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SRH50120 Through-Bore Slip Ring

Vendor: / Hangzhou Quansheng

Product: SRH50120

SRH50120 Through-Bore Slip Ring

The SRH50120 is a 50 mm through-bore slip ring from Hangzhou Quansheng with a 120 mm outer diameter, a 50 +0.3 mm bore and a 4-M4 mounting flange, allowing cables or shaft structures to pass through while the assembly rotates continuously through 360 degrees. It combines power and signal circuits rated at 380 VAC and 240 VAC/VDC respectively. Power wiring uses AWG16 tinned copper with PTFE/PVC insulation, signal wiring uses AWG22 silver-plated copper with PTFE insulation, and the standard lead length is 500 mm. Dynamic resistance variation is below 0.01 Ω, operating speed spans 0–500 rpm and temperature spans -20 to +80 °C. At 500 VDC, insulation resistance is at least 1000 MΩ for power circuits and 500 MΩ for signal circuits; the assembly also withstands 500 VAC at 50 Hz for 60 seconds. Precious-metal contacts are housed in engineering plastic or aluminum alloy with IP51 protection, axial lengths range from 70 to 220 mm, and configurations can be customized up to 156 circuits. The published starting torque is 0.1 N/m for a six-circuit unit, increasing by 0.03 N/m for every additional six circuits.

Mounting4-M4 mounting holes
Power LeadAWG16 tinned copper, PTFE/PVC insulation
Signal LeadAWG22 silver-plated copper, PTFE insulation
Axial Length70–220 mm depending on circuit configuration
Bore Diameter50 +0.3 mm
Power Voltage380 VAC
Outer Diameter120 mm
Signal Voltage240 VAC/VDC
Operating Speed0–500 rpm
Starting Torque6 0.1N/m, 6 0.03N/m
Contact MaterialPrecious metal
Housing MaterialEngineering plastic or aluminum alloy
Maximum CircuitsCustomizable up to 156
Relative Humidity60% or higher
Ingress ProtectionIP51
Dielectric Withstand500 VAC / 50 Hz for 60 s
Standard Lead Length500 mm
Operating Temperature-20 to +80 °C
Power Insulation Resistance≥1000 MΩ at 500 VDC
Dynamic Resistance Variation<0.01 Ω
Signal Insulation Resistance≥500 MΩ at 500 VDC

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