EZ, EZHD synchronous servo motors
STOBER synchronous servo motors with a high power density, and with a large flange hollow shaft as EZHD.

Power density redefined: Synchronous servo motors.

Super compact, maximum torque and combined with high dynamics! This characterizes our two powerhouses: The synchronous servo motors from the EZ and EZHD series.

In contrast with comparable motors, STOBER has succeeded in increasing the power of the EZ engines enormously while noticeably reducing the overall length at the same time. In addition, all synchronous servo motors are available with a wide variety of encoders and holding brakes.

BENEFITS
Impressive servo motors with a long service life

With their EZ and EZHD synchronous servo motors, STOBER offers you brushless, permanent-magnet and electronically commutated motors with a range of different power profiles.

The stator and rotor components are designed in different versions with an energetically optimal form. The result is an extremely low torque ripple and a high power density.

System diversity for individual requirements

The design of both series is so impressive because of the diverse range of variants and interfaces.

The motors are available in different lengths and sizes and are generally used for direct attachment without coupling on all coaxial, offset helical and right-angle gear units.

EZ: The highly dynamic, compact powerhouse

The basic requirement for the very short design is to use orthocyclic linear tooth winding. This special process allows for the stator windings to be manufactured with the highest possible copper fill factor.

The result is an approximate 80% increase in the motor rating, with the motor length almost half as long without any loss in performance.

The EZ series is also energy-efficient – thanks to the various integrable encoders, the synchronous servo motors feature the ability to provide only the power actually required for an application without wasting it. In total, the EZ motors offer powerful torque, high dynamics and precise synchronization behavior.

EZHD: The brilliant variant with a flange hollow shaft

The design of the EZHD synchronous servo motor with hollow shaft, featuring an exceptionally large feed-through for energy or media, opens up a wide range of application possibilities where hardly any ready-made solution was available before.

TECHNICAL DATA
EZ series
Power density
Price category
  • Nominal torque – motor: 0.89 – 77.2 Nm
  • Stall torque – gear unit output: 0.95 – 94 Nm

Find your right fit!
EZHD series
Power density
Price category
  • Nominal torque – motor: 1.9 – 26.6 Nm
  • Stall torque – gear unit output: 2.6 – 31.1 Nm

Find your right fit!
FEATURES
EZ series
  • Shaft:
    • Solid shaft without feather key
    • Hollow shaft for direct attachment on STOBER servo gear units
  • Forced ventilation unit: For increasing torque and continuous power or at higher ambient temperatures; also as a retrofit kit
  • Brake: Optional permanent magnet holding brake on the motor’s B side
  • Power interface: Twist-on plug connectors with quick lock; optional mating connectors
  • Encoder interfaces:
    • EnDat® 3
    • EnDat® 2.1/2.2 single-turn, multi-turn
    • One Cable Solution (OCS)
    • Resolver
  • Winding protection: PTC thermistors guarantee thermal winding protection
  • Paint: RAL 9005 Jet black
  • Marks and test symbols: CE and cURus
EZHD series
  • Shaft: Continuous flange hollow shaft for conveying media
  • Brake: Optional permanent magnet holding brake on the motor’s B side
  • Power interface: Twist-on plug connectors with quick lock; optional mating connectors
  • Encoder interfaces: EnDat® 2.1 single-turn, EnDat® 2.2 single-turn, multi-turn
  • Winding protection: PTC thermistors guarantee thermal winding protection
  • Paint: RAL 9005 Jet black
  • Marks and test symbols: CE and cURus
APPLICATIONS
Pick and place
Industries and Applications

We get your visions moving – in various industries and markets worldwide.

Using a holistic approach for your specific task, we support you with precisely tailored solutions for drives and automation.

