How Effectively Solve The Problem of Electrocorrosion in Motor Bearings?

Electrocorrosion is a common problem currently faced in new energy vehicle electric drives, wind turbine generators, rail transit, marine propulsion, and industrial motors. With new energy vehicle electric drives advancing to 800V, the widespread use of silicon carbide controllers, and motor speeds exceeding 20,000 rpm, traditional suppression and mitigation methods are no longer able to meet the evolving needs of the industry. So, how can we address electrocorrosion in motor bearings? 

Shaft grounding rings are the answer!

Volsun's shaft grounding rings are primarily composed of conductive fibers and a metal body, offering lightweight, low resistance, and physically stable current transmission. Our cantilever design allows for a soft, conforming fiber brush tip that conforms to the shaft surface, resulting in high conductivity and wear resistance, as well as low friction and noise during operation.

To better meet market demand, Volsun continuously updates its products while ensuring solutions to electrocorrosion issues. Currently, our shaft grounding rings are in their third generation. What are the key breakthroughs in this third-generation shaft grounding ring? The most critical upgrade is the prefabricated fiber module, which is then laser-welded to the metal ring for high-precision and high-strength bonding. This makes the third-generation shaft grounding ring even more competitive:

• First, we have centralized optimization and rigorous control over key materials and core processes for Volsun metal-based carbon fiber.

• Second, the ring structure is simplified, with fewer parts and streamlined processes, significantly reducing manual pre-assembly time.

• Third, overall costs have been significantly reduced, exceeding industry standards by over 20%.

• Fourth, modularization: While maintaining the reliability of previous generations, we have enhanced automated production capabilities to better meet the needs of customers with varying batch sizes.

Up to now, we have established in-depth partnerships with over 70% of mainstream domestic automakers, encompassing both traditional brands and emerging car manufacturers. We are proud to maintain a "zero quality issue" record for all our delivered conductive rings, demonstrating their proven reliability and durability.

If your motor is also experiencing electrical corrosion issues with bearings, please don't hesitate to contact us for a customized design and solution!