Robot Arm Hollow Brushless Motor Robot Joint

This eRob series robot joint modules is a standardized joint module product based on our own servo drives and absolute encoders based on years of experience in serving customers, making robot development easier, faster, safer.

This eRob series robot joint modules include eRob70, eRob80, eRob90, eRob110, eRob142, etc., with exquisite design and compact structure. The compact size includes servo drivers, motor side absolute value encoder, output side absolute value encoder, and frameless torque motors, brakes, precision harmonic reducers and other main components, which save customers hundreds of mechanical and electronic components selection, design, procurement, assembly labor and time costs.

eRob701 has an outer diameter of only 70mm, a height of 81mm and a through-hole of 18mm.980g super light weight, torque deadweight ratio up to 50N-m/kg.

This series robot joint module includes Eight core components as below, motor end absolute value encoder, multi-turn absolute encoder at output, Frameless Torque Motor, precise harmonic reducer,Torque sensor, friction brake retainer and DC drive temperature sensor.

The outer diameter is only 70mm, the OD of middle hole of which lines can pass through is 18mm

0.98kg ultra light weight

Reduce joint weight

Effectively ensure a reasonable weight ratio of the robot.

This series robot joint modules support multiple communication protocols.

With EtherCAT, CANopen communication, open position loop, speed loop, current loop data and PID real-time adjustment, suitable for dynamic load and variable inertia robot applications.

This series robot joint modules built-in dual absolute value encoder, full closed loop control

19-bit absolute encoder at the output, repeat positioning accuracy up to ±10 arc seconds, absolute positioning accuracy up to ±45 arc seconds, single-turn and multi-turn power-off positions can be memorized, fully closed-loop control, no wear accuracy.

eRob joint onsite accuracy test

This series robot joint modules adopt friction brake retainer, no shaking when stop, no shaking when start. It can start at zero speed with full load.

 Parameter of eRob Series Robot Joint Module

This series Robot Joint Modules are mainly used for Collaborative robot, medical robot and other automation equipment.

 Shipping list of this series robot joint modules include

1pcs joint module,

2pcs 48V power connector(2pin),

2pcs CANopen connector &wiring,

2pcs EtherCAT connector&wiring(4 pin) and

1pcs I/O connector &wiring(12pin).