Large-diameter slip rings
Moog Medical / CT scan slip rings
Large-diameter slip rings developed with CT system manufacturers, using optical and RF/capacitive coupled data rings for high-speed image data.
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Need Moog parts, a replacement or another suitable option? Send your part number or describe what the machine needs to do. We connect your requirement with experienced UK engineering and procurement support to help you get the right products, pricing and supply options. Your matched provider can take the enquiry through quotation and ordering to delivery and after-sales support.
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What are you specifying?
Select everything you need. A motor, drive and gearbox can be specified together as one axis.
Key specifications
Detailed figures vary by model. Ask an engineer for the variant you need.
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
No public numeric specs on these pages; 4K video transfer mentioned.
Specify Motion is not affiliated with Moog Inc.. Moog and Medical / CT scan slip rings are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Moog Medical / CT scan slip rings 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.
Large through-hole slip rings for heavy outdoor plant, with through holes quoted up to 1000 mm and long service life.
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
What a large-diameter slip ring is
A large-diameter slip ring is a rotary joint with a bore or ring diameter typically of several hundred millimetres up to a few metres, built for very large rotating structures. The rings are often fabricated in segments or machined as drums or platters, with brush blocks mounted around the stationary frame. Because the structure is large, they are usually designed to match the customer's machine and may integrate power, signal, data, fibre or contactless channels and media passages in one assembly.
When engineers choose a large-diameter slip ring
Choose a large-diameter design when the rotating structure has a big central opening, such as CT gantries, large turntables, radar pedestals, cranes and slewing platforms, or when cabling and services must pass through a wide bore. The trade-offs are cost, lead time and high surface speed even at modest rpm, which limits speed and raises brush wear. Mechanical runout of the machine becomes significant at this scale, so the slip ring is usually designed alongside the structure rather than chosen from a catalogue.
How to specify the Moog Medical / CT scan slip rings
Send these with your enquiry and an engineer can confirm the right Medical / CT scan slip rings variant or an equivalent:
- Bore and outer diameter limits (mm)
- Speed and surface speed (rpm, m/s)
- Power circuits, current and voltage (A, V)
- Data rates and channels, including contactless or fibre
- Structure runout and flatness at the mounting faces (mm)
- Environment: outdoor exposure, IP code and temperature (°C)
- Segmentation for installation and maintenance access
Common mistakes to avoid
- Specifying late, when the structure leaves too little room or too much runout for the slip ring
- Using the catalogue rpm without checking surface speed at the actual diameter
- Not planning how the ring will be lifted, installed and serviced in place
- Leaving out data rate growth, so the channel count is outgrown within the machine's life
Moog Medical / CT scan slip rings: frequently asked questions
Can you help replace Moog Medical / CT scan slip rings 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 Medical / CT scan slip rings?
Large-diameter slip rings developed with CT system manufacturers, using optical and RF/capacitive coupled data rings for high-speed image data. It is made by Moog Inc.; Specify Motion can help source it or propose an equivalent.
Who makes the Moog Medical / CT scan slip rings?
The Moog Medical / CT scan slip rings 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.
Is there an alternative to the Moog Medical / CT scan slip rings?
We can assess suitable replacement options. On published figures, Motion Control Products Large Size Slip Ring is options to assess from our supply network. An engineer confirms the fit against your application before recommending anything.
Why do large slip rings have lower speed ratings?
Surface speed is diameter multiplied by rotational speed, so a ring a metre across turning at 60 rpm already runs faster at the contact than a small capsule at a thousand rpm. Brush wear, heat and contact bounce all rise with surface speed. Large-diameter designs manage this with brush materials, contact force and runout control, but their rpm ratings are typically far lower.
How is high-speed data passed through a large-diameter slip ring?
Contact rings work for slower networks, but for very high data rates, such as CT image data, large rings often use contactless capacitive, inductive or optical transmission around the circumference. A fibre optic rotary joint can also be placed on the axis if the centre is accessible. State the data rate and latency requirements early, as they shape the whole design.
Further reading: How to select a slip ring · How to select a fibre optic rotary joint · Slip rings
Other large-diameter slip rings series
Engineer support
Let our experienced engineers do the hard work for you
Tell us how you use the Moog Medical / CT scan slip rings: 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.
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