村田発條 List of Products and Services

The "Beehive Spring" achieves a reduction in the movable part mass (retainer) of the valve train by shaping the coil diameter on the movable side (retainer side) of the spring to be tapered. It is called Beehive because it resembles a beehive. 【Features】 ■ Tapered coil diameter on the movable side (retainer side) of the spring ■ Lightweight movable part mass (retainer) of the valve train *For more details, please refer to the external link or feel free to contact us.

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The "egg-shaped cross-section spring" can lower the installation height and reduce the counterpart dimensions, making it possible to save space and reduce the weight of components. It is possible to increase the load without changing the counterpart dimensions or installation height, or to reduce the stress. As a result, it has become possible to design springs with specifications that cannot be achieved with conventional round wire (circular cross-section). [Features] - Reduction of contact height - Increase in load (decrease in stress) *For more details, please refer to the external link or feel free to contact us.

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Murata Spring is advancing the development of high-strength springs that anticipate customer needs, conducting research day and night to respond to high stress, weight reduction, and space-saving requirements. Equipped with comprehensive testing facilities, we ensure the reliability of new product development and existing products. Additionally, we utilize FEM (Finite Element Method) for optimal design, significantly improving product reliability. 【Features】 ■ Fundamental Technologies - Adoption of high-strength materials - Research and development of suitable surface treatments - Nitriding treatment - Multi-stage shot peening ■ Analytical Technologies - Stress analysis using FEM (design of optimal shapes) - Data analysis *For more details, please refer to the external link or feel free to contact us.

• Spring

Murata Spring Co., Ltd. was founded in 1913, coinciding with the dawn of the Japanese industrial sector, and has contributed to the modernization of Japanese industry through its focus on springs, now approaching its 100th anniversary. Murata Spring's products are functional components used in various industrial fields, including automobiles, home appliances, and construction machinery. In the manufacturing of these springs, we have established a solid position as a specialized manufacturer by maintaining a high level of technology and providing quality that ensures sufficient trust and satisfaction for our customers through fundamental research, technological development, experimentation, and design. In particular, we take pride in our automotive engine valve springs, which are among the best in the world in terms of both quality and quantity. [Features] - Design and production are carried out using unique technology. For more details, please contact us or download the catalog.

• Other machine elements

We produce various types of rings such as C-type retaining rings, concentric retaining rings, and E-type retaining rings using excellent molding and heat treatment technologies. Among them, torsion rings and friction rings for vibration noise countermeasures are well-received by our customers due to their high quality. 【Features】 ○ By installing snap rings on idle gears, vibration and noise of the gears are reduced. For more details, please contact us or download the catalog.

• Other machine elements

Complexly shaped thin plate springs are produced through a consistent process of molding and processing, supported by mold design technology based on extensive experience and advanced tooling equipment, ranging from precision presses to presses of up to 300 tons. 【Features】 ○ Active in various fields including automotive, electronic devices, and home appliances. For more details, please contact us or download the catalog.

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Compression coil springs and tension coil springs are used to obtain axial loads in the spring direction, while torsion coil springs are springs that utilize the generation of torque in the rotational direction. They are mainly used as return springs for automotive pedals and hand brakes. 【Features】 ○ Springs that utilize the generation of torque in the rotational direction ○ Mainly used as return springs for automotive pedals and hand brakes ● For more details, please contact us or download the catalog.

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Tension coil springs are springs used in the pulling direction, in contrast to compression coil springs. They have hook parts at both ends for attachment to counterpart components, making them versatile springs with a wide range of applications. 【Features】 ○ They have hook parts at both ends for attachment to counterpart components, offering a wide range of applications. For more details, please contact us or download the catalog.

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Valve springs mounted on the engine, which can be called the heart of the car, and damper springs for the clutch that transmits engine power to the transmission. 【Features】 ○ Utilizes torsional elastic energy generated by compression along the coil axis For more details, please contact us or download the catalog.

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