Shaft Designs


Flange shaft
Bearing Design


Pretensioned angular contact bearings at the output in an O-arrangement, ideally suited for helical geared rack and pinion drive.
Mounting Positions


- Any mounting position.
Lubricants and Maintenance


- Synthetic lubricant CLP HC ISO VG 150
- Lubricated for life
- Maintenance-free
Paint Finish


- Housing and connector black RAL 9005
- Motor cover b-side magenta RAL 4010
Synchronous Servo Motor EZ


- Extremely compact. 
- Highest power per unit volume. 
- Large torque. 
- High dynamic.
Synchronous Servo Motor EZ
External Fan


- According to DIN EN 60034-6, IC416
- To increase torque and continuous performance.
- In case of higher surrounding temperatures.
- Also available as a retrofit kit.
External Fan
Motor Brake


Optionally the motor b-side can be equipped with a permanent magnet holding brake.
EZ Brake
Encoder


- Optical or inductive measuring principle
- High system accuracy with up to 23 bits resolution 
- Up to 4096 recordable resolutions in multiturn version
- Electronic nameplate ensures fast and easy commissioning
- Compatible with STOBER drive controllers and drive controllers of many third-party manufacturers
Resolver
- High temperature resistance
- High vibration strength and shock resistance
Power and Encoder Interface


- Rotating plug connectors with quick lock.
- Option: Supplied with mating connectors.
EZ Connection Method
Encoder One Cable Solution (OCS)


HIPERFACE DSL One Cable Solution (OCS)
- Significantly reduced wiring effort by eliminating the encoder cable
- Significantly reduced space requirements by eliminating the encoder plug connector
- High system accuracy with up to 20 bits resolution 
- Up to 4096 recordable resolutions in multiturn version
- Electronic nameplate ensures fast and easy commissioning
- Additional information transferred with the position value
Power and Encoder Interface One Cable Solution (OCS)


- Rotating plug connector with quick lock (connection lines between the encoder and drive controller are routed along in the motor's power cable).
- Option: Supplied with mating connector.
EZ Connection Method (OCS)
Winding Protection


PTC thermistors are installed in STOBER synchronous servo motors as a configuration feature to implement thermal winding protection. This makes it possible for the motor to exceed the maximum permitted winding temperature with the appropriate devices turned off.
Drive Controller Recommendation


- POSIDRIVE MDS 5000 with power range 0.75 to 45 kW
- POSIDYN SDS 5000 with power range 0.75 to 45 kW
- SD6 with power range 0.75 kW to 45 kW
- SI6 with power range 0.75 kW to 25.9 kW
For further information see Drive Controllers

Type	Ratio	Max. perm. acceleration torque [Nm]	Stall torque on the gear unit output [Nm]	Max. perm. input speed in cyclic operation [1/min]	Backlash [arcmin]	Torsional stiffness [Nm/arcmin]
PHA321	5 – 10	24 – 65	8.1 – 41	6000	2	11 – 16
PHA322	20 – 50	52 – 65	18 – 44	8000	2	14 – 15
PHA421	4 – 10	41 – 130	17 – 84	5000 – 6000	1	21 – 39
PHA422	16 – 70	65 – 130	22 – 97	6500 – 8000	1	24 – 29
PHA521	4 – 10	77 – 320	38 – 201	5000 – 6000	1	55 – 98
PHA522	16 – 70	126 – 320	52 – 246	6000 – 7000	1	58 – 71
PHA721	4 – 10	192 – 700	80 – 451	4000 – 5000	1	117 – 185
PHA722	16 – 70	298 – 700	108 – 532	5000 – 6500	1	126 – 150
PHA821	4 – 10	557 – 1378	254 – 902	3500 – 4000	1	317 – 634
PHA822	16 – 100	521 – 2000	273 – 1543	4500 – 6000	1	305 – 484
PHA932	12 – 60	1618 – 5000	744 – 2977	3000 – 4500	1	1057 – 1240