With the rapid development of industries like new energy vehicles and rail transit, motors are continuously upgrading to higher voltages and higher frequencies. However, a growing problem is bearing electrocorrosion, which quietly erodes core motor components, significantly shortening equipment life and even causing unplanned downtime. To address this industry pain point, Volsun has developed and launched the VS-RD series of shaft grounding rings (conductive rings). Leveraging innovative materials and technologies, they effectively conduct shaft current, providing a more reliable and easy-to-install electrocorrosion protection solution for various motor equipment.
The VS-RD shaft grounding ring's most striking feature is its excellent low-resistance conductivity. During motor operation, shaft current accumulation can easily generate sparks and damage bearings. With a static contact resistance of less than 1Ω and a stable dynamic resistance below 10Ω (under DC conditions), this product rapidly conducts shaft current, preventing charge accumulation and fundamentally eliminating electrocorrosion. This not only improves motor reliability but also significantly extends bearing life.
In addition to its excellent electrical conductivity, the VS-RD shaft grounding ring also excels in durability. Its wear and weather resistance, in particular, make it suitable for a wide range of complex operating conditions. For example, after 300,000 kilometers of operation in an oil-cooled environment, wear remains below 0.2mm. Even in hot, humid, and salt-fog coastal or industrial areas, its fiber material shows no noticeable damage, meeting national salt spray test standards (GB/T 42284.4-2022). This makes it suitable not only for new energy vehicle drive motors but also for applications such as rail transit and wind power equipment, which demand extreme material performance.
Easy installation is also a key feature of this product. Its modular and lightweight design allows for a minimum thickness of only 4.5mm, making it ideal for use in the limited space within the motor compartment of new energy vehicles. The series also includes various types, including conductive fan rings and new-structure shaft grounding rings, supporting a wide range of shaft diameters from 10 to 180mm. Users can choose from various mounting methods, such as interference fit or screw fastening, to meet their specific needs, significantly reducing assembly requirements and maintenance costs.
As a national high-tech enterprise, Volsun not only holds IATF16949 and ISO certifications, but also has a joint R&D center with the Chinese Academy of Sciences to continuously advance material and technology iterations. The company provides one-stop services from product selection to protection solution design, offering professional consulting and sample services.
In short, the Volsun VS-RD shaft grounding ring, through its solid material technology and user-friendly design, provides long-lasting and stable protection for motor bearings, truly becoming a "shield" that protects drive motors from electrical corrosion.
- CONTACT TEL: +86-512-66386808
- SALES CONTACT: volsun2006@szvolsun.com