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The S, ZETA and ES series stepper motors were discontinued in 2022.

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OEM83-62-MO

OEM83-62-MO-DS34

OEM83-93-MO

OEM83-93-MO-DS34

OEM83-135-MO

OEM83-135-MO-DS34

Info

Complete list of retired motors

All custom products based on the above parts are also discontinued, for example:

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This chart shows the ES, S, and ZETA motor with shared characteristics along with the recommended HV replacement. See the notes column and associated footnotes that summarize mechanical differences

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Notes for selecting HV as replacements

NEMA23 : ES2x, S57-xx, ZETA57-xx models

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HV23x motors have the same face mounting, shaft length and shaft diameter (0.25inch)

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    S/ES/ZETA motors had tapped holes on the rear plate to mount an encoder. HV motors do not have tapped holes unless requested as a custom product.

    1. HV23x-02-10 : Double shaft with a single flat

    2. HV23x-01-10 : Single shaft with a single flat

    3. HV23x motors are not available with keyways

    4. -E or -EC models include a 1000 lines encoder. HV23x motors can be supplied with a similar 1000ppr encoder. Request through a local distributor as a custom product.  Please note the HV motors with encoder will have a 10 piece MOQ required per shipment and so in many cases if an encoder is required, converting the system to a servo solution may be the better option.

    5. HV34x-02-10 : Double shaft with a double flat

    6. HV34x-01-10 : Single shaft with a double flat

    7. HV34x-04-10 : Double shaft, round

    8. HV34x-03-10 : Single shaft, round

    9. HV34x motors are not available with keyways

    10. 10. -E or -EC models include a 1000 lines encoder. HV34x motors can be supplied with a similar 1000ppr encoder. Request via Extranet Quote system, Custom Electronics

    NEMA23 : ES2x, S57-xx, ZETA57-xx models

    Info

    • HV23x motors have the same face mounting, shaft length and shaft diameter (0.25inch)

    • S57-xx, ZETA57-xx models include a rubber boot and 9-pin connector pre-wired for a ZETA drive. ES2x and HV23 motors do not include a connector

    • S/ES/ZETA motors had tapped holes on the rear plate to mount an encoder. HV motors do not have tapped holes unless requested as a custom product.

    NEMA34 : ES3X, S83-xx, ZETA83-xx models

    Info

    • HV34x motors have the same face mounting as the S83/ES3/ZETA83 motors

    • S/ES/ZETA motors had tapped holes on the rear plate to mount an encoder. HV motors do not have tapped holes unless requested as a custom product.

    • To support higher available torque, HV34x motors have 0.5inch shaft diameter compared to 0.375 inch for ES/S/ZETA.

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    • Due to the shaft diameter difference, users should also review requirements for keys and flats. In general, HV34 motors with double flats (01,02) will have the best lead times.

    • S83-xx, ZETA83-xx models include a rubber boot and 9-pin connector pre-wired for a ZETA drive. ES3x and HV34 motors do not include a connector

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    HV34x-02-10 : Double shaft with a double flat

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    HV34x-01-10 : Single shaft with a double flat

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    HV34x-04-10 : Double shaft, round

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    HV34x-03-10 : Single shaft, round

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    HV34x motors are not available with keyways

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    ZETA Systems

    ZETA part numbers that do not include -MO indicate a motor plus ZETA4 drive system. For example, ZETA57-51 includes ZETA4 and ZETA57-51-MO. The ZETA4 drives were discontinued as of 2024.

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    Related FAQ: S/SX Motors - Replacing S/ZETA/ES series step motors with BE servo motors

    Complete List of Discontinued Parts

    ES21B-DFR10

    ZETA57-102

    OEM83-135-MO

    ES21B-DKR10-EC

    ZETA57-102-E

    OEM83-135-MO-DS34

    ES21B-DNR10

    ZETA57-102-MO

    OEM83-62-MO

    ES21B-DNR10-EC

    ZETA57-102-MO-E

    OEM83-62-MO-DS34

    ES21B-SFR10

    ZETA57-102-MO-E-F

    OEM83-93-MO

    ES21B-SNR10

    ZETA57-102-MO-F

    OEM83-93-MO-DS34

    ES22B-DFR10

    ZETA57-102-MO-S

    S57-102-MO

    ES22B-DFR10-EC

    ZETA57-102-S

    S57-102-MO-E

    ES22B-DNR10

    ZETA57-51

    S57-102-MO-F

    ES22B-DNR10-EC

    ZETA57-51-E

    S57-102-MO-S

    ES22B-SFR10

    ZETA57-51-MO

    S57-10223

    ES22B-SNR10

    ZETA57-51-MO-E

    S57-10223-NC

    ES23B-DFR10

    ZETA57-51-MO-S

    S57-51-MO

    ES23B-DFR10-EC

    ZETA57-51-S

    S57-51-MO-E

    ES23B-DNR10

    ZETA57-83

    S57-51-MO-F

    ES23B-DNR10-EC

    ZETA57-83-E

    S57-51-MO-S

    ES23B-SFR10

    ZETA57-83-MO

    S57-83-MO

    ES23B-SNR10

    ZETA57-83-MO-E

    S57-83-MO-E

    ES31B-DFR10

    ZETA57-83-MO-F

    S57-83-MO-F

    ES31B-DKR10-EC

    ZETA57-83-MO-S

    S57-83-MO-S

    ES31B-DNR10

    ZETA57-83-S

    S83-135-MO

    ES31B-DNR10-EC

    ZETA83-135

    S83-135-MO-E

    ES31B-SFR10

    ZETA83-135-E

    S83-135-MO-F

    ES31B-SKR10

    ZETA83-135-MO

    S83-135-MO-K

    ES31B-SNR10

    ZETA83-135-MO-E

    S83-135-MO-S

    ES32B-DFR10

    ZETA83-135-MO-E-K

    S83-135-MO-S-F

    ES32B-DFR10-EC

    ZETA83-135-MO-F

    S83-135-MO-S-K

    ES32B-DKR10

    ZETA83-135-MO-K

    S83-62-MO

    ES32B-DKR10-EC

    ZETA83-135-MO-S

    S83-62-MO-E

    ES32B-DNR10

    ZETA83-135-S

    S83-62-MO-S

    ES32B-DNR10-EC

    ZETA83-62

    S83-93-MO

    ES32B-SFR10

    ZETA83-62-E

    S83-93-MO-E

    ES32B-SKR10

    ZETA83-62-MO

    S83-93-MO-F

    ES32B-SNR10

    ZETA83-62-MO-E

    S83-93-MO-K

    ES33B-DFR10

    ZETA83-62-MO-S

    S83-93-MO-S

    ES33B-DFR10-EC

    ZETA83-62-S

    S83-9333

    ES33B-DKR10

    ZETA83-93

    ES33B-DKR10-EC

    ZETA83-93-E

    ES33B-DNR10

    ZETA83-93-MO

    ES33B-DNR10-EC

    ZETA83-93-MO-E

    ES33B-SFR10

    ZETA83-93-MO-E-K

    ES33B-SKR10

    ZETA83-93-MO-F

    ES33B-SNR10

    ZETA83-93-MO-K