Shaft Designs


- Solid shaft with key
- Solid shaft without key
Bearing Design


- Normal bearings
- Reinforced bearings for higher axial load capacity (option)
- Reinforced bearings for higher radial load capacity (option)
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]
P221_KX3_	4 – 15	11 – 22	3.6 – 17	4500 – 6000	7.5 – 8.5	1.5 – 1.7
P321_KX3_	3 – 30	16 – 63	5.4 – 45	4500 – 6000	5 – 7.5	2.5 – 3.7
P322_KX3_	32 – 50	65	28 – 44	4500 – 5500	5.5	4.4 – 4.5
P421_KX4_	3 – 30	40 – 120	13 – 82	4000 – 5500	5 – 7.5	5.2 – 8.4
P422_KX3_	32 – 84	84 – 120	28 – 90	4500 – 6000	5.5	9.1 – 10
P521_KX5_	3 – 30	57 – 300	23 – 229	3500 – 5000	4 – 6.5	14 – 23
P522_KX4_	32 – 210	131 – 300	44 – 225	4000 – 5500	4 – 4.5	25 – 27
P721_KX7_	3 – 30	229 – 650	64 – 496	3000 – 4000	4 – 6.5	37 – 49
P722_KX5_	32 – 150	278 – 700	98 – 487	3500 – 5000	4 – 4.5	49 – 52
P821_KX8_	3 – 30	459 – 1400	165 – 967	2000 – 3000	4 – 6.5	84 – 142
P822_KX7_	32 – 210	599 – 1600	220 – 1215	3000 – 4000	4 – 4.5	157 – 168
P922_KX8_	32 – 210	1123 – 3000	466 – 2165	2000 – 3000	4 – 4.5	313 – 327