信電舎 List of Products and Services

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.

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.

The SDP8H 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 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 mounting flanges or 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 delivers a continuous high torque of 60mNm ○ All parts are made from metal cutting products, ensuring high durability ○ High precision and low noise achieved with precision gears of module 0.15 ○ Standardized reduction stages up to 5 levels to accommodate various applications *For more details, please download the PDF or contact us.

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.

The SDP31HB series is a planetary gear reducer composed of cut metal and sintered metal for the gear part, utilizing ball bearings for the output bearing, pursuing both high durability and low cost. With a high rigidity coaxial structure designed for high load capacity, it is suitable for various lifting devices such as roller drives and conveying equipment, making it widely usable from industrial to household applications. We also manufacture output shaft shape variations and various spacers and pinions for motors. Furthermore, we can quickly respond to small lot requests for geared motors assembled with compatible motors at low prices. 【Features】 ○ Despite being a large high-torque product, it has low backlash (less than 1°) ○ Low noise due to high-precision machining and assembly, even with sintered metal gears ○ High-precision mounting with the outer diameter of the ball bearing matching the inner roller diameter, eliminating the need for adjustment of the mounting position ○ Standard parts include spacers and pinions for motors with inner roller diameters of φ10 to 13, mounting pitches of 20 and 22, and shaft diameters of φ3.175 ○ Widely usable for various lifting devices and conveying equipment, from industrial to household applications *For more details, please download the PDF or contact us.

The SDP16H 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 technologies, as well as our accumulated 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 at low prices for small lots, including motor spacers compatible with various motors, pinions, and geared motors with mounting flanges or φ16 high-torque motors. 【Features】 ○ Established special processing technology for internal gears, achieving low prices ○ Despite being compact (φ16) and lightweight, it delivers a continuous high torque of 400mNm ○ All parts are made from metal cutting products, ensuring high durability ○ High precision and low noise achieved with precision gears of module 0.25 ○ Standardized up to 5 reduction stages to accommodate various applications *For more details, please download the PDF or contact us.

The SD60 series is a low-cost, general-purpose type of gear reducer that uses sintered oil-impregnated bearings throughout, achieving high reliability and durability. It can be combined with AC motors such as induction motors and reversible motors, as well as with high-speed DC motors. We also manufacture geared motors with various gear ratios, motor mounting positions tailored to different applications, and pinions. 【Features】 ○ Compatible with 60mm square outline and φ54 motor ○ Environmental measures implemented to ensure no harmful substances such as cadmium or hexavalent chromium are present ○ Low price, high reliability ○ Quick prototyping available for special gear ratios and modifications to output shaft shapes ○ High reliability and durability achieved by using sintered oil-impregnated bearings throughout *For more details, please download the PDF or contact us.

The SD42 series is a 42-square, case-mounted spur gear reducer that utilizes high-precision gears while offering excellent cost performance, based on the ultra-precision machining, processing technology, and design achievements that our company has cultivated over many years. It can be widely used in various fields, from high-reliability applications such as electric shutters for semiconductor manufacturing equipment, vending machines, food forming machines, and winches, to general industrial machinery. We also manufacture geared motors that can be combined with various applications, including motor mounts, pinions, as well as general-purpose motors and brushless motors. For more details, please download the catalog.

The SD1012 series is a fully metal, ultra-compact high-torque 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 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 adapters, motor pinions, and mounting brackets that fit various motors. 【Features】 - Despite its compact size of 10×12 mm and a total length of 9 mm, it features an easy-to-use coaxial structure. - All parts are made from metal cutting materials, achieving high durability. - It can use components one size smaller, saving space and costs. - High precision and low noise are achieved with precision gears of module 0.15. - Suitable for applications requiring small size and high torque, such as vending machines, housing-related equipment, semiconductor manufacturing equipment, FA equipment, OA equipment, scientific instruments, and medical welfare devices. *For more details, please download the PDF or contact us.

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.

The SD12H series is a fully metal, ultra-compact high-torque 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 applications requiring small size and high torque, including currency exchange 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 types of motors. For more details, please download the catalog.

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.

The SD42HB series is designed based on the proven performance of the SD42 series, utilizing ball bearings in the output stage, sintered oil-impregnated bearings in all preceding stages, and resin helical gears in the input stage, with a focus on high durability, high reliability, and particularly low noise. It can be widely used in environments where silence is required, in scientific instruments that demand maintenance-free operation, as well as in medical welfare equipment and general industrial machinery. We also manufacture geared motors that can be combined with various applications, including motor spacers, pinions, and even general-purpose motors and brushless motors. For more details, please download the catalog.

