ケイセブン List of Products and Services

Our company has developed an improved version (patent pending) of the K7 Cap, which is a theft prevention cap for trailers (chassis). The K7 Cap is designed using materials that consider ease of handling at work sites, resulting in a design that combines lightweight and strength. Additionally, by improving the cap shape, we have achieved a more compact design compared to conventional caps. 【Features】 ■ Improved version ■ Specifications that combine high practicality and reliability ■ Higher reliability achieved by using a special key when securing to the kingpin ■ The key section is located on a protruding part, making removal easy ■ Structure that minimizes dirt on hands *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

K7 Corporation was established on April 26, 1965. We provide various development products based on unique ideas to the market, engage in engineering consulting, and further established the Coupling Division in April 1992 and the Industrial Machinery Division in August, aiming to enhance and expand our business operations, which continues to this day. 【Business Activities】 ■ Manufacturing and sales of K-7 couplings ■ Planning, manufacturing, and sales of marine equipment and devices ■ Planning, design, manufacturing, and sales of general plant equipment ■ Design, manufacturing, and sales of industrial machinery and equipment ■ Design, manufacturing, and sales of instrumentation systems ■ Planning and sales of food-related equipment ■ Consulting services related to the above ■ Sales of petroleum products *For more details, please refer to the PDF document or feel free to contact us.

• Coupling
• Mechanical Design
• others

The "H Series" is a K-7 coupling that absorbs eccentricity and has no reaction force. It consists of two hub components and an intermediate torque transmission component (transmitter), making a total of three parts. Replacing the intermediate torque transmission component is also easy. It features a lightweight and simple structure. 【Features】 ■ Compact and simple structure ■ Absorbs eccentricity and has no reaction force ■ No need for centering ■ Maintenance-free ■ Balanced to withstand high speeds ■ Low cost ■ Energy-saving *For more details, please refer to the PDF document or feel free to contact us.

• Coupling

The "F Series" is a compact and simple structure K-7 coupling. It is a combination of Oldham couplings, featuring a simple structure where a specially shaped intermediate torque transmission member is simply inserted into the rubber bush hole of one side (P side) flange of a JIS flange type flexible coupling. There is an advantage of being able to utilize one side of the existing flexible coupling flange as it is, allowing for easy removal and installation without moving the flange part. 【Features】 ■ Compact and simple structure ■ Absorbs eccentricity without reaction force ■ No alignment required ■ Maintenance-free ■ Energy-saving *For more details, please refer to the PDF materials or feel free to contact us.

• Coupling

The "R Series" is a modified version of the "MD Series," specifically designed to have a shorter overall length, and is a K-7 coupling. It transmits through two hubs and a specially shaped intermediate torque transmission member (transmitter). Furthermore, it is economical due to its simple structure and maintenance-free design. 【Features】 ■ Compact and simple structure ■ Absorbs eccentricity without reactive force ■ Maintenance-free ■ No need for centering ■ Balances to withstand high speeds ■ Energy-saving ■ Low cost *For more details, please refer to the PDF document or feel free to contact us.

• Coupling

The "MD Series" is a K-7 coupling that does not require alignment. It consists of three parts: two flange (hub) components and an intermediate torque transmission component. Assembly and replacement of the intermediate torque transmission component are also easy. It allows for significant misalignment, eliminating the need for alignment work during installation. The intermediate torque transmission component is made of resin and does not require lubrication. 【Features】 ■ Compact and simple structure ■ Absorbs eccentricity without reaction force ■ No alignment required ■ Maintenance-free ■ Energy-saving ■ Low cost *For more details, please refer to the PDF document or feel free to contact us.

• Coupling

The "SD Series" is a compact and simple structure K-7 coupling. It consists of three parts: two hub components and an intermediate torque transmission component. Assembly and replacement of the intermediate torque transmission component are also easy. Additionally, we have achieved a low-inertia mechanism that withstands high-speed rotation by making the uniquely shaped transmitter slim and lightweight. 【Features】 ■ Compact and simple structure ■ Absorbs eccentricity without reaction force ■ Non-backlash ■ High torque and high performance ■ Balanced to withstand high speeds *For more details, please refer to the PDF document or feel free to contact us.

• Coupling

This catalog introduces the "K-7 Coupling," which accommodates large eccentricity and angular errors compared to conventional flexible couplings. We offer five series: SD, MD, R, F, and H, to meet a wide range of demands. Each series includes details on features, applications, dimensions, and more. [Contents] ■ About the K-7 Coupling ■ List of K-7 Coupling Models - SD Series - MD Series - R Series - F Series - H Series *For more details, please refer to the PDF document or feel free to contact us.

• Coupling

The "KAYSEVEN KAYFLEX Coupling" is a type of disc-type coupling and is a new flexible coupling with excellent features. It includes a lineup such as the "S type," which is used for compressors and elevators, and the "L & LL type," which is suitable for pumps and agitators. Due to its sufficiently high natural frequency against torsional vibrations, it has a wide range of applications. 【Features】 ■ High torque transmission ■ Space-saving design ■ Large allowable misalignment ■ Maintenance-free ■ No backlash *For more details, please refer to the PDF document or feel free to contact us.

• Coupling

Our company offers the 'SD Series' of shaft couplings, which can be used in robots, OA equipment, XY tables, computer-related devices, vending machines, and more. They can be easily installed by anyone, eliminating the need for skilled alignment work. Additionally, they prevent a decrease in machine efficiency due to installation errors and allow for energy savings. 【Features】 ■ Compact and simple structure ■ Absorbs eccentricity without reaction force ■ Non-backlash ■ Small and high-performance ■ Balanced to withstand high speeds, etc. *For more details, please feel free to contact us.

• shaft
• Axle parts