Synchronous AC Motors
Last Updated: January 16, 2025 Reviewed by: Jon Lowy, consulting engineer
Description
Synchronous AC motors are a type of electric motor that operates at a constant speed, synchronized with the frequency of the AC power supply. These motors are designed to convert AC electrical power into mechanical power efficiently and are known for their ability to maintain a fixed speed regardless of load variations.
Working Principle
Synchronous AC motors work by using a wound rotor and a stator with wire coils that create a rotating magnetic field when AC power is supplied. Direct current (DC) is applied to the rotor to produce a rotating electromagnetic field. The motor achieves synchronous speed when the rotor and the stator's rotating magnetic field are synchronized, meaning they rotate at the same speed. This synchronization ensures that the motor operates at a constant speed, which is a multiple of the power supply frequency. The motor requires an external device, such as a DC motor or damper windings, to start because it has little to no starting torque.
Applications
Synchronous AC motors are used in applications where maintaining a constant speed is critical. Specific examples include:
- Clocks and turntables, where precise speed control is essential.
- Large industrial applications, such as conveyor systems and compressors, where efficiency and power factor correction are important.
- Power factor correction in electrical systems, as these motors can operate at leading or unity power factor.
Advantages over other AC Motors
Synchronous AC motors offer several advantages over other types of AC motors:
- Constant Speed: Unlike induction motors, synchronous motors maintain a constant speed regardless of load variations, making them ideal for applications requiring precise speed control.
- Efficiency: These motors are highly efficient in converting AC electrical power to mechanical power, especially in large industrial applications.
- Power Factor Correction: Synchronous motors can operate at a leading or unity power factor, which helps in improving the overall power factor of the electrical system.
Limitations
Synchronous AC motors have some specific limitations:
- Starting Torque: These motors have little to no starting torque and require an external device to start.
- Higher Initial Cost: The initial cost of synchronous motors is higher compared to equivalent three-phase induction motors.
- Complexity: The need for an external DC source and additional components like slip rings and brushes adds to the complexity and maintenance requirements.
Considerations
When considering synchronous AC motors, several factors should be taken into account:
- Initial Costs: The initial cost of synchronous motors is higher due to the need for additional components like slip rings, brushes, and an external DC source.
- Operating Expense: While the operating efficiency is high, the need for regular maintenance of components like brushes and slip rings can add to the operating expenses.
- Durability: These motors are durable and reliable, especially in applications requiring constant speed and high efficiency.
- Accuracy: Synchronous motors provide precise speed control, making them suitable for applications where exact speed is crucial.
- Replacement and Maintenance Costs: Regular maintenance is required for components like slip rings and brushes, which can add to the overall maintenance costs. However, the high efficiency and reliability can offset these costs in the long run.
from Tecnotion
The QMT-HA 385 series redefines what's possible in the same stator size. Delivering up to 41% more performance, it upgrades your machine with minimal mechanical impact. The HA series distinguished itself with an increased rotor height while keeping the outside of the stator equal. With seamless... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
SYNCHRONOUS MOTOR - BMP - 480 VA [See More]
- AC Construction: Synchronous
- Continuous Torque: 10.4
- Output Power: 0.4959
- Units: English
from Shenzhen Yunhongda Motor Co., LTD.
50mm diameter AC synchronous motor 1rpm 18kg.cm [See More]
- AC Construction: Synchronous
- Continuous Current: 0.5000
- Output Power: 0.0134
- Continuous Torque: 15.6
from RS Components, Ltd.
MOTOR GEARHEAD 1/30RPM [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0040
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Units: Metric
from Tecnotion
The QMT-HA 485 with it's unmatched performance, is Tecnotion's largest high-torque motor. It enables more accuracy or increases machine productivity. The largest QMT-HA 485 series sets the new benchmark, delivering up to 80% more performance with the same stator and rotor footprint. The higher rotor... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
SYNCHRONOUS MOTOR - BMP - 480 VA [See More]
- AC Construction: Synchronous
- Continuous Torque: 21.2
- Output Power: 1.01
- Units: English
from Shenzhen Yunhongda Motor Co., LTD.
AC synchronous motor low speed with high torque, mainly used for the automation machines. [See More]
- AC Construction: Synchronous
- Continuous Current: 0.5000
- Output Power: 0.0188
- Continuous Torque: 33.0
from RS Components, Ltd.
MOTOR GEARHEAD 1RPM [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0040
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Gear Type: Ovoid
from Tecnotion
The QMT-LA 230 series is designed for seamless integration - whether in existing systems or new setups. Its aluminum housing keeps weight low, boosting dynamics in rotary tables, trunnion tables, or other moving axes. [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
SYNCHRONOUS MOTOR - BMP - 480 VA [See More]
- AC Construction: Synchronous
- Continuous Torque: 62.0
- Output Power: 1.47
- Units: English
from RS Components, Ltd.
Synch geared AC motor,5rpm 230V 0.42W [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0040
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Units: Metric
from Tecnotion
The QMT-LA 310 series is one of the most widely used motor series because it is suitable for many applications, from cutting and grinding to metrology and indexing tables. Its high efficiency keeps cooling demand low, making it ideal as a direct replacement in existing machines. With this upgrade,... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
INTEGRATED DRIVE ILA WITH SERVO [See More]
- AC Construction: Synchronous
- Units: English
- Continuous Torque: 2.3
- Shaft Speed: 5500
from RS Components, Ltd.
Synch geared AC motor,6rpm 230V 0.42W [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0040
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Units: Metric
from Tecnotion
The QMT-LA 385 delivers up to 15% more performance in both continuous torque and efficiency, without changing the mounting interface. It raises the standard for torque density in its class. Looking beyond 15%? The QMT-HA 385, with its higher rotor design, takes performance even to the next level. [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
SYNCH GEAR MOTOR SP3 2.5RPMCW [See More]
- AC Construction: Synchronous
- Continuous Torque: 6.1
- Output Power: 0.0054
- Units: English
from RS Components, Ltd.
Synch geared AC motor,15rpm 230V 0.42W [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0040
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Units: Metric
from Tecnotion
The QMT-LA 485 boosts both continuous torque and efficiency by up to 15%, all while keeping the same mounting interface. Thanks to its aluminum housing, this powerhouse is lighter than expected. This low weight makes installation easier and reduces the overall impact on your machine. When 15% isn't... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
SYNC GEAR MOTOR SP36 30RPM CW [See More]
- AC Construction: Synchronous
- Continuous Torque: 0.5
- Output Power: 0.0054
- Units: English
from RS Components, Ltd.
Synch geared AC motor,20rpm 230V 0.42W [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0040
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Units: Metric
from Tecnotion
The QTL 210 series provides more torque than the smaller QTR series. The QTL 210 is the smallest of the QTL range and is available in three heights, 65, 85 and 105 mm. It has a large inner diameter suitable to route multiple cables through, allowing flexibility in the application. It therefore suits... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
SYNC GEAR MOTOR SP36 30RPM CCW [See More]
- AC Construction: Synchronous
- Continuous Torque: 0.5
- Output Power: 0.0054
- Units: English
from RS Components, Ltd.
MOTOR GEARHEAD 30RPM [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0040
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Gear Type: Ovoid
from Tecnotion
The QTL 230 is essentially a QTL 210 motor with a cooling ring for high continuous torque even in combination with high duty cycles and dynamic movement profiles. This cooling ring should be closed with the housing, which creates a cooling channel. It will deliver 67-146 Nm continuous torque and... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
Synchronous AC Motor Gearmotor 20 RPM 7.2W 230 ~ 240VAC [See More]
- AC Construction: Synchronous
- