
Housed Torque Motor
High Performance. Compact. Flexible.
The LiveDrive® LDR series has industry-leading torque density in smaller sizes along with an IP54 rating and a through hole. LDR motors are housed with features designed specifically for machine builders to increase throughput, flexibility, and design efficiency.
Welcome to the next generation of robotics and machinery. LiveDrive LDR is a unique torque motor that overcomes performance limitations of backlash, accuracy, and repeatability, found in all geared servo motors.
The LiveDrive
Advantage
- Increase machine flexibility
- Improve throughput and efficiency
- Reduce footprint
- Enable safety and digitization
- Compatible with most industry-standard servo drives
Trusted by Innovative Robot and Machine Builders Worldwide.
Simplify: Less is More
Commission a system quickly by managing fewer parts in the supply chain. Our compact motor architecture has no drive subassemblies, such as gears and belts to maintain. Fewer parts means decreased failure points.
Dynamic Performance
Improve accuracy, rigidity, repeatability, acceleration, and stopping time by fully eliminating backlash and lowering the inertia inherent in any geared drivetrain.
Improve Machine Density
Optimize space and drive more value from your machinery. With up to 50% reduction in drivetrain length, LiveDrive allows you to implement more flexible systems using less floor space.
Faster Machine Assembly
Commission your machinery more quickly by managing fewer components in the supply chain and reduce the tuning efforts needed to resolve backlash compensation.
Reduce Machine Build Costs
With fewer components needed to build or to store as spares. LiveDrive requires less paid labor for assembly and eliminates the need for leak-proof enclosures.
Open New Markets
Use machines powered by LiveDrive as a feasible replacement to more expensive, less flexible robotic and machinery solutions.

Behind the
LiveDrive LDR Motor
Product Features
- High torque density for improved performance and system lifetime
- Through hole on motor for cable routing
- Compact form factor reducing machine footprint
- High precision and dynamic response with zero backlash
- Integrated temperature sensor to help protect against overheating
- Integrated absolute encoder offering high precision for optimal motion control
- 230 VAC compatibility
- BiSS-C©, single-turn feedback options
Leverage
LiveDrive LDR in Your Industry
Industries
- Food and beverage
- Pharmaceutical
- Electronics
- Packaging
- Semiconductor
- Assembly
- Custom solutions
Specifications
LDR 1075B

Performance | Units | 1075B |
Max Continuous Torque | Nm | 10.3 |
Continuous Current | Arms | 3.27 |
Peak Torque @ 20°C | Nm | 21.1 |
Peak Current | Arms | 7.04 |
Rated Power | W | 788 |
Rated Speed at Rated Power | RPM | 820 |
Rated Torque at Rated Power | Nm | 9.17 |
No-Load Speed | RPM | 1017 |
Electrical | Units | 1075B |
Design Voltage* | VAC | 230 |
Ke at 20°C | Vrms/kRPM | 226 |
Kt at 110°C | Nm/Arms | 3.14 |
Km at 20°C | Nm/√(W) | 1.15 |
Km at 110°C | Nm/√(W) | 0.83 |
ResistanceL-L at 20°C | Ω | 7.09 |
InductanceL-L at 20°C | mH | 27.8 |
Thermal | Units | 1075B |
Thermal Resistance | °C/W | 0.585 |
Aluminum Heat Sink Dimensions | mm | 250 x 250 x 6.3 |
Storage Temperature | °C | 0 to 80 |
Operating Temperature | °C | 0 to 40 |
Maximum Winding Temperature | °C | 110 |
Physical | Units | 1075B |
Outer Diameter | mm | 101.5 |
Through Hole Diameter | mm | 15.0 |
Length | mm | 165.6 |
Rotor Inertia | kgm2 | 0.0004 |
Total Mass | kg | 5.4 |
Number of Poles | 20 |
Mechanical | Units | 1075B |
Allowable Radial Load** | N | ± 400 |
Allowable Thrust Load** | N | +250 / -175*** |
Allowable Moment Load** | Nm | ± 12.5 |
Operating Noise | dBa | <65 |
Protection Class | IP54 |
Temperature Sensors | All Models |
Sensor Type | PT1000 RTD |
Absolute Encoder | Units | All Models |
Encoder Protocol | BiSS-C®, single-turn | |
Model Code | -B1 | |
Resolution | Bits (CPR) | 18 (262144) |
Accuracy | Arcseconds | 180 |
Connector Interfaces | All Models |
Power | M23, 90-degree field rotatable, 9-pin |
Encoder | M23, 90-degree field rotatable, 12-pin |
* Motors can be operated at different voltages. Contact an applications engineer for inquiries with special voltage requirements.
** Mechanical loads are to be applied asynchronously, meaning only one load can be applied at a time. For combined mechanical loads, contact an applications engineer.
*** Thrust load sign convention: + into the motor. – away from the motor.
Specifications are preliminary and subject to change.
Specifications assume a 90°C temperature rise from 20°C ambient to a maximum winding temperature of 110°C unless otherwise listed. All performance and electrical specifications have ±15% tolerance.
LDR 1255B

