
Meet the robust IR-F 85 inrunner motor, suitable for a wide range of applications. The torque motor series is available in different stack heights with continuous torque values from 1.3Nm to 6.4Nm and peak torques up to 7.9Nm.
The IR-F series is designed for heavy industrial applications that require reliability and high performance.
Types
High Torque
Values
Durable and
Sustainable
High
Precision
Energy
Efficient
About the IR-F 85 Inrunner Motors
The IR-F 85 brushless inrunner motors combine the latest direct drive technology with a robust and compact design, making them ideal for industrial applications that require precision and reliability.
Whether it is the IR-F 85-25, IR-F 85-50 or IR-F 85-75, these motors offer unparalleled performance for demanding tasks.
Smooth and precise operation
These inrunner torque motors provide extremely smooth and precise operation, which is crucial for advanced automation systems and rugged industrial machines. The excellent thermal properties and low cogging ensure that these engines can perform under the toughest conditions without sacrificing efficiency.
The IR-F 85 motors are equipped with high-quality magnets. This makes them not only powerful but also durable and suitable for long-term use in harsh environments.

Details Inrunner Motor
IR-F 85-25
Continuous torque (*) | Between 1.3 Nm and 1.9 Nm |
Peak torque (**) | 3.5 Nm |
Pole pairs | 7 |
Rotor Inertia | 99.5 kg.mm2 |
Motor type Max DC bus Voltage | 60 VDC |
IR-F 85-50
Continuous torque (*) | Between 2.7 Nm and 4 Nm |
Peak torque (**) | 5.3 Nm |
Pole pairs | 7 |
Rotor Inertia | 199 kg.mm2 |
Motor type Max DC bus Voltage | 60 VDC |
IR-F 85-75
Continuous torque (*) | Between 4.3 Nm and 6.4 Nm |
Peak torque (**) | 7.9 Nm |
Pole pairs | 7 |
Rotor Inertia | 298 kg.mm2 |
Motor type Max DC bus Voltage | 60 VDC |
(*) @ 140 °C coil temp / (**) 5 K/sec temp increase rate
Also available: Outrunner Torque Motors
We also offer Outrunner Torque Motors for applications requiring higher torque at lower rotational speeds. These motors deliver exceptional performance by positioning the rotor outside the stator.
This design allows for increased torque density, making outrunners ideal for applications demanding significant torque in compact spaces. Outrunner motors are particularly suited for industries where low-speed operation with high torque is critical.
Our MI-F outrunner torque motors series come in four build volumes (40 mm, 110 mm, 250 mm, and 485 mm), each available in three heights (25 mm, 50 mm, and 75 mm), with continues torque spanning from 0.97 Nm to 1207 Nm.
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the support team
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