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Shaft Grounding Rings
Prevent motor downtime by protecting bearings from stray currents generated by variable frequency drives. These grounding rings create a path for stray currents, so they won't damage bearing surfaces. Use them on AC motors.
One-piece rings slide on from the end of the shaft. Two-piece rings simplify installation when motors are connected to equipment.
Use epoxies to install rings without having to drill or tap into motor frames.
Apply shaft coatings to motor shafts before installing the rings to improve the conductivity of the steel shaft surface that touches the grounding ring.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | For Motor NEMA Frame Size | Mounting Hardware Included | Includes | Each | |
One Piece | |||||
|---|---|---|---|---|---|
Aluminum  | |||||
| 5/8" | 56 | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 0000000 |
| 7/8" | 56HZ, 143T, 145T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 1 1/8" | 182T, 184T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 1 3/8" | 213T, 215T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 1 5/8" | 254T, 256T, 284TS, 286TS | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 1 7/8" | 284T, 286T, 324TS, 326TS, 364TS, 365TS | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 2 1/8" | 324T, 326T, 404TS, 405TS | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 2 3/8" | 364T, 365T, 444TS, 445TS, 447TS, 449TS | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 2 7/8" | 404T, 405T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 3 3/8" | 444T, 445T, 447T, 449T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
Two Piece | |||||
Aluminum | |||||
| 5/8" | 56 | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 7/8" | 56HZ, 143T, 145T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 1 1/8" | 182T, 184T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 1 3/8" | 213T, 215T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 1 5/8" | 254T, 256T, 284TS, 286TS | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 1 7/8" | 284T, 286T, 324TS, 326TS, 364TS, 365TS | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 2 1/8" | 324T, 326T, 404TS, 405TS | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 2 3/8" | 364T, 365T, 444TS, 445TS, 447TS, 449TS | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 2 7/8" | 404T, 405T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
| 3 3/8" | 444T, 445T, 447T, 449T | Yes | 16 Brackets (4 each of 4 Common Styles) | 0000000 | 000000 |
Container | ||||||
|---|---|---|---|---|---|---|
| Size, fl. oz. | Type | Begins to Harden, min. | Reaches Full Strength, hrs. | Mix Ratio | Each | |
| 0.5 | Syringe | 10 | 24 | 1:1 | 0000000 | 0000000 |
Container | Dry Time | |||||||
|---|---|---|---|---|---|---|---|---|
| Size, fl. oz. | Type | Touch, min. | Overall, hrs. | Max. Temp., °F | Application Temp. Range, °F | Color | Each | |
| 0.5 | Bottle | 30 | 24 | 330° | 72° to 300° | Gray | 0000000 | 0000000 |
Grounding Clamps for Medium-Wall (IMC) and Thick-Wall (Rigid) Steel Conduit
Ground conduit by running a ground wire through the attached lug. The included grommet protects wire and cable from abrasion when being pulled. Use with medium-wall (IMC) and thick-wall (rigid) steel conduit.
Grounding clamps with hinge open for quick installation around conduit and secure with a screw.
For technical drawings and 3-D models, click on a part number.
| Conduit Trade Size | Pipe Size | Thread Type | Gender | Material | Compatible With | Specifications Met | Each | |
Grounding Clamp | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/2 | 1/2 | NPSM | Female | Zinc | Aluminum Wire, Copper Wire | UL Listed, ANSI/NEMA FB 1 | 00000000 | 000000 |
Grounding Clamp with Hinge | ||||||||
| 3/4 | __ | __ | Female | Zinc | Aluminum Wire, Copper Wire | UL Listed, ANSI/NEMA FB 1 | 00000000 | 00000 |
| 1 | __ | __ | Female | Zinc | Aluminum Wire, Copper Wire | UL Listed, ANSI/NEMA FB 1 | 00000000 | 00000 |
| 1 1/4 | __ | __ | Female | Zinc | Aluminum Wire, Copper Wire | UL Listed, ANSI/NEMA FB 1 | 00000000 | 00000 |
| 1 1/2 | __ | __ | Female | Zinc | Aluminum Wire, Copper Wire | UL Listed, ANSI/NEMA FB 1 | 00000000 | 00000 |
| 2 | __ | __ | Female | Zinc | Aluminum Wire, Copper Wire | UL Listed, ANSI/NEMA FB 1 | 00000000 | 00000 |