Endura-Trac Standard W Series Slip Rings with Through Bores

The Endura-Trac series of slip ring assemblies were developed for a wide variety of applications and environments. The flexible design and through-bore capability of up to 3 inches, along with many other options make it ideal for a designer to incorporate into new and retrofit applications. Modular construction allows a range of signal and power combinations with power circuit up to 30 amps and signal circuits up to 5 amps. These slip ring assemblies are a quick turn solution for your application. Off-the-shelf components allow for a delivery which meets your needs.

For more information about how Moog's slip rings with through bores can fit your specific application, contact our slip ring experts.


  • Unobstructed bore sizes from 1-1/2 inches to 3 inches
  • Up to 24 signal circuits, up to 12 power circuits
  • Continuous bidirectional rotation up to 60 rpm
  • All metal dust cover
  • Flying lead wire bundle, 24 inch lead length
  • #20 AWG signal lead wire, #12 AWG power lead wire
  • Shaft, rotor, or both can rotate
  • Leadwires can exit from same or opposite ends of the rotor and stator


  • Ease of installation
  • Compatible with data bus protocols
  • Transfers power, as well as analog and digital signals
  • Replaceable brush blocks
  • 27 different combinations of signals and power circuits


  • Open frame
  • Drive adaptor for stator de-rotation
  • Longer lead lengths
  • High voltage option to 3000 V
  • Various power and signal configurations available
Endura-Trac Specifications
Operating Speed 60 RPM*
Power Circuits Up to 12 power circuits: 30 A / 600 volts
Signal Circuits Up to 24 signal circuits: 5 A / 250 volts
Terminals Power circuits - 12 AWG flying leads
Signal circuits - 20 AWG flying leads
Mounting Shaft mounting
Temperature Range -20°C to +80°C
*Please note that the operational life of the unit is dependent upon rotational speed, environment and temperature.

Typical Applications

  • Packaging machines
  • Index tables
  • Paper and film converting
  • Rotary machines
  • Machine tools
  • Automation equipment
  • Medical equipment
  • Surveillence equipment
  • Inspection equipment