ST/STW vs RD/RDW: Which Shaft Grounding Ring Structure?
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Compare arc-shaped ST/STW and solid RD/RDW shaft grounding rings by structure, mounting, and application fit.
ST/STW is Volsun's arc-shaped shaft grounding ring family. It is reviewed where the shaft diameter, mounting envelope, or access conditions are better suited to an arc-shaped structure.
RD/RDW is Volsun's solid shaft grounding ring family. It is reviewed where the shaft and mounting envelope support a solid ring structure.
Both families serve the same core purpose: divert shaft current away from bearings through a controlled low-resistance path.
Selection should be based on shaft diameter, available space, contact position, and mounting method. Non-catalog geometry may require a custom review.
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