Learn more
DOCUMENTS
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Catalog Synchronous servo geared motors EZCatalog Synchronous servo geared motors EZ 114424372022 05EN25.74 MB
Catalog Rack and pinion drives with synchronous servo motorsCatalog Rack and pinion drives with synchronous servo motors 014432862022 01EN13.25 MB
Catalog Drives and automationCatalog Drives and automation 104427112021 10EN14.12 MB
Catalog STOBER compactCatalog STOBER compact 034426552021 06EN8.36 MB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Commissioning instruction EZ motors on Beckhoff AX5000Commissioning instruction EZ motors on Beckhoff AX5000 024431852022 05EN416.37 KB
Commissioning instruction EZ motors on Kollmorgen S300 S400 S600 S700Commissioning instruction EZ motors on Kollmorgen S300 S400 S600 S700 004432362021 04EN333.67 KB
Instrucciones de operacion Reductores y motorreductores PE22 PE32 PE42 PE52Instrucciones de operacion Reductores y motorreductores PE22 PE32 PE42 PE52 004432522021 03ES723.47 KB
Operating manual PE22 - PE52 gear units and geared motorsOperating manual PE22 - PE52 gear units and geared motors 004432522021 03EN713.95 KB
Commissioning instruction EZ motors on Allen-Bradley Kinetix 5500 5700 6500Commissioning instruction EZ motors on Allen-Bradley Kinetix 5500 5700 6500 004432442020 11EN380.70 KB
Commissioning instruction EZ motors on Bosch Rexroth IndraDrive C CsCommissioning instruction EZ motors on Bosch Rexroth IndraDrive C Cs 004432352020 08EN348.29 KB
Commissioning instruction EZ motors on Siemens SINAMICS S120Commissioning instruction EZ motors on Siemens SINAMICS S120 004432322020 05EN355.08 KB
Operating manual PK PKX PHK PHKX PHQK KS KL gear units and geared motorsOperating manual PK PKX PHK PHKX PHQK KS KL gear units and geared motors 004431502019 10EN1.69 MB
Operating manual P PE PH PHQ PHV gear units and geared motorsOperating manual P PE PH PHQ PHV gear units and geared motors 004431492019 10EN993.84 KB
Operating manual EZ EZHD EZHP EZS EZM synchronous servo motorsOperating manual EZ EZHD EZHP EZS EZM synchronous servo motors 014430322019 05EN441.75 KB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Connection Plan EZ_FJ on Siemens SINAMICS S120Connection Plan EZ_FJ on Siemens SINAMICS S120 044423152021 03EN189.95 KB
Connection plan EZ_GQ on Sinamics S120 DRIVE-CLiQ (via EIB 3392S)Connection plan EZ_GQ on Sinamics S120 DRIVE-CLiQ (via EIB 3392S) 014430492021 03EN182.15 KB
Connection plan EZ_BB on SI6 EnDat 3 OCSConnection plan EZ_BB on SI6 EnDat 3 OCS 014431752021 01EN172.06 KB
Connection plan EZ_BA on SC6 EnDat 3 OCSConnection plan EZ_BA on SC6 EnDat 3 OCS 014431742021 01EN172.22 KB
Connection plan EZ_FM on Beckhoff AX5000Connection plan EZ_FM on Beckhoff AX5000 034423182020 02EN197.08 KB
Connection plan EZ_GY on B&R Acopos P3 EnDat 2.2Connection plan EZ_GY on B&R Acopos P3 EnDat 2.2 004430952019 09EN183.19 KB
Connection plan EZ_FA on SDS 4000 compatibleConnection plan EZ_FA on SDS 4000 compatible 044423082019 02EN143.66 KB
Connection plan EZ_AM on SD6 Sin-CosConnection plan EZ_AM on SD6 Sin-Cos 024426742019 02EN152.12 KB
Connection plan EZ_AJ on SDS 5007Connection plan EZ_AJ on SDS 5007 024426682019 02EN159.22 KB
Connection plan EZ_AA on SDS 5000Connection plan EZ_AA on SDS 5000 044423052019 02EN172.96 KB
