Marine and subsea slip rings
Moog Model 176
Variable-length marine slip ring, also available as an electro-optical hybrid with up to 52 fibre passes.
Key specifications
| Current per circuit (max) | 20 A |
|---|---|
| Voltage (max) | 7,200 V |
| Speed (max) | 50 rpm |
| Outer diameter | 140–140 mm |
| Fibre channels (max) | 52 |
Summarised in our own words from Moog Inc.'s published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2 · Source 3
Notes on this data
720 A total. Hybrid listing quotes up to 7.4 kV. Guide gives 7.50 in OD; web 5.52 in/140 mm (web used).
Specify Motion is not affiliated with Moog Inc.. Moog and Model 176 are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Moog part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
Slip rings that keep USB and IEEE1394 links working through continuous 360-degree rotation, combined with power circuits.
| Published maximum | Model 176 | USB Slip Ring |
|---|---|---|
| Circuits | — | 32 |
| Current per circuit | 20 A | 20 A meets or exceeds |
| Speed | 50 rpm | 300 rpm meets or exceeds |
| Voltage | 7,200 V | — |
| Bore | — | 38.1 mm |
| Fibre channels | 52 | — |
Gold-contact slip rings for uncompressed HD video (HDMI, SDI) mixed with USB, Ethernet, RF and RS422, rated for 1080P at 60Hz and beyond.
| Published maximum | Model 176 | High Definition (HD) Slip Ring |
|---|---|---|
| Circuits | — | 32 |
| Current per circuit | 20 A | 60 A meets or exceeds |
| Speed | 50 rpm | 250 rpm meets or exceeds |
| Voltage | 7,200 V | — |
| Bore | — | 38.1 mm |
| Fibre channels | 52 | — |
Flameproof slip rings certified Exd IIBT4 Gb for hazardous areas in oil, gas, chemical and explosive-dust environments, with a wide operating temperature band.
| Published maximum | Model 176 | Explosion-proof Slip Ring (ER-EX) |
|---|---|---|
| Circuits | — | 17 |
| Current per circuit | 20 A | 100 A meets or exceeds |
| Speed | 50 rpm | 50 rpm meets or exceeds |
| Voltage | 7,200 V | — |
| Bore | — | 180 mm |
| Fibre channels | 52 | — |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other marine and subsea slip rings series
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