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Key Technical Specifications
| Parameter | AKM33E-ANCNR-00 |
|---|---|
| Manufacturer | Kollmorgen |
| Product Family | AKM Synchronous Servo Motor |
| Model | AKM33E-ANCNR-00 |
| Motor Type | Permanent-magnet synchronous / brushless servo motor |
| Frame / Flange | AKM3 / 70 mm |
| Rotor Stack Length | 3 |
| Winding | E |
| Feedback | Resolver |
| Continuous / Stall Torque | 2.79 Nm |
| Peak Torque | 9.96 Nm |
| Maximum Speed | 8,000 rpm |
| Rated Speed Reference | 2,000 rpm at 230 VAC |
| Shaft | Smooth, without key |
| Shaft Diameter | 14 mm |
| Mounting Pilot | 60 mm |
| Bolt Circle | 75 mm |
| Holding Brake | None |
| Protection Rating | IP54 |
| Temperature Sensor | PTC |
| Rotor Inertia | 0.85 kg·cm² |
| Weight | Approx. 2.9 kg |
| Connector | M23 angular, rotatable, SpeedTec Ready |
| Pole Configuration | 8 poles / 4 pole pairs |
Current product data lists 2.79 Nm stall torque, 9.96 Nm peak torque, and 8,000 rpm maximum speed. It also identifies the motor as the no-key 14 mm shaft / 75 mm bolt-circle configuration.
Important specification note: Some secondary listings report IP65, while other current technical listings specify IP54 and indicate that a shaft-seal option can provide IP65. For procurement, the physical nameplate and exact factory configuration should take precedence over a generic reseller listing.
Product Introduction
The Kollmorgen AKM33E-ANCNR-00 is an AKM-series permanent-magnet synchronous servo motor with a 70 mm flange, E winding, resolver feedback, and a smooth 14 mm shaft without a key. It is configured without a holding brake and uses rotatable angular SpeedTec Ready connectors.
The motor is rated at 2.79 Nm stall torque, with 9.96 Nm peak torque and a published maximum speed of 8,000 rpm. Its resolver feedback makes the exact motor-drive combination important when replacing an installed unit.
Installation & Configuration Guide
Stage 1 — Pre-Installation Preparation (~10 min)
- Record the complete motor nameplate: AKM33E-ANCNR-00.
- Verify the installed motor uses resolver feedback.
- Confirm the replacement has the same smooth, non-keyed shaft configuration.
- Check the 70 mm flange, 60 mm pilot, 75 mm bolt circle, and 14 mm shaft.
- Back up the servo amplifier’s motor and axis parameters.
- Verify the amplifier is configured for the correct Kollmorgen AKM motor data.
⚠️ Do not substitute another AKM33E variant based only on frame size. AKM33E models are available with different shaft, flange, and feedback configurations.
Stage 2 — Removing the Old Motor (~5 min)
- Place the machine in its approved maintenance state.
- Remove servo power and verify DC-bus discharge before disconnecting the motor.
- Secure the mechanical axis against gravity or stored mechanical energy.
- Label the motor power and resolver connections.
- Disconnect the connectors without applying side loads.
- Remove the coupling and mounting bolts.
- Inspect the coupling, shaft, mounting face, and cable connectors.
⚠️ Never disconnect motor or feedback connectors while the servo amplifier is energized.
Stage 3 — Installing the New Motor (~5 min)
- Compare the replacement nameplate against the removed motor.
- Verify the 14 mm smooth shaft and 75 mm bolt circle.
- Inspect the motor flange and shaft for shipping damage.
- Install the motor without striking or pressing on the shaft.
- Align the coupling according to the machine manufacturer’s requirements.
- Secure the motor to the mounting surface using the specified fasteners.
- Connect the power and resolver cables to their designated connectors.
- Ensure the rotatable connectors are positioned without excessive cable stress.
Stage 4 — Power-On & Testing (~10–15 min)
- Restore power only after the mechanical and electrical installation is complete.
- Confirm the servo amplifier recognizes valid resolver feedback.
- Verify the configured motor data against AKM33E-ANCNR-00.
- Check resolver feedback at zero speed.
- Perform a low-speed jog with the machine unloaded where practical.
- Verify direction of rotation.
- Monitor following error, current, vibration, and abnormal noise.
- Run the axis through its normal operating range only after the initial test passes.
- Record the final motor and drive parameters.
AKM33E-ANCNR-00
AKM33E-ANCNR-00
FAQ
What is the Kollmorgen AKM33E-ANCNR-00?
It is an AKM-series synchronous servo motor with resolver feedback, a 70 mm flange, E winding, smooth non-keyed shaft, and no holding brake.
What are the torque ratings?
Available technical data specifies 2.79 Nm stall torque and 9.96 Nm peak torque. Peak torque is a transient rating and should not be treated as the continuous operating torque.
What is the maximum speed?
The published maximum speed is 8,000 rpm. A separate operating point is listed at 2,000 rpm with 230 VAC. Actual permissible speed depends on the servo drive, DC-bus voltage, load, and operating conditions.
Does have a brake?
No. This exact configuration is listed without a holding brake.
Whatack does use?
It uses a resolver. Specialist listings explicitly identify the exact model as a servo motor with resolver feedback.
What is the diff between and -ACCNR-00?
The important mechanical difference is the shaft configuration. The ANCNR version is listed without a key, while ACCNR is listed with a key. Both are associated with a 60 mm pilot, 75 mm bolt circle, and 14 mm shaft in the cited product data.
Can this motor be used with any Kollmorgen servo drive?
No. The motor’s winding and resolver feedback must be compatible with the drive’s motor configuration. Earlier Kollmorgen applications commonly paired AKM motors with SERVOSTAR amplifiers, while later AKM applications can use other Kollmorgen drive families. Verify the exact drive model and motor parameters before commissioning.
