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Gearbox Product List and Ranking from 41 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

Gearbox Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. Matex Co.,Ltd. Osaka//others
  2. null/null
  3. マキシンコー Osaka//Industrial Machinery
  4. 4 信電舎 東京本社 Tokyo//Manufacturing and processing contract
  5. 5 広和機工 本社 Hiroshima//Industrial Machinery
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Gearbox Product ranking

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. Brushless Motor Planetary Gearbox "SDP Series" 信電舎 東京本社
  2. We Will Exhibit Various Reducers at the Mechanical Components & Technology Expo in Osaka! Matex Co.,Ltd.
  3. Aspen Mtell Predictive Maintenance Solution アスペンテックジャパン/AspenTech
  4. 4 What is the relationship between gear ratio and torque? Explanation of the calculation method with specific examples. スターライト工業
  5. 5 Precision Planetary Gearbox for Servo Motors 'PAT-B Series' 椿本マシナリー

Gearbox Product List

76～90 item / All 619 items

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22kW 1/5 reduction gear MT-22-1/5R・L

22kW 1/5 reduction gear MT-22-1/5R・L

22kW with 1/5 reduction gear <Reduction gear, transmission, and speed increaser without motor>

The "MT-22-1/5R・L" is a 1/5 reduction gear for 22kw. Installation can be done at any angle—horizontal, vertical, or sideways—and since it is a mechanical reduction rather than an electric one, there are no issues with torque reduction at low speeds. Additionally, there are many models of reduction gears, speed increasers, variable speed drives, and forward/reverse switches that are not listed in the catalog. If you provide us with the power (kw), reduction ratio, speed increase ratio, variable speed ratio, input rotation speed, and input/output torque, we will send you the drawings of the suitable models. 【Features】 ■ Installation at any angle is possible ■ No issues with torque reduction at low speeds *For more details, please refer to the PDF materials or feel free to contact us.

  • Transmission

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Two-speed reduction gear "DSIR"

Two-speed reduction gear "DSIR"

Two types of reduction ratios! A two-stage speed reducer that can shorten the operating time of the manual reducer.

The "DSIR" is a newly developed input two-stage reduction gear designed to shorten the operating time of manual reduction gears. It can be used with manual reduction gears or valves that have an input flange size of F14 or FA14, reducing the required input rotation speed and the operating time of manual control valves. 【Features】 ○ Two reduction ratios: 1:1 and 4.25:1 ○ Protection rating: IP67 (IP68 is optional) ○ Ambient temperature: -40°C to 120°C ○ Options → Padlock device → Machining for direct attachment to valves For more details, please contact us or download the catalog.

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All-metal ultra-compact planetary gear reducer

All-metal ultra-compact planetary gear reducer

Ultra-compact! A full metal planetary gear reducer lineup starting from size φ5.

The "SDP series" is a full metal miniature planetary gear reducer that uses ultra-precision gears with module sizes ranging from 0.08 to 0.5, with an outer diameter of φ5 to φ31. It features a small volume, lightweight design, and a large reduction ratio, achieved through the low-cost mass production of internal gears using ultra-precision metal processing technology, resulting in the completion of full metal ultra-miniature planetary gear reducers with diameters of φ5 and φ6. ○ SDP5H: Outer diameter 5mm, total length 9.8 to 19.8mm, reduction ratio 1/4 to 1/1024, maximum instantaneous torque 10 to 40mNm, rated torque 5 to 20mNm. ○ SDP6H: Outer diameter 6mm, total length 10.6 to 21mm, reduction ratio 1/3.7 to 1/699, maximum instantaneous torque 20 to 60mNm, rated torque 10 to 40mNm. There is also a series combined with high-torque motors of φ5 and φ6, so please inquire for more information.

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Ultra-compact all-metal planetary gear reducer, high torque, SDP8HB series

Ultra-compact all-metal planetary gear reducer, high torque, SDP8HB series

We established a special processing technology for internal gears and achieved low prices.

The SDP8HB series is a fully metallic, ultra-compact, high-precision planetary gear reducer that has earned the trust of our customers over many years, born from our proud ultra-precision machining and processing technology, as well as the accumulation of design know-how. It can be used in a wide range of fields, including robotic joints, electric hinges, electric doors, linear actuators, semiconductor manufacturing equipment, precision measuring instruments, optical devices, and medical welfare equipment. We also offer custom solutions for various motor adapters, pinions, and geared motors with φ8 high-torque motors, available in small lots at low prices. 【Features】 ○ Established special processing technology for internal gears, achieving low prices ○ Despite being compact (φ8) and lightweight, it provides a continuous high torque of 60mNm ○ All parts are made from metal cutting products, ensuring high durability ○ High precision and low noise are achieved with precision gears of module 0.15 ○ Using ball bearings for the output shaft bearing ensures high load capacity and high reliability *For more details, please download the PDF or contact us.

