NSK has recently developed NSK S1, the world's first 100% bioplastic retaining piece for ball screws. This recent innovation is part of the company’s drive to increase the use of bioplastics, which are more effective in reducing carbon emissions in comparison to conventional fossil fuel-based plastics.
Ball screws are highly efficient at transmitting force and converting motion and are widely used in many kinds of industrial machinery. In the process of fulfilling their function of converting motion and transmitting force, ball screws achieve significant energy savings. In recent years, processes such as injection moulding machines and servo presses are switching from hydraulic to electric drive systems using servomotors and ball screws in order to reduce power consumption. Considering such industry trends, demand for ball screws is expected to continue increasing.
Conventionally, polymer retaining pieces are placed between the balls in ball screws to prevent the balls from colliding with each other and improve the durability of the ball screw. By using bioplastic material, this product offers the additional benefit of contributing towards carbon neutrality.
NSK states S1 is the world’s first 100% bioplastic retaining piece for ball screws. The company also comments that the use of NSK Digital Twin technology during the development process means the bioplastic retaining piece offers the same level of performance as a conventional retaining piece.
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