Performance | Units | 1225B |
Max Continuous Torque | Nm | 6.92 |
Continuous Current | Arms | 5.10 |
Peak Torque @ 20°C | Nm | 12.3 |
Peak Current | Arms | 9.21 |
Rated Power | W | 954 |
Rated Speed at Rated Power | RPM | 1868 |
Rated Torque at Rated Power | Nm | 4.88 |
No-Load Speed | RPM | 2211 |
Electrical | Units | 1225B |
Design Voltage* | VAC | 230 |
Ke at 20°C | Vrms/kRPM | 104 |
Kt at 110°C | Nm/Arms | 1.35 |
Km at 20°C | Nm/√(W) | 0.84 |
Km at 110°C | Nm/√(W) | 0.57 |
ResistanceL-L at 20°C | Ω | 2.83 |
InductanceL-L at 20°C | mH | preliminary |
Thermal | Units | 1225B |
Thermal Resistance | °C/W | 0.602 |
Aluminum Heat Sink Dimensions | mm | 300 x 300 x 12.7 |
Storage Temperature | °C | 0 to 80 |
Operating Temperature | °C | 0 to 40 |
Maximum Winding Temperature | °C | 110 |
Physical | Units | 1225B |
Outer Diameter | mm | 122.0 |
Through Hole Diameter | mm | 25.0 |
Length | mm | 125.6 |
Rotor Inertia | kgm2 | 0.0006 |
Total Mass | kg | 4.6 |
Number of Poles | 26 |
Mechanical | Units | 1225B |
Allowable Radial Load** | N | ± 400 |
Allowable Thrust Load** | N | +300 / -250*** |
Allowable Moment Load** | Nm | ± 10 |
Operating Noise | dBa | <65 |
Protection Class | IP54 |
Temperature Sensors | All Models |
Sensor Type | PT1000 RTD |
Absolute Encoder | Units | All Models |
Encoder Protocol | BiSS-C®, single-turn | |
Model Code | -B1 | |
Resolution | Bits (CPR) | 18 (262144) |
Accuracy | Arcseconds | 180 |
Connector Interfaces | All Models |
Power | M23, 90-degree field rotatable, 9-pin |
Encoder | M23, 90-degree field rotatable, 12-pin |
* Motors can be operated at different voltages. Contact an applications engineer for inquiries with special voltage requirements.
** Mechanical loads are to be applied asynchronously, meaning only one load can be applied at a time. For combined mechanical loads, contact an applications engineer.
*** Thrust load sign convention: + into the motor. – away from the motor.
Specifications are preliminary and subject to change.
Specifications assume a 90°C temperature rise from 20°C ambient to a maximum winding temperature of 110°C unless otherwise listed. All performance and electrical specifications have ±15% tolerance.
LDR 1450B