The SDP31 has a long track record of use in residential equipment and automotive devices. This time, by using ceramic in the pillar section of the planetary gearbox, we have significantly improved torque and reliability. It is now possible to achieve equivalent torque with about 1/4 the volume of a 60-square gearbox, which can assist in the miniaturization and space-saving considerations of your products. With this significant increase in performance and reliability, it is now possible to use it in industrial equipment and other applications. Additionally, by combining it with a brushless motor, it is possible to fully utilize the motor's performance. 【Features】 Compact and space-saving: Achieves high torque equivalent to a 60-square gearbox with about 1/4 the volume. Long lifespan: Passes a 3000-hour durability test using ceramic carrier pins. High torque: Capable of continuous use with a high torque of 2.5N·m, which is 2.5 times that of the conventional SDP31. *For more details, please download the PDF or contact us.

The SDP16 series has been used as a reduction gear for brush motors across various industries for many years. This time, we have significantly improved reliability and durability by incorporating a newly developed ceramic carrier pin and using ball bearings on the output shaft. When combined with brushless motors, it becomes possible to fully utilize the motor's characteristics (high output and long lifespan). The design considers applications in fields such as robotics and industrial equipment, where high reliability is required. 【Features】 Compact and high output: Continuous use at a high torque of 600 mN·m in a Φ16 size is possible. Long lifespan: By using the newly developed ceramic carrier pin and ball bearings on the output shaft, it has passed a durability test of 5000 hours. *For more details, please download the PDF or contact us.

The lead-free compatible version has been added to the SD60 series of 60-square flat gear reducers, which have been loved and supported for many years. There is a need to switch to lead-free compatible products, but we do not want to change the installation or performance. We would like to consider new products. … and so on. We will consider options tailored to your company's needs and image. * We are also gradually considering compatibility for gear reducers other than the SD60 series. * For more details, please download the PDF or contact us.

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.

【Example of Use】 Φ37 Flat Gear Reducer 【Specifications】 For a main shaft (Φ6), settings can be made for slip torque at 2Kgf·cm and 5Kgf·cm. *For our Φ37 Flat Gear Reducer. 【Mechanism Description】 When excessive torque (load) beyond the set value is applied to the main shaft of the reducer, it can prevent damage to geared motors and mechanical mechanisms by allowing the torque transmission to escape. *For more details, please download the PDF or contact us.

We would like to introduce our cutting parts. We offer a lineup of cutting gears such as spur gears, helical gears, and worm gears, as well as individual shafts. We accommodate various materials and treatments, including steel, aluminum alloys, carburizing and quenching, and electrolytic nickel. Please feel free to contact us when you need our services. 【Features】 ■ Module 0.1 and above available ■ Customization available according to your requests *For more details, please refer to the PDF document or feel free to contact us.

The lifespan of a planetary gearbox depends on how it is used, but generally, it becomes difficult to transmit power due to wear on the output shaft bearings, carrier shaft, and gears. Based on our past performance, the first component to wear out among the consumable parts is the carrier shaft (pin). With the spread of brushless motors, efforts have been made to extend motor lifespan; however, the gearboxes have not kept pace. To respond to the demand for longer motor lifespans, we have equipped the output stage with ceramic carrier shafts (pins), significantly enhancing the durability of the gearboxes. [Models Compatible with Ceramic Carrier Shafts (Pins)] ■ SDP13 Series ■ SDP16 Series ■ SDP31 Series *For more details, please download the PDF or feel free to contact us.

The "SDP22HB" is a high-output planetary gearbox designed to meet the demand for a size between our "SDP16" and "SDP31". Despite its small size of Φ22, it features ball bearings in the output bearing, achieving both high output and long lifespan, with a continuous torque of 1.8N·m and a maximum instantaneous torque of up to 2.7N·m. It offers one of the highest torque capacities among domestically produced gearboxes. Additionally, for further longevity, we provide a ceramic carrier pin. 【Features】 ■ Compact size of Φ22 ■ Balances high output and long lifespan ■ Supports continuous torque of 1.8N·m and maximum instantaneous torque of 2.7N·m ■ Ceramic carrier pin available for enhanced longevity *For more details, please download the PDF or feel free to contact us.