Spring stiffness

X-Series and R-Series Actuators
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hebi_newbie
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Spring stiffness

Post by hebi_newbie » Tue Dec 31, 2019 1:44 pm

What is the spring stiffness / compliance characteristics of the actuators?
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hebi_guru
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Re: Spring stiffness

Post by hebi_guru » Tue Dec 31, 2019 3:19 pm

The stiffness of the actuator depend on the model and hardware revision.

X-Series Actuators prior to early 2019
The stiffness is approximately linear and ranges from about 70 Nm/rad to about 170 Nm/rad. Details are provided in the hardware documentation. This applies to hardware revision A9V/B9V/C9V of the X5, and A12V/B12V of the X8.

X-Series Actuators after early 2019, all R-Series Actuators
The stiffness of these actuators are non-linear where the actuator is more compliant around zero load and stiffer at higher loads. Stiffnesses vary depending on the actuator model and range from about 30-70 Nm/rad around zero load and increases to about 300-1000 Nm/rad at full load. Each actuator is individually calibrated before shipping.

If you have more questions, please contact us at support@hebirobotics.com.
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