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The Allen-Bradley/Rockwell Automation 1326AB-B720E-21-MK7 servo motor is a Bulletin 1326 series servo motor. It comes with a metric flange that has a keyway, and with a 2-inch stack of ferrite magnets that reduce its operating friction. The 1326AB-B720E-21-MK7 servo motor uses multi-turn high-resolution feedback. This servo motor comes with a built-in holding brake that has a 24 Volts DC coil and a torque rating of 140 pounds on an inch or 41 N-m. The 1326AB-B720E-21-MK7 servo motor has a Size 7 frame with a diameter of 194 millimeters and a metric flange.
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| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Ferrite AC Servo Motor |
| Product Line | 1326 Motors |
| Part Number | 1326AB-B720E-21-MK7 |
| Weight | 150.00 lbs (68.04 kg) |
| Voltage | 460 Volts AC, 380 Volts AC |
| Frame Series | 194-millimeter frame diameter (215-millimeter bolt center |
| Motor Length | 2 inches |
| Motor Speed | 460 Volts AC: 3500 rpm, 380 Volts AC, 3000 rpm |
| Flange and Shaft Series | IEC metric flange with a keyway |
| Feedback | Multi-turn high-resolution feedback |
| Standard Options | 41 N-m (140 pounds on an inch) holding brake with 24 Volts DC coil for the 1326AB-B7 frame series |
| Product Lifecycle Status* | Discontinued/Obsolete |
* The Allen Bradley 1326AB-B720E-21-MK7 has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1326AB-B720E-21-MK7 units instead of migration.
The 1326AB-B720E-21-MK7 servo motor is an Allen-Bradley manufactured servo motor that takes AC input voltage from a 3-phase electrical source. The servo motor can perform with a dual voltage rating of 460 Volts AC and 380 Volts AC. The speed rating depends on the input voltage rating. This brushless servo motor is equipped with a feedback device. This device has been certified with the CE, CSA, and UL standards. The 1326AB-B720E-21-MK7 servo motor is widely used in position control. The installation area of the servo motor should be free from all traces of electromagnetic noise. The airflow between the nearest ventilation source and the servo motor should not be obstructed. Any heat-generating device should not be kept near the servo motor. The body of the motor has a 215-millimeter bolt center and the stainless-steel body of the motor is housed inside a 194-millimeter frame. By using the IEC metric flange, the motor can be mounted in different industrial locations. The drive has the ability to operate in harsh environmental conditions because it has been certified with an IP 67 protection rating.
The 1326AB-B720E-21-MK7 servo motor makes use of ferrite magnets for increasing its performance. The servo motor consists of a servo motor and a controller which drives the servo motor and they are connected to each other by using cables. A spring-enabled holding brake is equipped in the servo motor as a holding brake. This brake is released after the voltage has been applied to the brake coil. The 1326AB-B720E-21-MK7 servo motor has been manufactured for factory use only. A NEMA/IEC metric flange with a keyway is available in this servo motor model. A multi-turn high-resolution feedback encoder is available in the servo motor to transfer the feedback from the current inputs. Quick decisions can be made based on the feedback sent by the servo motor’s encoder to the users.
| Revision Part # | Also known as | |
|---|---|---|
| 1326AB-B720E-21-MK7 Ser A | 1326AB-B720E-21-MK7/A, Series A, Rev A | |
| Don't see your particular revision? Contact us now. | ||
This Ferrite AC Servo Motor(460V/380V AC) comes with a 194 mm frame diameter (215 mm bolt center and a 2 in. magnet stack length. Depending on the voltage, this unit's motor speed is 460V: 3500rpm / 380V: 3000rpm, and the flange and shaft type is a IEC metric flang with keyway. The feedback type is a Multi-turn high-resolution feedback and has a 41 N-m (140 lb-in.) Holding brake with 24V DC coil for 1326AB-B7 frame series.