[Case Study] Introduction of a Case in the Marine Research Field (Client: JAMSTEC (Japan Agency for Marine-Earth Science and Technology))

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-vibration. Here, we introduce actual delivery cases. ■Delivery Record: JAMSTEC (Japan Agency for Marine-Earth Science and Technology) Leveraging the feature of being able to use seawater directly as a lubricant, ADB has been adopted in equipment used in seawater environments. Traditionally, seals to prevent seawater intrusion and ballast pumps for lubrication and cooling were often necessary, but ADB can utilize seawater itself for lubrication, allowing for the simplification of these mechanisms. As a result, in addition to simplifying the structure, we have successfully reduced torque to about 1/100 of the conventional level.

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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.