[Useful Information] Explanation of Gear Damage and Strength Design / OJIC Corporation

Introduction to gear damage, types, and causes!

The strength design of gears, like the design of general machinery, is carried out with the aim of preventing damage, and among various designs, strength design occupies a particularly important position. The strength design for gears is mainly conducted regarding: - Bending strength of the teeth - Surface pressure strength of the teeth - Scoring strength of the tooth surface against seizure. There are many types of gear damage, but they can be broadly classified into two categories: tooth breakage and surface damage. Common examples of tooth breakage include fatigue breakage and overload breakage. Fatigue breakage occurs when a load is repeatedly applied that generates bending stress exceeding the material's fatigue limit at the root of the tooth, leading to cracks that initiate from the root fillet and propagate, causing tooth breakage. Overload breakage occurs when an extremely large overload acts on the tooth, resulting in breakage due to one or a few repetitions of slight loads. As for surface damage... For more details, please refer to the link below.

• gear
• Other machine elements
• Processing Contract

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SPACECOOL Co., Ltd. is pleased to announce its support for the purpose of the newly established memorial day "Day to End the Too Hot Summer" by the Japan Climate Leaders Partnership (JCLP). In order to address the increasingly severe heat waves, we will continue to promote the expansion of our zero-energy cooling radiative cooling material "SPACECOOL." JCLP has registered August 8, 2025, and every August 8 thereafter, as "Day to End the Too Hot Summer" with the Japan Anniversary Association. — What is the new memorial day "Day to End the Too Hot Summer"? In recent times, many regions in Japan have been experiencing consecutive days of extreme heat, and the impacts of climate change are manifesting in serious ways in our lives. Nevertheless, reports and discussions linking this to "climate change" are limited, and there is currently a lack of momentum for climate change measures. In response to this issue, JCLP has decided to establish the "Day to End the Too Hot Summer" during this hottest time of the year, creating a social impetus to reframe "heat" as a climate change issue. This memorial day aims to share the commitment to halt the climate crisis for future generations and serve as a starting point for advancing the systemic transformation of society as a whole.

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Dear Valued Customers, Thank you very much for your continued support. We would like to inform you that our company will be closed for summer vacation from Wednesday, August 13, 2025, to Friday, August 15, 2025. We will resume normal operations on Monday, August 18. We appreciate your understanding and cooperation.