木村洋行 List of Products and Services

Kaidon’s "Ultra-Thin Ball Bearings" feature a small cross-sectional dimension, achieving space-saving and lightweight design, which enhances design flexibility. The inner diameters range from 25.4 to 1016 mm, with a wide lineup of cross-sectional dimensions from 4.76 to 25.4 mm. There are four-point contact types, angular contact types, and deep groove types, suitable for use in special environments. 【Features】 - As a specialized manufacturer, we have established a mass production system that can accommodate short delivery times. - Being ball bearings, they achieve stable low torque and high rotational accuracy. - Custom solutions are available for general industrial applications, aerospace and defense applications, semiconductor manufacturing equipment, medical devices, etc. - In addition to standard bearing steel, materials for corrosion-resistant applications are also available (such as SUS440C stainless steel and EnduraCoat). - We have a proven track record of providing hybrid types using ceramic balls for vacuum environments, such as those for semiconductor manufacturing equipment. - The four-point contact type, which can handle combined loads with a single bearing, achieves further space-saving and lightweight design by replacing combination bearings with angular contact types. *For applications requiring even thinner cross-sections, please consider the "Ultra Slim" series.

As the name "Ultra Slim" suggests, this is an ultra-thin ball bearing with the world's smallest cross-section dimensions of 2.5 x 3.0 mm, supplied exclusively by Kaydon Corporation. Kaydon's "Ultra Slim Ball Bearings" are available in the following three types: ■ Type-X (4-point contact type) ■ Type-A (angular contact type) ■ Type-C (deep groove type) For extremely small spaces that conventional ultra-thin ball bearings cannot accommodate, please consider this Ultra Slim Ball Bearing.

【Ultra-thin Ball Bearings】 ■ Contributes to lightweight and space-saving of devices with astonishing thinness and lightness. ■ In addition to angular contact (Type-A) and deep groove (Type-C), a lineup of 4-point contact type (Type-X) is available. ■ The 4-point contact type can handle combined loads of radial, thrust, and moment with a single bearing. ■ Achieves light torque rotation and high rotational accuracy unique to balls. ■ Proven performance in vacuum environments for semiconductor devices and space applications. 【Ultra-Slim Ball Bearings】 ■ Even thinner than ultra-thin ball bearings, featuring an ultra-thin profile. ■ Similar to the ultra-thin series, Type-X, Type-A, and Type-C are available. 【Ultra-thin Flanged Ball Bearings】 ■ The ultra-thin series is available with flanges, allowing for bolt fastening installation. ■ As a 4-point contact type (Type-X), it can handle combined loads with a single bearing. 【Custom Bearings】 ■ Many achievements in fully customized products tailored to your specifications. 【Large Diameter Turntable Bearings (Swing Rings)】 ■ Capable of manufacturing up to an outer diameter of 240 inches (6,096 mm). ■ Customization of gears for inner and outer rings is also possible.

In a space environment, lightweight and space-saving designs are required, and precise movements are demanded under vacuum conditions and a wide temperature range, making it a very harsh environment for bearings to operate in. KAYDON's Reali-Slim has achieved smooth rotation in space for many projects, including the next-generation space environment work robot CAESAR. A stainless steel series suitable for space is also available in a wide range of sizes, up to 25 inches. Based on over 75 years of experience, we provide bearings that are optimal for the operating environment. **Benefits of Choosing KAYDON** - Minimizes the space occupied by bearings in equipment - Reduces the weight of the equipment - Allows for larger diameters of hollow shafts, enabling internal wiring - Prevents outgassing by changing bearing materials - Applicable to various environmental temperatures - High rigidity achieved by adjusting internal gaps - Bearing precision can also be adjusted **Examples of Adoption** - Satellites - Space stations - Space telescopes - Space probes - Space environment work robots, and more **You can download examples of the adoption of the space robot CAESAR from here.**

Kaidon ultra-thin bearings have been adopted in various robots due to their compact size, space-saving design, and customization according to specifications for operation in special environments (vacuum, high temperature/low temperature) and high precision requirements. We provide optimal bearings based on approximately 80 years of experience. **Benefits of Adopting Kaidon** - Minimizes the space occupied by bearings in equipment - Reduces the weight of the equipment - Allows for a larger inner diameter of the hollow shaft, enabling the use of internal space for wiring, etc. - Prevents outgassing by changing bearing materials - Applicable to various environmental temperatures - Specifications tailored to applications, such as increasing rigidity by adjusting internal gaps - Selection of high precision specifications is also possible **Examples of Adoption** - Semiconductor transport robots (for atmospheric and vacuum environments) - Industrial robots (for painting, welding, etc.) - Humanoid robots - Laser cutting robots, among others **You can download examples of the adoption of the laser cutting robot "Robocut" from here.**

Kaidon ultra-thin bearings have been adopted in various robots due to their compact size, space-saving design, and customization according to specifications for operation in special environments (vacuum, high/low temperatures) and high precision requirements. Based on approximately 80 years of experience, we provide optimal bearings. 【Benefits of Using Kaidon】 ■ Minimizes the space occupied by bearings in equipment ■ Reduces the weight of equipment ■ Allows for a larger inner diameter of the hollow shaft, enabling the use of internal space for wiring, etc. ■ Prevents outgassing by changing the bearing material ■ Applicable to various environmental temperatures ■ Customizable specifications for high rigidity by adjusting internal gaps ■ High precision specifications can also be selected 【Examples of Adoption】 ■ Semiconductor transport robots (for atmospheric and vacuum environments) ■ Industrial robots (for painting, welding, etc.) ■ Humanoid robots ■ Laser cutting robots, among others ■ You can download examples of the adoption of the robot suit "Varileg" from here.

In the space environment, in addition to the need for weight reduction and space-saving, bearings are subjected to extremely harsh conditions due to the requirements for precise movement in a vacuum and across a wide temperature range. Kaydon's ultra-thin ball bearings have enabled smooth rotation in space for many projects, including the Mars rover "Perseverance." A stainless steel series suitable for space is also available in a wide range of sizes, up to 25 inches. Based on over 75 years of experience, we provide bearings that are optimal for the usage environment. **Benefits of Choosing Kaydon** - Minimizes the space occupied by bearings in equipment - Reduces the weight of equipment - Allows for larger diameters of hollow shafts, enabling internal wiring - Reduces outgassing by changing bearing materials - Applicable to various environmental temperatures - Increases rigidity by adjusting internal gaps - Allows for selection of bearing precision **Examples of Applications** - Satellites - Space stations - Space telescopes - Mars rovers - Robotics for space environments, and more **You can download the case study of the Mars rover "Perseverance" from here.**