A-B 1326AB-C2C-11 Servo Motor

The Allen-Bradley 1326AB-C2C-11 is a high-performance AC brushless servo motor in the 1326AB servo motor series, designed for closed-loop motion control systems (typically used with Allen-Bradley servo drives such as 1391 or older Kinetix/1394 systems).

Product Information

• Brand: Allen-Bradley (Rockwell Automation)
• Series: 1326AB Servo Motor
• Part Number: 1326AB-C2C-11
• Type: AC Permanent Magnet Servo Motor
• Motor Type: 3-phase brushless synchronous servo motor
• Frame Size: C frame (approx. 7.63 in / 194 mm diameter)
• Stack Length: “2” (medium torque version)
• Mounting: Face / flange mount with keyway shaft
• Feedback: Resolver feedback (position + speed)
• Enclosure: TENV (Totally Enclosed Non-Ventilated)
• Protection: Industrial sealed design (IP65 class with proper sealing kit)

Electrical / Performance (typical for this frame class)

• Rated power: ~3.5–5.5 kW class (depending drive pairing)
• Continuous torque: ~20–25 Nm range
• Max speed: ~2000–3000 RPM (variant dependent)
• Continuous current: ~20–35 A class
• Peak torque: roughly 2× continuous (short duty)

What it actually does

This is a servo motor (not a drive, not a PLC device).

It:

• Converts electrical energy into precise rotary motion
• Works in closed-loop control systems
• Receives commands from a servo drive
• Uses feedback (resolver) to maintain accurate position, speed, and torque

System Role

Typical system chain:

PLC / Motion Controller
→ Servo Drive (1391 / Kinetix / etc.)
→ 1326AB-C2C-11 servo motor
→ mechanical load (axis, table, conveyor, etc.)

Feedback:
Motor resolver → drive → closed-loop correction

Typical Applications

• CNC machinery
• Robotics systems
• Packaging machines
• Printing and labeling equipment
• High-precision positioning systems
• Industrial automation lines

Key Features

• High dynamic response (fast acceleration/deceleration)
• Heavy-duty industrial servo design
• Resolver-based feedback (robust, no fragile encoder disk)
• High continuous torque capability
• Designed for harsh industrial environments
• Stable performance under load variation

Important Notes

• This is a legacy/discontinued servo motor series
• Usually paired with older drives (1391 / 1394 / early motion systems)
• Not directly compatible with modern Kinetix systems without engineering changes
• Replacement often requires full servo system upgrade (motor + drive + tuning)

Precautions

• Must be matched with correct drive (voltage/current compatibility critical)
• Resolver wiring must be correctly shielded and grounded
• Incorrect tuning can cause overheating or vibration
• Do not operate without proper drive configuration (motor database parameters required)
• Mechanical alignment is critical for long life (bearing stress sensitivity)