Contactless rotary data link
Moog ROTOCAP (CAP 160/220/350/400) contactless rotary data link
Contactless capacitive data ring for transferring industrial Ethernet across rotation, often paired with contact power tracks or rotary unions.
Need this part, a replacement or a complete package? Our experienced UK engineering team helps you select, source and obtain the right products, with pricing, delivery coordination and after-sales support.
Pricing and availability
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Need Moog parts, a replacement or a suitable alternative? Send us a part number, or tell us what the machine needs to do. Our UK engineers will come back with the right product, pricing, lead time and delivery, whether that is the original part, a checked alternative or a complete axis.
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Spec builder
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- 1Products
- 2Performance
- 3Environment
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- 5Your spec
What are you specifying?
Select everything you need. A motor, drive and gearbox can be specified together as one axis.
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.
Moog ROTOCAP (CAP 160/220/350/400) replacement and alternative options
Use these supply-network options as a starting point for an engineering check. We can also help source the original Moog part. Published series figures do not establish an exact-model or drop-in replacement: confirm ratings, fit, interfaces and approvals for your application.
Hybrid units combining fibre optic channels with power and signal circuits, used on electro-optical pod systems.
| Published maximum | ROTOCAP (CAP 160/220/350/400) | Fiber Optic Integrated Electrical Slip… |
|---|---|---|
| Circuits | — | 70 |
| Current per circuit | — | 30 A |
| Speed | 500 rpm | 500 rpm meets or exceeds |
| Bore | 250 mm | — |
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 | ROTOCAP (CAP 160/220/350/400) | FR Series Fiber Optic Rotary Joint |
|---|---|---|
| Speed | 500 rpm | 2,000 rpm meets or exceeds |
| Bore | 250 mm | — |
| Fibre channels | — | 50 |
Slip rings built for 800 to 15,000 rpm, mainly used on test rigs and non-destructive testing equipment.
| Published maximum | ROTOCAP (CAP 160/220/350/400) | High Speed Slip Ring |
|---|---|---|
| Speed | 500 rpm | 15,000 rpm meets or exceeds |
| Bore | 250 mm | — |
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.
Typical applications
Moog ROTOCAP (CAP 160/220/350/400): frequently asked questions
Can you help replace Moog ROTOCAP (CAP 160/220/350/400) or source the original?
Send the full model code, quantity and required date. Our engineers can check original-part availability and assess suitable alternatives, including supply-network options where appropriate. We confirm compatibility and any changes needed before recommending a replacement.
What is the 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. Published series figures include speed 500 rpm, bore 0 mm, bore 250 mm, outer diameter 160 mm. It is made by Moog Inc.; Specify Motion can help source it or propose an equivalent.
Who makes the Moog ROTOCAP (CAP 160/220/350/400)?
The Moog ROTOCAP (CAP 160/220/350/400) is made by Moog (Moog Inc.) and is listed here for engineers comparing options. Specify Motion is not affiliated with Moog Inc.; brand names are used only to identify the product.
What is the speed of the Moog ROTOCAP (CAP 160/220/350/400)?
The published series maximum speed is 500 rpm. Individual models and sizes in the ROTOCAP (CAP 160/220/350/400) range vary, so check the exact variant against your duty cycle, mounting and environment, or ask our engineers to confirm the right size for you.
Is there an alternative to the Moog ROTOCAP (CAP 160/220/350/400)?
We can assess suitable replacement options. On published figures, Motion Control Products Fiber Optic Integrated Electrical Slip Ring and Motion Control Products FR Series Fiber Optic Rotary Joint are options to assess from our supply network. An engineer confirms the fit against your application before recommending anything.
Other contactless rotary data link series
Engineer support
Let our experienced engineers do the hard work for you
Tell us how you use the Moog ROTOCAP (CAP 160/220/350/400): the load, speed, duty and environment. Our engineers will confirm whether it is still the right part, find it for you, or propose an alternative that fits better.
- Reviewed by an engineer, not an autoresponder
- Like-for-like and better-fit alternatives
- Standard, modified and custom options
Prefer to configure it? Use the spec builder.
How it works
From enquiry to delivery
Send a part number or describe the application. Our engineers take it from there: the right product, a clear quotation, and delivery and support arranged.
- 01Tell us what you needSend a part number, or configure the application, quantities and timing.
- 02An engineer reviews itWe check the specification and find the original part, a checked equivalent or a complete axis.
- 03Receive your quotationProducts, pricing, lead time and compatibility notes in one reply.
- 04Order and deliveryWhen you are happy, the order is placed and delivery and after-sales support are arranged.