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Ultra-compact all-metal planetary gear reducer SDP6H series

Ultra-compact all-metal planetary gear reducer SDP6H series

Achieved low price, compact size (φ6), lightweight, continuous high torque of 40mNm, and high durability.

The SDP6H series is a fully metal, ultra-compact, high-precision planetary gear reducer that has earned the trust of our customers over many years, born from our proud ultra-precision machining and processing technology, as well as the accumulation of design know-how. It can be used in a wide range of fields including robot joints, electric hinges, electric doors, linear actuators, semiconductor manufacturing equipment, precision measuring instruments, optical devices, and medical welfare equipment. We also offer custom solutions at low prices for small lots, including motor spacers compatible with various motors, pinions, and geared motors with mounting flanges and high-torque motors with a diameter of 6mm. 【Features】 ○ Established special processing technology for internal gears, achieving low prices ○ Despite being compact (φ6) and lightweight, it provides continuous high torque of 40mNm ○ All parts are made from metal cutting products, ensuring high durability ○ High precision and low noise achieved with precision gears of module 0.1 ○ Standardized up to 5 reduction stages to accommodate various applications *For more details, please download the PDF or contact us.

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Small Spur Gear Reducer High Power High Torque Type SD16H Series

Small Spur Gear Reducer High Power High Torque Type SD16H Series

For applications requiring compact high torque. Achieving space-saving, cost reduction, and high durability.

The SD16H series is a fully metal, ultra-compact, high-torque spur gear reducer that has earned the trust of our customers over many years, born from our pride in ultra-precision machining and processing technology, as well as the accumulation of design know-how. It is suitable for applications requiring small size and high torque, including vending machines, housing-related equipment, semiconductor manufacturing equipment, FA equipment, OA equipment, scientific instruments, and medical welfare devices. We offer custom solutions at low prices even for small lots, including specification changes such as output shaft shapes and various peripheral components like motor mounts and motor pinions that fit different motors. 【Features】 ○ Despite its small size of φ16 and a total case length of 14.5mm, it features an easy-to-use coaxial structure. ○ Provides twice the high torque compared to standard products of the same shape. ○ All parts are made from metal cutting materials, ensuring high durability. ○ Allows for the use of a one-size-smaller component, saving space and cost. ○ Achieves high precision and low noise with precision gears of module 0.2 to 0.25. *For more details, please download the PDF or contact us.

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Small Spur Gear Reducer High Power High Torque Type SD60H Series

Small Spur Gear Reducer High Power High Torque Type SD60H Series

The strength of the entire gear and bearing has been enhanced, achieving high reliability and high durability.

The SD60H series is a spur gear reducer that enhances the gear and bearing strength across all stages based on the proven performance of the SD60 series, achieving high reliability and durability to meet high torque demands. There is also a type that uses ball bearings in the output stage. It can be combined with AC motors such as induction motors and reversible motors, as well as with high-speed DC motors. We can manufacture geared motors with various gear ratios, motor spacers tailored to different applications, and pinions. 【Features】 - Compatible with 60mm square and φ54mm in-line motors - Environmental measures implemented to ensure no harmful substances such as cadmium or hexavalent chromium are present - Low cost and high reliability - Rapid prototyping available for special gear ratios and modifications to output shaft shapes - Compatible with AC motors such as induction motors and reversible motors, as well as high-speed DC motors *For more details, please download the PDF or contact us.

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Proposal for Custom Reducers *Introduction of Case Studies

Proposal for Custom Reducers *Introduction of Case Studies

Are you feeling dissatisfied with the existing gear reducers?

Typically, each gearbox manufacturer prepares and sells standard catalog products. As a result, catalog items tend to have similar specifications and characteristics across different companies. Our company also offers standard catalog products, but in reality, we sell more custom products. As part of our initiatives at Shinden-sha, we provide two types of custom solutions: (1) Semi-custom solutions: Incorporating your requests based on catalog products. (2) Full custom solutions: Designing from scratch according to your requests. In the PDF link below, we introduce an example of a custom gearbox used in the μDD motor by Microtech Laboratory Co., Ltd. *For more details, please refer to the PDF document or feel free to contact us.

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New Product: Compact High-Power Planetary Gearbox for Brushless Motors SDP13HB

New Product: Compact High-Power Planetary Gearbox for Brushless Motors SDP13HB

The SDP13HB has been newly introduced in the small planetary gearbox series from Shin Den Sha.

Despite its small size of Φ13, it achieves high output and long lifespan by incorporating ball bearings in the output bearing. It is intended for applications such as robotic hands and medical devices. Although small at Φ13, it can handle a continuous torque of 150 to 300 mN·m and a maximum instantaneous torque of 350 to 500 mN·m. *The values may vary depending on the reduction ratio. We are also open to discussing custom solutions for backlash and back drivability, so please feel free to consult with us.

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Introduction of the high-output 60-degree square tooth reduction gear SD60.

