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Evonik Utilizes VESTAKEEP Gears in Mass Balance Transmission

For the first time, VESTAKEEP PEEK plastic gears are being used in a mass-balance transmission.

Evonik has successfully developed PEEK molding compound (polyetheretherketone) with very good tribological properties where plastic gears made with VESTAKEEP with high durability for use in the harsh environment of an internal combustion engine are replacing metal gears.

Evonik Gears For the first time, VESTAKEEP PEEK plastic gears are being used in a mass-balance transmission.

With the use of its gear testing rig, Evonik supports development activities during close coordination with the customer. “We can generate specific material data that can be used to optimally design the gears made of our high-performance plastics,” says Philipp Kilian, Head of Tribology Development High-Performance Polymers at Evonik, describing the advantages. “We can test in a temperature range from -20 °C to 260 °C, both in dry and lubricated condition.”

Steffen Kanzler, who is responsible for VESTAKEEP for Transportation at Evonik, considers the use of high-performance plastic under the difficult conditions of a mass-balance transmission to be another step in the material’s success story: “We are demonstrating the extraordinary properties of VESTAKEEP® here. These are also relevant for other challenging applications, where we are the suitable development partner for new projects. Our customers receive qualified support from the material selection and computer-assisted simulation up to the technical implementation by our application technology team.”

The series component is manufactured by IMS Gear SE & Co KGaA and is used by Mercedes-Benz AG in various models.

Mass balancers ensure the smooth running of an internal combustion engine by reducing the vibrations caused by the pistons on surrounding structures.

With VESTAKEEP PEEK 5000 G, Evonik offers a suitable material with high resistance and high performance to replace these metal gears. In addition to the required vibration damping, plastic gears offer an additional advantage of high resistance to mechanical and tribological stress.

Compared to conventional metal gears, they have lower friction losses and are significantly quieter. The lower mass moment of inertia saves energy. Gears made of VESTAKEEP PEEK are manufactured cost-efficiently by injection molding and eliminate the extensive reworking that was previously necessary when using metal.

Thanks to their high temperature, chemical resistance and high ductility, the high-performance polymers of the VESTAKEEP brand can replace metal components, for example, to enable sophisticated lightweight construction applications.

Evonik has more than 50 years of experience in the development and production of high-performance plastics.

The extensive product portfolio includes solutions for almost all industrial applications.

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Aishwarya Saxena

A book geek, with creative mind, an electronics degree, and zealous for writing.Creativity is the one thing in her opinion which drove her to enter into editing field. Allured towards south Indian cuisine and culture, love to discover new cultures and their customs. Relishes in discovering new music genres.

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