Connection plan EZ_AB on MDS 5000 Connection plan EZ_AB on MDS 5000 044423062019 02EN173.47 KB
Connection plan EZ_AF on MDS 5007Connection plan EZ_AF on MDS 5007 024426652019 02EN159.14 KB
Connection plan EZ_FV on B&R ACOPOSMultiConnection plan EZ_FV on B&R ACOPOSMulti 024424442019 02EN158.02 KB
Connection plan EZ_AE on SD6 Sin-CosConnection plan EZ_AE on SD6 Sin-Cos 024424512019 02EN166.02 KB
Connection plan EZ_FP on MDS / SDS 5000 compatibleConnection plan EZ_FP on MDS / SDS 5000 compatible 044423212019 02EN154.44 KB
Connection plan EZ_FG on B&R ACOPOSConnection plan EZ_FG on B&R ACOPOS 044423132019 02EN157.61 KB
Connection plan EZ_AP on SI6 digitalConnection plan EZ_AP on SI6 digital 024427712018 07EN118.51 KB
Connection plan EZ_GG on B&R Acopos EnDat 2.2 (Standard)Connection plan EZ_GG on B&R Acopos EnDat 2.2 (Standard) 024426772018 06EN128.06 KB
Connection plan EZ_GP on B&R P3 EnDat 2.2 (Standard)Connection plan EZ_GP on B&R P3 EnDat 2.2 (Standard) 014430222018 06EN120.97 KB
Connection plan EZ_GV on B&R ACOPOSMulti EnDat 2.2 OCS (Standard)Connection plan EZ_GV on B&R ACOPOSMulti EnDat 2.2 OCS (Standard) 004430922018 06EN121.54 KB
Connection plan EZ_FR on MDS _ SDS 5000 compatibleConnection plan EZ_FR on MDS _ SDS 5000 compatible 044423222017 11EN114.86 KB
Connection plan EZ_GB on MDS 5000 SDS 5000 Sin-Cos compatibleConnection plan EZ_GB on MDS 5000 SDS 5000 Sin-Cos compatible 014424472017 11EN106.64 KB
Connection plan EZ_AH on MDS 5007Connection plan EZ_AH on MDS 5007 014426662017 07EN61.80 KB
Connection plan EZ_AK on SDS 5007 Sin-CosConnection plan EZ_AK on SDS 5007 Sin-Cos 014426702017 07EN61.55 KB
Connection plan EZ_AL on SD6A02Connection plan EZ_AL on SD6A02 014426722017 07EN67.71 KB
Connection plan EZ_AC on MDS 5000_ SDS 5000 Sin-CosConnection plan EZ_AC on MDS 5000_ SDS 5000 Sin-Cos 024423072017 07EN76.48 KB
Connection plan EZ_FW on Bosch Rexroth IndraDrive CConnection plan EZ_FW on Bosch Rexroth IndraDrive C 044424452017 06EN73.02 KB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
EU declaration of conformity synchronous servo motors and synchronous geared motors EZF EZHD EZM EZSEU declaration of conformity synchronous servo motors and synchronous geared motors EZF EZHD EZM EZS 004432982021 11EN70.96 KB
UK declaration of conformity synchronous servo motors EZ ED EK and Lean motors LM incl. geared motorsUK declaration of conformity synchronous servo motors EZ ED EK and Lean motors LM incl. geared motors 004432972021 10EN71.46 KB
EU declaration of conformity synchronous servo motors and synchronous geared motors EZF EZHD EZM EZSEU declaration of conformity synchronous servo motors and synchronous geared motors EZF EZHD EZM EZS 014430902020 11EN35.89 KB
EU declaration of conformity synchronous servo motors and synchronous geared motors ED EK EZEU declaration of conformity synchronous servo motors and synchronous geared motors ED EK EZ 014430892020 11EN37.12 KB
Certificate UL - cURus synchronous servomotors EZ EZS EZM EZHD EZHPCertificate UL - cURus synchronous servomotors EZ EZS EZM EZHD EZHP 004430972016 12EN1.44 MB
Certificate Free of CCCCertificate Free of CCC zh-cn442072EN354.37 KB
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– Hubert Rauschmaier, Purchasing Manager Technical Purchasing, MEBA Metall-Bandsägemaschinen GmbH

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