Introduction of the high-output 60-degree square tooth reduction gear SD60.

It's not just gear the size of a grain of rice. There are larger ones too!

In recent years, have you thought that Shinden-sha only has small gears and reduction gears because they promote "We have gears the size of a grain of rice!" at exhibitions? However, Shinden-sha also offers large reduction gears. We have reduction gears that are not just the size of a grain of rice, but also the size of a rice ball. We provide standard specifications up to 60mm square. This time, we would like to introduce the lesser-known flat gear reduction gear SD60. ■ Features 1. A rich lineup of reduction ratios 2. Equipped with sintered bearings for all stages to ensure high durability 3. For further durability improvement, it is possible to equip ball bearings on the output bearing and all stage bearings as an option 4. Options available for shaft length and D-cut additions 5. We also accept custom production of spacers for motor mounting ■ Adoption Results Used in cash handling equipment, gaming machines, etc. ■ Others In addition to catalog-listed products, we also have production records for custom 70mm square planetary reduction gears. Please feel free to consult us. ■ Announcement We will be exhibiting at the High Precision and Difficult Processing Technology Exhibition 2023. Date: November 29 to December 1, 2023 Location: Tokyo Big Sight Hall 1-2 Booth No: K-84 *We will be exhibiting from the booth of Chikuma City, Nagano Prefecture.

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High-Precision Reducer for Servo Motors 'AH/AHK Series'

High-Precision Reducer for Servo Motors 'AH/AHK Series'

High efficiency, low noise! High-precision reducer for servo motors compatible with various motor shaft diameters.

The "AH/AHK Series" is a high-precision reduction gear for servo motors that accommodates various motor shaft diameters. This series features high torque, high efficiency, and low noise, while reducing backlash. It has optimized inertia moment and output torque. Additionally, we offer a flange shaft as an optional component. 【Features】 ■ High torque ■ High efficiency ■ Low noise ■ Reduces backlash *For more details, please refer to the PDF document or feel free to contact us.

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Servo Motor Gearbox "P2/P2R Series"

Servo Motor Gearbox "P2/P2R Series"

The miniaturization and high precision of internal components have resulted in a smaller internal moment of inertia!

The "P2/P2R series" is a gearbox for servo motors with a backlash accuracy of 14 arc minutes or less. Due to the miniaturization and high precision of internal components, the internal moment of inertia has been reduced. The orthogonal part of the P2R series uses spiral bevel gears. Additionally, it has achieved approximately 25% weight reduction compared to the conventional P series (only for P2). 【Features】 ■ Reduced backlash ■ Reduced moment of inertia ■ Lightweight ■ Low cost ■ Uses spur gears *For more details, please refer to the PDF materials or feel free to contact us.

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Gear Reducer "AE/AER Series"

Gear Reducer "AE/AER Series"

Simplifying specifications and reducing costs! Achieving high load tolerance, low noise, and low vibration by improving tooth contact rate.

The "AE/AER Series" is a low-cost type of reducer. We offer the "AE Series" with a straight type output shaft ball bearing and the "AER Series" with an angle type output shaft ball bearing. The "AE Series" simplifies specifications to reduce costs. The "AER Series" boasts over 30% higher output torque than the spiral bevel gear due to the adoption of spiral bevel gears. 【Features】 ■ AE Series - Output shaft ball bearing - straight type - Simplified specifications to reduce costs - Only one type of backlash - Output shaft available only with key *For more details, please refer to the PDF document or feel free to contact us.

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Gear Reducer "AD/ADR/ADS Series"

Gear Reducer "AD/ADR/ADS Series"

A series with a shaft equipped with keys and taps on the input side is also available!

The "AD/ADR/ADS Series" is a flange output reduction gear. We offer the "AD Series" with a straight type output shaft taper roller bearing, the "ADR Series" with an angle type, and the "ADS Series" with an input side shaft type. Among them, the "ADS Series" features a shaft with a key and tap on the input side, allowing for easy driving using timing belts or couplings. This enables flexible design and space-saving during motor assembly. 【Features】 ■ AD Series - Flange output - Output shaft taper roller bearing, straight type - 7 types with 16 variations (reduction ratios from 4 to 100) *For more details, please refer to the PDF materials or feel free to contact us.

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Cost reduction with flange output! Planetary gear reducer "PD Series"

Cost reduction with flange output! Planetary gear reducer "PD Series"

Introducing a planetary gearbox with 15 types of reduction ratios (from 3 to 100)!

The "PD Series" is a straight-type planetary gearbox with output shaft ball bearings. It offers 15 types of reduction ratios (from 3 to 100) and is compatible with various motor shaft diameters. Since grease is sealed in as the lubricant, there is no need for lubricant replacement. 【Features】 ■ Low cost ■ High efficiency ■ Reduced backlash ■ Optimized moment of inertia ■ Lightweight ■ Flanged output *For more details, please refer to the PDF document or feel free to contact us.

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