The FANUC A06B-2235-B605 is an Alpha i series AC servo motor, model aiS8/4000-B. The low-inertia aiS design provides high acceleration for CNC machine tool feed axes, and this build adds an integral holding brake for vertical-axis service.
The motor has a tapered shaft for secure coupling and a 90 VDC holding brake, with a FANUC i series high-resolution pulse coder for feedback. Typical applications include machining centers, lathes, and robotic equipment.
Technical Specifications
Manufacturer
FANUC
Part Number
A06B-2235-B605
Series
Alpha i (aiS) AC servo motor
Motor Model
aiS8/4000-B
Rated Stall Torque
8 Nm
Maximum Speed
4,000 RPM
Shaft
Tapered
Holding Brake
Yes, 90 VDC
Feedback
i series high-resolution encoder
Application
CNC feed axis
Eligible for next day delivery
Same-day shipping on in-stock IAC items ordered by 4:00 PM Eastern, Monday to Friday.
Covered by Industrial Automation Co.'s 2-Year Warranty.
Condition
SKU
Price
Warranty
Availability
Quantity
Purchase
New Surplus
A06B-2235-B605
£1,449.00 GBP
2-Year IAC Warranty (included)
1 In Stock in the United States!
Extend your warranty coverage at checkout2 yrs included free
Pricing for this item — you’ll pick a term on the checkout page.
Extended plans are available at checkout on items $200 and up.
+1 yr → 3 total$217/yr£217.35 · thru 2029
+3 yrs → 5 total$193/yr£579.60 · thru 2031
+5 yrs → 7 total$145/yr£724.50 · thru 2033
BEST VALUE+8 yrs → 10 total$109/yr£869.40 · thru 2036
Full defect protection · free RMA evaluation & repair · same‑day replacement when in stock
Description
The FANUC A06B-2235-B605 is an Alpha i series AC servo motor, model aiS8/4000-B. The low-inertia aiS design provides high acceleration for CNC machine tool feed axes, and this build adds an integral holding brake for vertical-axis service.
The motor has a tapered shaft for secure coupling and a 90 VDC holding brake, with a FANUC i series high-resolution pulse coder for feedback. Typical applications include machining centers, lathes, and robotic equipment.
Technical Specifications
Manufacturer
FANUC
Part Number
A06B-2235-B605
Series
Alpha i (aiS) AC servo motor
Motor Model
aiS8/4000-B
Rated Stall Torque
8 Nm
Maximum Speed
4,000 RPM
Shaft
Tapered
Holding Brake
Yes, 90 VDC
Feedback
i series high-resolution encoder
Application
CNC feed axis
Part Number Breakdown
Part number breakdown — A06B-2235-B605
αi-B Series AC Servo Motor (αiS-B / αiF-B)
Motor model 2235
αiS 8/4000-B
Specifications
series
αiS
voltage
200V
Alarm codes (159)
Motor-related alarms are displayed by the connected amplifier / CNC. Full troubleshooting reference for this servo motor:
Decoded from FANUC documentation (B-65270EN/10, B-65515EN/01). Questions? Call 877-727-8757 or email sales@iac.us.com.
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Send in your item for a free evaluation and repair quote. Use our RMA form or email a repair request to service@iac.us.com , and we will contact you to assess your situation and offer shipping information.
Technical Support
Need help with installation, configuration, or troubleshooting? Our technical experts are available to assist you.
Industrial Automation Co. is a premier supplier of replacement and aftermarket industrial components. In addition to the A06B-2235-B605, we offer hundreds of FANUC parts available now in our warehouse. Most of our automation components ship on the same day and are covered by our two-year service warranty. Contact us to order your FANUC replacement parts today.