0.06 to 1.18mm, outer diameters from Φ0.5 to 2mm, and thicknesses from 0.2 to 0.8mm 【Our Strengths】 Citizen Fine Devices leverages the technology cultivated over many years in the field of functional components that require small size, precision, and high detail to provide high value-added microdevice products. Through a consistent production line from process design to machining, assembly, and functional testing, along with the unique development of our own processing machines, we have supplied small, high-precision components to our customers for many years.

Price range

Please contact us for details

Delivery Time

Please contact us for details

Applications/Examples of results

【Usage Examples】 ■Movement for wristwatches ■Signal indicator ■Analog meter *For more details, please refer to the PDF document or feel free to contact us.

catalog(2)

Download All Catalogs
Aluminaruby (alumina bearing)

Aluminaruby (alumina bearing)

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

High-performance, high-precision ceramic components of Citizen Fine Devices.

High-performance, high-precision ceramic components of Citizen Fine Devices.

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

Company information

Citizen

Citizen Finedevice Co.,Ltd

Ceramics

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
  • Special site
  • Official site
Phone number/address

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.

Product/Service List (99)

Related New Products

Handling products from Tohi Grinding Industry Co., Ltd.
Machinery Parts
Handling products from Tohi Grinding Industry Co., Ltd.
オスコ産業

The related categories of Plastic bearings

  • Machinery Parts
  • Bearings
  • Plastic bearings
          

Inquire About This Product

  • Contact Us Online
  • Download catalog

Products

  • Search for Products

Company

  • Search for Companies

Special Features

  • Special Features

Ranking

  • Overall Products Ranking
  • Overall Company Ranking

support

  • site map
IPROS
  • privacy policy Regarding external transmission of information
  • terms of service
  • About Us
  • Careers
  • Advertising
COPYRIGHT © 2001-2026 IPROS CORPORATION ALL RIGHTS RESERVED.
Please note that the English text on this page is automatically translated and may contain inaccuracies.