Versatile angular gear unit. Three backlash versions. For highest requirements. Hollow or solid shaft. Synchronous servo motor EZ. Extremely compact. Highest power per unit volume. Large torque. High dynamic.

Shaft design

- Solid shaft with key
- Solid shaft without key (K1 - K4, starting at K5 on request)
- Solid shaft on both sides
- Hollow shaft with keyway
- Hollow shaft with shrink ring
Housing Designs

- Pitch circle diameter
- Round flange
- Foot + pitch circle diameter
- Foot + round flange
- Pitch circle diameter + torque arm bracket
- Foot + pitch circle diameter + torque arm bracket
Backlash

- Standard
- Class II
- Class I
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

- Mineral lubricant CLP ISO VG 220
- Option: Synthetic lubricant CLP HC ISO VG 220

Under normal operating conditions no lubricant change is required for gear unit size K1 to K4 (lubricated for life). 
We recommend a change of lubricant for gear unit size K5 to K10 after approx. 10,000 hours of operation.
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]
K102	4 – 56	23 – 135	8,5 – 102	4500 – 6000	6 – 12	6,8
K202	4 – 69	33 – 220	12 – 170	4000 – 5500	1,5 – 10	11
K203	39 – 181	189 – 217	63 – 167	5500	2,5 – 10	11
K302	4 – 69	104 – 385	43 – 290	3800 – 5000	1,5 – 10	16
K303	33 – 181	235 – 379	79 – 291	5000	2,5 – 10	16
K402	4 – 69	179 – 600	74 – 456	3500 – 5000	1,5 – 10	31
K403	32 – 218	317 – 591	107 – 414	5000	2,5 – 10	31
K513	7,3 – 97	466 – 1000	193 – 766	3000 – 4500	2 – 10	50
K514	85 – 168	1000	376 – 744	4500	3 – 10	50
K613	7,3 – 95	662 – 1600	236 – 1228	2900 – 4000	2 – 10	83
K614	111 – 266	1448 – 1600	492 – 1176	4000	3 – 10	83
K713	7,6 – 99	1120 – 2600	427 – 1872	2700 – 3800	2 – 10	126
K714	89 – 381	1626 – 2600	606 – 1984	3800	3 – 10	126
K813	15 – 97	1371 – 4650	569 – 3304	2900 – 3600	2 – 10	196
K814	67 – 311	2156 – 4650	895 – 3472	3600	3 – 10	196
K913	38 – 95	4678 – 7700	1736 – 4740	3400	5 – 10	379
K914	92 – 374	2367 – 7700	982 – 5619	3400	5 – 10	379
K1014	149 – 290	10624 – 13200	5198 – 10136	3200	5 – 10	725