[Case Study] Implementation Case in the Aerospace Field (Client: JAXA (Japan Aerospace Exploration Agency))

バリューイノベーションジャパン

<Introduction of Case Studies> ADB has been evaluated and adopted in environments where traditional bearings tend to face challenges, such as vacuum, water, rust, high temperatures, high-speed rotation, and micro-vibrations. Here, we introduce actual delivery cases. ■ Delivery Record: JAXA (Japan Aerospace Exploration Agency) ADB has been adopted for equipment used in harsh environments, such as attitude control for artificial satellites requiring long life, thrust vector control for rockets requiring vibration resistance, and rotors for Mars drones requiring high-speed rotation. In particular, in a vacuum environment, the regeneration of coatings on metal surfaces is difficult, and the generated wear particles can accumulate inside the bearing in a sticky manner, potentially causing failures. ADB helps to extend the lifespan and enhance the reliability of bearings in vacuum environments by suppressing the generation of wear particles due to its structure that prevents contact between the balls.

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Bearing 'ADB' that reduces friction by up to 1/14.
A huge response worldwide! Non-contact between balls without a holder = fundamentally solving the challenges of friction, damage, and lubrication management.

<Structure and Mechanism of ADB> The mechanism of ADB is very simple. There are small "indentations" where the outer ring's balls make contact. In a standard bearing, the balls roll directly beneath the shaft, but in ADB, the indentations on the outer ring cause the balls to roll slightly off to the side from directly underneath. As a result, even though the balls make a complete rotation, the distance they travel is shorter. This causes the balls to slightly decelerate when passing through the indentations and to accelerate again after passing through. Consequently, behind the accelerated balls, the following balls are still decelerating, creating small gaps between the balls. ADB utilizes this principle to naturally separate the balls without the use of retainers.
Bearing 'ADB' that reduces friction by up to 1/14.
A huge response worldwide! Non-contact between balls without a holder = fundamentally solving the challenges of friction, damage, and lubrication management.

<Structure and Mechanism of ADB> The mechanism of ADB is very simple. There are small "indentations" where the outer ring's balls make contact. In a standard bearing, the balls roll directly underneath the shaft, but in ADB, the indentations on the outer ring cause the balls to roll slightly off to the side from directly underneath. As a result, even though the balls make a complete rotation, the distance they travel is shorter. This causes the balls to slightly decelerate when passing through the indentations and then accelerate again after passing through. Meanwhile, behind the accelerated balls, the following balls are still decelerating, creating small gaps between the balls. ADB utilizes this principle to naturally separate the balls without the need for a retainer.
Bearing 'ADB' that reduces friction by up to 1/14.
A huge response worldwide! Non-contact between balls without a holder = fundamentally solving the challenges of friction, damage, and lubrication management.

<Structure and Mechanism of ADB> The mechanism of ADB is very simple. There are small "indentations" where the outer ring's balls make contact. In a typical bearing, the balls roll directly beneath the shaft, but in ADB, the indentations on the outer ring cause the balls to roll slightly off to the side from directly underneath. As a result, even though the balls make a complete rotation, the distance they travel is shorter. This causes the balls to slightly decelerate when passing through the indentations and then accelerate again after passing through. Consequently, behind the accelerated balls, the following balls are still decelerating, creating small gaps between the balls. ADB utilizes this principle to naturally separate the balls without the need for a retainer.