Performance | Units | 1450B |
Max Continuous Torque | Nm | 18.6 |
Continuous Current | Arms | 4.32 |
Peak Torque @ 20°C | Nm | 46.5 |
Peak Current | Arms | 11.6 |
Rated Power | W | 946 |
Rated Speed at Rated Power | RPM | 603 |
Rated Torque at Rated Power | Nm | 15.0 |
No-Load Speed | RPM | 730 |
Electrical | Units | 1450B |
Design Voltage* | VAC | 230 |
Ke at 20°C | Vrms/kRPM | 315 |
Kt at 110°C | Nm/Arms | 4.31 |
Km at 20°C | Nm/√(W) | 1.82 |
Km at 110°C | Nm/√(W) | 1.30 |
ResistanceL-L at 20°C | Ω | 5.45 |
InductanceL-L at 20°C | mH | preliminary |
Thermal | Units | 1450B |
Thermal Resistance | °C/W | 0.435 |
Aluminum Heat Sink Dimensions | mm | 300 x 300 x 12.7 |
Storage Temperature | °C | 0 to 80 |
Operating Temperature | °C | 0 to 40 |
Maximum Winding Temperature | °C | 110 |
Physical | Units | 1450B |
Outer Diameter | mm | 142.5 |
Through Hole Diameter | mm | 30.0 |
Length | mm | 150.6 |
Rotor Inertia | kgm2 | 0.0028 |
Total Mass | kg | 8.1 |
Number of Poles | 32 |
Mechanical | Units | 1450B |
Allowable Radial Load** | N | ± 1400 |
Allowable Thrust Load** | N | +600 / -350*** |
Allowable Moment Load** | Nm | ± 45 |
Operating Noise | dBa | <65 |
Protection Class | IP54 |
Temperature Sensors | All Models |
Sensor Type | PT1000 RTD |
Absolute Encoder | Units | All Models |
Encoder Protocol | BiSS-C®, single-turn | |
Model Code | -B1 | |
Resolution | Bits (CPR) | 18 (262144) |
Accuracy | Arcseconds | 180 |
Connector Interfaces | All Models |
Power | M23, 90-degree field rotatable, 9-pin |
Encoder | M23, 90-degree field rotatable, 12-pin |
* Motors can be operated at different voltages. Contact an applications engineer for inquiries with special voltage requirements.
** Mechanical loads are to be applied asynchronously, meaning only one load can be applied at a time. For combined mechanical loads, contact an applications engineer.
*** Thrust load sign convention: + into the motor. – away from the motor.
Specifications are preliminary and subject to change.
Specifications assume a 90°C temperature rise from 20°C ambient to a maximum winding temperature of 110°C unless otherwise listed. All performance and electrical specifications have ±15% tolerance.
LDR 1650B

Performance | Units | 1650B |
Max Continuous Torque | Nm | 27.8 |
Continuous Current | Arms | 6.47 |
Peak Torque @ 20°C | Nm | 67.4 |
Peak Current | Arms | 16.6 |
Rated Power | W | 1098 |
Rated Speed at Rated Power | RPM | 579 |
Rated Torque at Rated Power | Nm | 18.1 |
No-Load Speed | RPM | 773 |
Electrical | Units | 1650B |
Design Voltage* | VAC | 230 |
Ke at 20°C | Vrms/kRPM | 298 |
Kt at 110°C | Nm/Arms | 4.30 |
Km at 20°C | Nm/√(W) | 2.47 |
Km at 110°C | Nm/√(W) | 1.90 |
ResistanceL-L at 20°C | Ω | 2.65 |
InductanceL-L at 20°C | mH | preliminary |
Thermal | Units | 1650B |
Thermal Resistance | °C/W | 0.400 |
Aluminum Heat Sink Dimensions | mm | 300 x 300 x 12.7 |
Storage Temperature | °C | 0 to 80 |
Operating Temperature | °C | 0 to 40 |
Maximum Winding Temperature | °C | 110 |
Physical | Units | 1650B |
Outer Diameter | mm | 163.0 |
Through Hole Diameter | mm | 50.0 |
Length | mm | 162.6 |
Rotor Inertia | kgm2 | 0.0061 |
Total Mass | kg | 10.6 |
Number of Poles | 38 |
Mechanical | Units | 1650B |
Allowable Radial Load** | N | ± 850 |
Allowable Thrust Load** | N | +600 / -400*** |
Allowable Moment Load** | Nm | ± 32.5 |
Operating Noise | dBa | <65 |
Protection Class | IP54 |
Temperature Sensors | All Models |
Sensor Type | PT1000 RTD |
Absolute Encoder | Units | All Models |
Encoder Protocol | BiSS-C®, single-turn | |
Model Code | -B1 | |
Resolution | Bits (CPR) | 18 (262144) |
Accuracy | Arcseconds | 180 |
Connector Interfaces | All Models |
Power | M23, 90-degree field rotatable, 9-pin |
Encoder | M23, 90-degree field rotatable, 12-pin |
* Motors can be operated at different voltages. Contact an applications engineer for inquiries with special voltage requirements.
** Mechanical loads are to be applied asynchronously, meaning only one load can be applied at a time. For combined mechanical loads, contact an applications engineer.
*** Thrust load sign convention: + into the motor. – away from the motor.
Specifications are preliminary and subject to change.
Specifications assume a 90°C temperature rise from 20°C ambient to a maximum winding temperature of 110°C unless otherwise listed. All performance and electrical specifications have ±15% tolerance.