Marine and subsea slip rings
Moog Seismic Slip Rings
Marine slip rings for seabed survey vessels that combine high-power rings, Ethernet, optical channels and air ports in one unit. Also used on gun winches.
Key specifications
| Circuits (max) | 23 |
|---|---|
| Current per circuit (max) | 120 A |
| Voltage (max) | 1,000 V |
| Speed (max) | 20 rpm |
| Ingress protection | up to IP65 |
| Data / bus | Ethernet 100 Mbit/s, Optical via integrated FORJ (up to 30 Gbit/s) |
| Fibre channels (max) | 8 |
Summarised in our own words from Moog Inc.'s published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1
Specify Motion is not affiliated with Moog Inc.. Moog and Seismic Slip Rings are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
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.
Fibre optic rotary joints that carry single-mode or multi-mode optical channels across rotation for high-bandwidth, interference-free data. Channel counts run from one to fifty.
| Published maximum | Seismic Slip Rings | FR Series Fiber Optic Rotary Joint |
|---|---|---|
| Circuits | 23 | — |
| Current per circuit | 120 A | — |
| Speed | 20 rpm | 2,000 rpm meets or exceeds |
| Voltage | 1,000 V | — |
| Fibre channels | 8 | 50 meets or exceeds |
Heavy-duty carbon-brush slip rings for very high current and voltage, with copper-graphite power rings and precious-metal signal rings. Large and heavy by design, but straightforward to maintain.
| Published maximum | Seismic Slip Rings | BHR Series Frameless Type (Carbon Brush) |
|---|---|---|
| Circuits | 23 | 76 meets or exceeds |
| Current per circuit | 120 A | 500 A meets or exceeds |
| Speed | 20 rpm | 10 rpm |
| Voltage | 1,000 V | 20,000 V meets or exceeds |
| Fibre channels | 8 | — |
Sealed slip rings rated IP64 to IP68 for wet, washdown and marine settings such as ships and harbour equipment.
| Published maximum | Seismic Slip Rings | Waterproof Slip Ring |
|---|---|---|
| Circuits | 23 | 44 meets or exceeds |
| Current per circuit | 120 A | 85 A |
| Speed | 20 rpm | 600 rpm meets or exceeds |
| Voltage | 1,000 V | 1,100 V meets or exceeds |
| Bore | — | 127 mm |
| Fibre channels | 8 | — |
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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