First-time Gear Design Course to be Held on May 27, 2026 — Fundamentals and Practice to Prevent Noise and Malfunctions
IR Engineers Education Research Institute will hold a seminar for beginners in gear design on May 27, 2026. The seminar aims to prevent problems and improve quality by learning fundamental theories and practical design procedures to prevent noise and malfunctions.
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IR Engineers Education Research Institute will hold a public seminar that helps organize the causes of problems such as noise, malfunctions, and damage that often occur when first tackling gear design, from both the fundamental theory of gears and design procedures.
While gears are used in many machines and devices, problems such as "loud noise when assembled," "not moving smoothly," or "in the worst case, not rotating" can occur even if the design values are supposedly correct. The causes are often due to omissions in considerations that should be addressed at the design stage, such as how to refine requirements, strength analysis, backlash, contact ratio, errors, and lubrication, or oversights in operation and adjustment. In the seminar, participants will confirm the causal relationship between problems and design/operation factors in advance, leading to recurrence prevention and improvement in quality and efficiency.
## Seminar Overview
* **Seminar Name:** First-time Gear Design Course "Understanding Failure Points to Know Before Design"
* **Format:** In-person attendance or online attendance (Zoom)
* **Date and Time:** May 27, 2026 (Wednesday) 10:00-16:00
* **Location:**
* **[In-person attendance]** Japan IR Co., Ltd. Head Office Seminar Room
* **[Online streaming]** Online attendance via Zoom
* **Capacity:** In-person attendance 16 people, online attendance unlimited
* **Tuition Fee:** 49,500 JPY (tax included) / 1 person (group discount available)
* **Instructor:** Mr. Seiji Ito (Professional Engineer, Mechanical Engineering, Seiji Ito Professional Engineer MDC Office)
## Course Details
This seminar is divided into two parts, front and back, connecting theory and practice for learning. Through this seminar, participants aim to clarify the considerations when determining design values and to be able to confirm consistency with requirements at the design stage. In addition, for planetary gear mechanisms, which tend to be difficult, the necessary conditions for establishment and key points such as reduction ratio calculation methods will be organized.
## Seminar Program
**Part 1: Review of Basic Knowledge and Theory**
* Functions and definitions of gears, types and applications (spur gears, bevel gears, planetary gears, etc.)
* Names, terms, and basic concepts (JIS definitions, pitch circle, module, circular pitch, etc.)
* Properties of tooth profiles (involute tooth profile / cycloid tooth profile)
* Basic theory of gear design (necessary conditions, tooth profile curve, relationship between module, number of teeth, and pitch circle, rotation ratio, torque calculation)
**Part 2: Design Procedures and Practical Application**
* Confirmation of requirements (power, rotational speed, torque)
* Provisional determination of module, number of teeth, and rotation ratio
* Shaft distance and arrangement design / gear configuration (reduction ratio, miniaturization, planetary gear consideration)
* Tooth strength design (bending strength / tooth surface strength / precautions for determining tooth width)
* Backlash design and method of application and confirmation
* Precautions during design (contact ratio, error countermeasures, undercut, modified gears, noise countermeasures such as lubrication)
* Design exercises, gear drafting, design examples
While gears are used in many machines and devices, problems such as "loud noise when assembled," "not moving smoothly," or "in the worst case, not rotating" can occur even if the design values are supposedly correct. The causes are often due to omissions in considerations that should be addressed at the design stage, such as how to refine requirements, strength analysis, backlash, contact ratio, errors, and lubrication, or oversights in operation and adjustment. In the seminar, participants will confirm the causal relationship between problems and design/operation factors in advance, leading to recurrence prevention and improvement in quality and efficiency.
## Seminar Overview
* **Seminar Name:** First-time Gear Design Course "Understanding Failure Points to Know Before Design"
* **Format:** In-person attendance or online attendance (Zoom)
* **Date and Time:** May 27, 2026 (Wednesday) 10:00-16:00
* **Location:**
* **[In-person attendance]** Japan IR Co., Ltd. Head Office Seminar Room
* **[Online streaming]** Online attendance via Zoom
* **Capacity:** In-person attendance 16 people, online attendance unlimited
* **Tuition Fee:** 49,500 JPY (tax included) / 1 person (group discount available)
* **Instructor:** Mr. Seiji Ito (Professional Engineer, Mechanical Engineering, Seiji Ito Professional Engineer MDC Office)
## Course Details
This seminar is divided into two parts, front and back, connecting theory and practice for learning. Through this seminar, participants aim to clarify the considerations when determining design values and to be able to confirm consistency with requirements at the design stage. In addition, for planetary gear mechanisms, which tend to be difficult, the necessary conditions for establishment and key points such as reduction ratio calculation methods will be organized.
## Seminar Program
**Part 1: Review of Basic Knowledge and Theory**
* Functions and definitions of gears, types and applications (spur gears, bevel gears, planetary gears, etc.)
* Names, terms, and basic concepts (JIS definitions, pitch circle, module, circular pitch, etc.)
* Properties of tooth profiles (involute tooth profile / cycloid tooth profile)
* Basic theory of gear design (necessary conditions, tooth profile curve, relationship between module, number of teeth, and pitch circle, rotation ratio, torque calculation)
**Part 2: Design Procedures and Practical Application**
* Confirmation of requirements (power, rotational speed, torque)
* Provisional determination of module, number of teeth, and rotation ratio
* Shaft distance and arrangement design / gear configuration (reduction ratio, miniaturization, planetary gear consideration)
* Tooth strength design (bending strength / tooth surface strength / precautions for determining tooth width)
* Backlash design and method of application and confirmation
* Precautions during design (contact ratio, error countermeasures, undercut, modified gears, noise countermeasures such as lubrication)
* Design exercises, gear drafting, design examples