Housed direct-drive motor
Akribis Systems ADR-B housed direct-drive motor
Housed iron-core direct drive motors with larger through-holes than ADR-A, 110-220 mm frames, optical encoder feedback.
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Need Akribis Systems 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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Select the products and performance you need. Our UK engineering team can use your specification to help source the right components, pricing and supply options. See your summary before adding contact details.
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- 1Products
- 2Performance
- 3Environment
- 4Volumes
- 5Your spec
What are you specifying?
Select everything you need. A motor, drive and gearbox can be specified together as one axis.
Key specifications
| Outer diameter | 110–220 mm |
|---|---|
| Inner diameter (max) | 87 mm |
| Ingress protection | IP40 |
| Speed (max) | 2,000 rpm |
| Weight | 3200-23400 |
| Voltage | 600 VDC bus max |
Series ranges as published; individual models vary. The full datasheet, drawings and CAD models are available on request.
Engineer support
Speak to our engineers about your project
Our experienced engineers are on hand, ready to help with your project. Whether you need the Akribis Systems ADR-B itself, help sourcing it, or a modified or custom design built around your load, speed and space, tell us what the machine has to do and we'll come back with the right option.
- Help sourcing ADR-B and spares for installed machines
- Modified and custom designs when a catalogue part doesn't fit
- Complete axis: motor, drive, gearing and feedback matched together
Akribis Systems ADR-B model codes
Published model codes in the ADR-B range, with key figures from the manufacturer's data. Search this page for your part number, or send it to us for availability, pricing and lead time.
| Model code | Outer diameter (mm) | Description | Pricing / replacement |
|---|---|---|---|
| ADR110-B113 | 110 | Series or parallel winding | Quote or replacement for ADR110-B113 → |
| ADR110-B136 | 110 | Series or parallel winding | Quote or replacement for ADR110-B136 → |
| ADR135-B121 | 135 | Series or parallel winding | Quote or replacement for ADR135-B121 → |
| ADR135-B148 | 135 | Series or parallel winding | Quote or replacement for ADR135-B148 → |
| ADR175-B143 | 175 | Series or parallel winding | Quote or replacement for ADR175-B143 → |
| ADR175-B180 | 175 | Series or parallel winding | Quote or replacement for ADR175-B180 → |
| ADR220-B167 | 220 | Series or parallel winding | Quote or replacement for ADR220-B167 → |
| ADR220-B217 | 220 | Series or parallel winding | Quote or replacement for ADR220-B217 → |
Options
- ABI optical SIN/COS encoder
- ABI digital 80x/160x/400x
- ATOM DX optical incremental encoder
- Series/parallel winding
Typical applications
What a housed direct-drive motor is
A housed direct-drive motor is a high-pole-count permanent-magnet torque motor supplied in a complete housing with its own bearings, typically a precision cross-roller or similar bearing, and a high-resolution encoder. The load bolts directly onto the rotor face or shaft, with no gearbox or belt between motor and load. Many designs have a large hollow centre. They are run by a servo drive and provide high torque at low speed with very high stiffness and accuracy.
When engineers choose a housed direct-drive motor
Choose a housed direct-drive motor for rotary tables, indexers and turntables that need high accuracy, fast indexing and no backlash, without the integration effort of a frameless motor. It is ready to mount. The trade-offs are cost and size: direct drive needs a large motor for high torque, and the bearing and encoder are set by the range. Where torque needs are high and accuracy moderate, a servo with a precision gearbox may be cheaper.
How to specify the Akribis Systems ADR-B
Send these with your enquiry and an engineer can confirm the right ADR-B variant:
- Continuous and peak torque (Nm)
- Speed (rpm)
- Load inertia and moment load (kgm², Nm)
- Axial and radial load capacity (N)
- Encoder type and resolution
- Through-hole diameter (mm)
- Bus voltage and drive compatibility
Common mistakes to avoid
- Ignoring moment loads from offset tooling
- Mismatching encoder interface and drive
- Overlooking thermal effects on accuracy
- Expecting high torque without a large frame
Akribis Systems ADR-B: frequently asked questions
Can you help replace Akribis Systems ADR-B 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 Akribis Systems ADR-B?
Housed iron-core direct drive motors with larger through-holes than ADR-A, 110-220 mm frames, optical encoder feedback. Published series figures include outer diameter 110 mm, outer diameter 220 mm, inner diameter 87 mm, speed 2,000 rpm. It is available through our supply network, and our engineers can confirm the right variant for your application.
What model codes are in the Akribis Systems ADR-B range?
The ADR-B range includes ADR110-B113, ADR110-B136, ADR135-B121, ADR135-B148, ADR175-B143, ADR175-B180, ADR220-B167, ADR220-B217. The table on this page lists each published model code with its key figures. Send us the code you use, or the one you need to replace, and our engineers will confirm availability, lead time or the closest equivalent.
Who makes the Akribis Systems ADR-B?
The Akribis Systems ADR-B is made by Akribis Systems available through our supply network. Send us your requirement for pricing, lead time, datasheets and CAD.
What is the outer diameter of the Akribis Systems ADR-B?
The published series minimum outer diameter is 110 mm. Individual models and sizes in the ADR-B 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 Akribis Systems ADR-B?
We can assess suitable replacement options. Our engineers can review the original model and propose options for your load, speed and environment. An engineer confirms the fit against your application before recommending anything.
When should I choose a direct-drive rotary table instead of a geared one?
Choose direct drive when you need high accuracy, fast settling, no backlash and low maintenance, especially for indexing and inspection. Choose a geared solution where torque requirements are high and cost must be controlled. Direct-drive motors are larger for the same torque.
Do housed direct-drive motors need a brake?
Not always. Horizontal tables often hold position under servo control. Vertical axes, unbalanced loads or safety requirements may need a brake or clamp. The machine's risk assessment determines whether a holding brake or clamp is required, and brake or clamp options vary between ranges, so confirm availability early in the design.
Further reading: How to select a frameless torque motor · Frameless and torque motors
Often compared with
Engineers specifying this series often compare it with:
Other housed direct-drive motor series
Engineer support
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