DD Motor


DD Motor ZMD-1010 ZMD-1007 ZMD-1003

Realizing outstanding high speed and
precision performances thanks to its small and compact design


Outer rotor mechanism
The outer diameter's compact design enables to drive directly the roller, making it suitable for indexing rotation
High-resistance bearings
Simple and rigid structure for a higher load resistance
Hollow diameter φ50mm
Wiring and piping can be easily stored in the hollow space of the motor, reducing the istallation space.
Low price
Model's size reduction leads to a more competitive price matching today's markets needs
Short lead time/ quick delivery
The reduction of the components and a smarter stock arrangement critically reduce the production lead time
What is a Direct Drive Motor?

A DD Motor can transmit the torque of the electric motor directly to the driving objects,
without the use of any reductions such as belts, pulleys or reduction drives.

  • | High efficiency
  • | Low noise
  • | Outstandig precision
  • | High reliability
  • | Maintenance-free

↑ Page Top

Application examples

The installation of the DD Motor enables more efficient operations and it doesn't require any maintenance

Roller-drive application e.g.

conventional products

DD Motor

Thanks to the outer motor, it's possible to build the motor inside the roller, saving space
I works smoothly, avoiding uneven operations or movements

Other possible applications

  • ・Printing equipment
  • ・Coating machines
  • ・Film-manufacturing machinery
  • ・Roll-feeders
Indexing rotation application e.g.

Conventional products

DD Motor

Space-saving design for a more compac structure
As no reduction device is needed, it's possibile to avoid complex installations, improving its efficiency and reliability with no back-lash

Other possible applications

  • ・Semiconductor making equipment
  • ・Devices for manufacturing liquid crystal display panels
  • ・Assembling robots
  • ・All kind of indexing applications

↑ Page Top

System configuration

Optional accessories
  • ・RD converter
  • ・Converter cable
  • ・Servo amplifier (driver)
  • ・External regenerative resistor
  • ・Resolver cable
  • ・Interface connector-kit
  • ・Power cable

※PC cable (USB mini-B cable) is not provided.

↑ Page Top

Standard specifications

Model ZMD-1003 ZMD-1007 ZMD-1010
Maximum torque(N・m) 30 65 100
Continuos torque(N・m) 10 21 33
Maximum current(Arms) 3.5 7.1 8.8
Rated current(Arms) 1.2 2.4 2.9
Maximum rotation speed(S-1) 5 4.5 4
Sensor resolution(ppr) 1310720 ※1
Repeatability positioning precision(Second) ±3
Allowed axial load(N) 3500 ※2
Allowed moment load(N・m) 150 ※3
Axial rigidity(mm/N) 2×10-6 ※4
Moment rigidity(rad/N・m) 2×10-6
Rotor inertia(kg・m2) 0.014 0.017 0.020
Axial run-out/side run-out accuracy(μm) 70 ※5
Weight(kg) 8.2 11.5 14.5

・If using radial load, axial load and moment load at the same time, please contact us.

・This motor can be used with any type of servo driver. However, when using a servo-driver that differs from the one suggested, please be sure to use it below the rated current value.

※1 With the use of RD1416SPW (RD converter)

※2 Horizontal installation

※3 Horizontal installation

※4 By using cross-roller bearings

※5 As option, it is also possible to improve the accuracy of surface deflection.
For further details, please contact us.

↑ Page Top

Operating environment

Ambient temperature operation:0~ 40℃、storage:-15 ~ +70℃
humidity 80% RH or less, no condensation
environment keep away from corrosive gas or dust(indoor use)
vibration/impact 9.8m/S2 or less
altitude 1000m or less

↑ Page Top

Torque perfomance

↑ Page Top

Dimensional outline drawing

Model ZMD-1003 ZMD-1007 ZMD-1010
External diameter of the motor(mm) φ150
Total length(L) (mm) 113 143 173