Quattro power due to four-planet system. Highly rigid drive unit made up of an input multistage right-angle gear unit and a robust planetary output stage. Flange output shaft. Synchronous servo motor EZ. Extremely compact. Highest power per unit volume. Large torque. High dynamic.

Shaft designs
- Flange shaft
Output available on side 3 or 4.
Output Side
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.
- You can find the explanation of the mounting positions and the respective quantities of lubricant in the document Quantity of lubricant for gear units ID 441871
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]
PHQ521_K1_	22 – 309	123 – 425	45 – 317	4500 – 6000	4	70
PHQ721_K2_	22 – 382	174 – 950	61 – 722	4000 – 5500	4	136
PHQ821_K4_	22 – 381	946 – 2600	393 – 1981	3500 – 5000	3,5	400
PHQ931_K5_	44 – 580	2131 – 5760	885 – 4413	3000 – 4500	4	771
PHQ1031_K7_	45 – 591	3903 – 10000	1620 – 7492	2700 – 3800	4	1561
PHQ1131_K8_	89 – 583	7897 – 22000	3277 – 16218	2900 – 3600	4	2623
PHQ1231_K9_	144 – 2242	13636 – 43000	5659 – 32363	3100 – 3400	4	4665