DS100 Series Direct Drive Servo Motors DS145 Series Direct Drive Servo Motors DS175 Series Direct Drive Servo Motors Standard Direct Drive Motor


Prime Drives offers both standard and custom solutions. Our Standard Direct Drive Servo Motors include:


Prime Drives offers engineering solutions to your Direct Drive Servo Motor Application. We customize the motor to fit your application by:

  • Offering a wide variety of winding options
    • From 30 to 400 volt Ke winding options
  • Providing various feedback options such as:
    • High and Low resolution encoders
    • Resolvers
    • Sine-cosine encoders
    • Hall effect sensors
    • Absolute Encoders
  • We offer a variety of bearing options: Not all direct drive Applications require a large capacity, low speed crossed roller bearing. Other options include:
    • 4 point contact bearings
    • Thin section bearings
    • Duplex Pair bearings
  • We will modify the housing of the Motor to fit your Application. Modifications nclude:
    • Increasing the thru-hole diameter
    • Eliminating the thru hole
    • Modifying the top plate which to include the interface plate thus reducing weight, size and eliminating additional parts.
Custom angled direct drive motor housing Custom housing for Direct Drive Motor
Integrated top moving plate in Direct Drive Motor Custom housing in a short finned Direct Drive Servo motor
Pancake Direct Drive Servo Motor Custom winding for Direct Drive Servo Motor
Flat Direct Drive Servo motor Direct Drive motor with custom large thru hole

Capabilities of Standard Direct Drive Motors:

The standard DS series of Direct Drive Servo Motors offers a small, compact servo solution in numerous stack heights to match your torque, speed, inertia and accuracy requirements. Our cut-core or segmented stator technology provides the maximum amount of torque in a thermally stable environment in a compact package size.

The standard Direct Drive Servo Motors incorporate a precision circular cross roller bearing which ensures smooth movement and excellent axial and moment loading characteristics. Our engineering team also provide designs which incorporate thin section and 4-point contact bearings for applications which need higher speeds with less stringent axial and moment loading. Our brushless Direct Drive Servo Motors contain high pole count rotor-stator sets which virtually eliminate cogging producing extremely smooth operation for your direct drive rotary servo application.

Our design produces excellent torque to size ratio by using rare-earth magnets and thermally conductive epoxy in the stator assembly allows for higher operating temperatures which eliminates concerns in many direct drive rotary applications.

Our high torque to inertia ratio also provides excellent acceleration and deceleration characteristics for demanding direct drive rotary servo table applications.

Our very low electrical time constants result in a fast responding direct drive rotary servo solution. Prime Drives offers superior technology and customer options in solving most applications with direct drive servo motors.

When your application requires a brushless direct drive servo motor, look to Prime Drives to deliver a solution which fits your application.

System Features of Standard DS Series Direct Drive Servo Motors:

  • Absolute Accuracy as low as +/- 15 arc-sec
  • Resolution up to .40 arc-sec/count
  • Repeatability as low as +/- .5 arc-sec
  • Power up to 280 Watts
  • Speeds up to 3,670 RPM
  • Peak torque up to 10N-m
  • Continuous torque up to 1.7 N-m
  • Height as low as 80mm
  • Back EMF constants from 30 VDC/Krpm to 240 VDC/Krpm
  • Digital or absolute encoder, resolver, hall effect feedback or 1Vpp Sin/Cos
  • Mechanical run out less than 10 microns
  • 16 motor poles provide superior low speed performance
  • Flexibility to adapt our design to your system requirement

If you have any questions about how our standard or custom Direct Drive Servo Motors can fit your application call us at 775-333-5984.