Slip rings
Moog ROTOCAP (CAP 160/220/350/400)
Contactless capacitive data ring for transferring industrial Ethernet across rotation, often paired with contact power tracks or rotary unions.
Key specifications
| Speed (max) | 500 rpm |
|---|---|
| Bore | 0–250 mm |
| Outer diameter | 160–400 mm |
| Temperature | 0–70 °C |
| Data / bus | PROFINET, SERCOS III, POWERLINK, EtherCAT, MECHATROLINK-III, FANUC FSSB, Gigabit Ethernet |
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
Notes on this data
Data rates 100 Mbit/s to 2.5 Gbit/s. Product guide lists CAP 160 (0-45 mm bore) and CAP 200 (0-40 mm), IP64, 150 rpm; datasheet (Rev A 2020) lists CAP 160/220/350/400 and 500 rpm base — datasheet values used.
Specify Motion is not affiliated with Moog Inc.. Moog and ROTOCAP (CAP 160/220/350/400) 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 series from our supply network is the closest match on published figures.
A small analogue power-and-signal slip ring with FASTON quick-connect terminals for fast wiring in dusty, high-cycle machinery. Optional IP65 sealing.
View HR Series Faston Type Slip Ring →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 slip rings series
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