Overview
The ZeroErr eRob 90 T robot joint motor is offered in CANopen or EtherCAT versions, each selectable with or without a torque sensor. Select a 50, 80, or 100 reduction ratio and a version with or without multi-loop memory.
Features
- 18 mm hollow shaft / through hole for cable and air-line routing.
- Corner mounting holes and direct-mounting design; no casing is stated as required.
- Friction damping brake; the common-parameter entry also lists a friction brake.
- Fully differential interface with strong anti-interference capability and dual anti-loosening connectors for series or parallel connection.
- IP65 rating; the common-parameter entry lists IP65*.
- Hollow-shaft routing is stated to have no bending-life impact and to help reduce joint weight and improve payload-to-weight ratio.
Specifications
Selectable configurations
| Selection | Available choices |
|---|---|
| Version | eRob 90 T (CANopen With Torque Sensor); eRob 90 T (CANopen Without Torque Sensor); eRob 90 T (EtherCAT With Torque Sensor); eRob 90 T (EtherCAT Without Torque Sensor) |
| Reduction ratio | 50; 80; 100 |
| Multi-loop memory | Without Multi-loop Memory; With Multi-loop Memory |
Technical parameters
The source technical table identifies the model / joint series as eRob90HXXT and uses the following strain wave gear ratio columns.
| Parameter | 20-50 | 20-80 | 20-100 | 20-120 |
|---|---|---|---|---|
| Model / joint series | eRob90HXXT | |||
| Strain wave gear ratio | 20-50 | 20-80 | 20-100 | 20-120 |
| Peak torque for start/stop (Nm) | 73 | 96 | 107 | 113 |
| Permissible max. average load torque (Nm) | 44 | 61 | 64 | 64 |
| Rated torque (Nm) | 33 | 44 | 52 | 52 |
| Permissible max. momentary torque (Nm) | 127 | 165 | 191 | 191 |
| Max. output rotational speed (RPM) | 60 | 37.5 | 30 | 25 |
| Motor power (W) | 300 | |||
| Power supply voltage (V) | 48 V (±10%) | |||
| Power supply note | Please read carefully: “Why can't an ordinary switching power supply be used as the power supply for the module?” and “Joint Module Manual Chapter 3 eRob Input Power Instructions”. | |||
| Output encoder resolution | 19 Bit | |||
| Repeatability / absolute accuracy (arcsec) | ±10 / ±45 arcsec | |||
| Communication bus | EtherCAT / CANopen | |||
| Outer diameter × length × through hole (mm) | 96 × 123.8 × 18 | |||
| Weight (kg) | 2.6 | |||
| Interface design | Fully differential interface, strong anti-interference; dual anti-loosening connectors, can be connected in series/parallel. | |||
| Brake | Friction damping brake | |||
| IP rating | IP65 | |||
| Strain wave gear input inertia (g·mm²) | 147025 | |||
| Strain wave gear input mass (kg) | 2.6 | |||
| Common parameters | ID: 18 mm, IP rating: IP65*, Brake: friction brake | |||
| Optional device | Communication: EtherCAT / CANopen / Modbus; Output encoder resolution: 19 Bit; Repeatability/Accuracy: ±7/±15 arcsec or ±10/±25 arcsec | |||
| EtherCAT version rotary actuator | Optional interface: RS485, Pulse/DIR, I/O, ±10 V Analog and STO | |||
| CANopen version rotary actuator | Optional interface: RS485, Pulse/DIR, I/O, ±10 V Analog and STO | |||
Downloads
EROB170I I Series EtherCAT eRob90T — 3D Model (ZIP)
EROB170I I Series EtherCAT — 3D Model (ZIP)
EROB90 T Series EtherCAT — 3D Model — STEP File (ZIP)
EROB90 T Series CANopen — 3D Model — STEP File (ZIP)
EROB90 T Series EtherCAT instalation drawing — Installation Drawing (PDF)
EROB90 T Series CANopen instalation drawing — Installation Drawing (PDF)
Applications
Application scenarios listed for this joint include humanoid robots, robotic arms, exoskeletons, quadruped robots, AGV vehicles, ARU robots, collaborative robots, medical robots, and automation equipment.
Visual Details
Product Video
Product Views

Features and Design


Interfaces and Connections

Specifications and Performance

Application Examples

