VS-ST/STW arc-shaped shaft grounding ring

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Installation / shaft reference

Installation reference placeholder: use an installation or shaft-side reference image.

Overview

ST/STW is the arc-shaped shaft grounding ring family. It uses the same shaft-current diversion principle as solid and custom rings; the difference is mainly structure, mounting approach, and fit. The arc-shaped structure can be reviewed for larger shaft diameters such as industrial motors, typically with screw-fastened mounting.

Key features

• Arc-shaped structure

  ST/STW uses an arc-shaped form factor for applications where this structure better matches the shaft and available space.

• Same grounding function

  Like solid and custom rings, the purpose is to divert shaft current away from motor bearings.

• Larger shaft review

  The arc-shaped structure can be reviewed for larger shaft diameters and industrial motor envelopes.

• Application-based mounting

  Screw-fastened mounting is reviewed according to available space, shaft position, and installation constraints.

Specifications

Published specifications shown here are limited to currently confirmed information.

Product family

ST/STW arc-shaped shaft grounding ring.

Mounting approach

Typically reviewed for screw-fastened mounting according to the installation envelope.

Contact path

Metallized carbon fiber contact provides a low-resistance shaft-current path when correctly fitted.

Fit review

Shaft diameter, available space, and contact position are confirmed before quotation.

Typical applications

• Industrial motors with larger shaft diameters after fit review
• Motors where an arc-shaped structure fits the available access and mounting envelope
• VFD-driven fans, pumps, compressors, and general machinery
• Projects where ST/STW structure is preferred by drawing or installation constraints

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Installation notes

• Confirm shaft diameter, available axial space, and contact position before selecting the series.
• Review screw-fastened mounting conditions before quotation.
• Keep the shaft contact area clean and suitable for stable fiber contact.
• Do not select by product name alone; confirm structure and fit with drawings or photos.

FAQ

What is ST/STW?

ST/STW is Volsun's arc-shaped shaft grounding ring family.

How does ST/STW differ from RD/RDW?

The grounding purpose is the same. ST/STW is arc-shaped, while RD/RDW is solid; selection depends on shaft size, space, and mounting conditions.

When should I consider an arc-shaped ring?

Consider ST/STW when the shaft diameter or installation envelope is better suited to an arc-shaped structure.

What information do you need for a quote?

Shaft diameter, available mounting space, contact position, and motor photos or drawings are the key starting inputs.