Specifications:
D1, Inner diameter (bottom): 140 mm
D2, Outer diameter (bottom): 164 mm
D3, Inner diameter (top): 105 mm
D4, Outer diameter (top): 129 mm
H, Height: 334 mm
N, Total coils: 4
Stiffness N/mm: 15.9
d, Wire diameter: 12 mm
Masuma coil springs are produced of high-quality SUP9 structural steel using proper quenching, tempering, heating and winding technologies. These springs are also additionally processed to strengthen the surface layer and increase the fatigue strength.
All the new types of Masuma springs are computed and modeled in the engineering office of the company in Japan using the ANSYS finite element analysis software system. Enhanced production control guarantees the alloy composition stability and the high reliability of the springs.
Masuma is a world brand for spare parts, accessories and consumable items for cars. The main brand field is consumables for post-warranty service of the Japanese cars. The company strategy is offering the customers the best reliability and price balance for parts. All the products are produced at dozens of plants, located in East Asia, by the order, technologies and under control of the head company, which is Masuma Auto Spare Parts Co., LTD (Tokyo, Japan)