Mini-through Hole Slip Ring For Train Ultrasonic Monitoring Device

● Inner hole 5mm
● Special cables for ultrasonic
● One side wires, one side PCB
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Description

Mini-through hole slip ring with inner hole 5mm is specially designed for Train ultrasonic monitoring device, and A rotating ultrasonic monitoring system is often used to scan all around the axle or wheel of train. The mini through-hole slip ring is installed inside the rotating fixture to transfer electrical signals and power between The rotating ultrasonic sensors and.

The stationary data processing unit.

 

 

Product Picture

 

3

 

Mechanical Parameters

 

Working speed

350rpm

Operating temperature

-20℃~ +60℃

Contact material

Gold to Gold

Bearing

Steel ball bearing

Housing Material

POM

 

Electrical Parameters

 

Circuit

4

Current

Signal

Voltage

≤240V

Dielectric strength

≥100V@50Hz between each circuit

Insulation resistance

500MΩ@ 500VDC

Electric noise

≤7MΩ

Lead wire size

28AWG/30AWG, UL ,

color Teflon, Silver or Tin Plated

Lead wire length

300mm or as specified

 

Why this slip ring Critical for Train Ultrasonic Monitoring?

 

Feature

Importance

Compact Design

Fits inside tight sensor housings on inspection equipment

Stable Signal Transmission

Maintains accuracy of flaw detection data

Low Electrical Noise

Prevents interference in high-frequency ultrasonic signals

Durable and Maintenance-Free

Withstands millions of revolutions in field environments

Through-hole Design

Easy installation

 

Mechanical Integration

 

• The central hole allows the slip ring to be installed around a rotating shaft or fixture.

• The rotor side connects to the rotating ultrasonic probe.

• The stator connects to the fixed electronics or signal processors.

 

Signal Transmission

 

• When the rotor rotates, internal gold brushes contact concentric rings that carry:

◦ Ultrasonic signal pulses (typically 1–10 MHz)

◦ Echo return signals

◦ Power supply (e.g. 12V/24V)

◦ Control or feedback signals (e.g. encoder, temperature)

• The slip ring ensures these signals are transmitted reliably while allowing 360° continuous rotation.
 

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