Today, as the new energy vehicle industry is growing explosively, the drive motor, as a core component of the vehicle, is facing the problem of bearing electrical corrosion caused by high-frequency shaft voltage and current. Data shows that more than 60% of motor failures under high-frequency operation are caused by bearing electrical corrosion damage.
So, why is the Volsun VS-RD series shaft grounding ring recommended?
Three major technological breakthroughs directly hit the pain points of the industry
1. Efficient conductive path design, cutting off the root cause of electrical corrosion
The VS-RD series shaft grounding ring adopts a unique coated conductive fiber technology to form a low-impedance conductive path between the bearing and the grounded housing, and guide the induced current generated by the common mode voltage to the safety circuit. It can reduce more than 90% of the current passing through the bearing and prevent electrical corrosion damage from the source.
2. Long-term stability in extreme environments, reliable protection under all working conditions
- Can work stably in a wide temperature range of -40℃~+180℃, adapting to the high temperature environment of the motor compartment;
- Excellent wear resistance, passed the 300,000-kilometer continuous operation test, far exceeding the traditional solution by more than 3 times;
- Dustproof and waterproof, no performance degradation under harsh working conditions such as high humidity and oil pollution.
The weight of a single ring is only 15g (diameter 50mm specification), but it can withstand an axial tension of ≥50N. After installation, it does not increase the motor load and adapts to the lightweight design requirements of new energy vehicles.
Quality Assurance
• Volsun shaft grounding ring has passed ISO 9001 and IATF 16949 automotive quality management system certification, and complies with GB/T 18384-2021 electric vehicle safety requirements;
• It has been supplied in batches to the top 10 domestic new energy vehicle companies, with a cumulative installation volume of more than 500,000 units, and an after-sales failure rate of <0.1%;
Widely used and applicable to a variety of motors
Passenger car drive motor: installed at the connection between the stator and the rotor shaft, to solve the problem of bearing electrocorrosion during frequent start-stop on urban roads, and improve the stability of cruising range.
Commercial vehicle drive motor: installed at the grounding end of heavy-duty motor bearings, withstand continuous current extraction under high-load conditions, and reduce the operating and maintenance costs of commercial vehicles.
Special vehicle motor: installed at key nodes of high-voltage motor systems, adapted to vibration and impact under complex road conditions, and ensure the continuous operation of special operation equipment.
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- SALES CONTACT: volsun2006@szvolsun.com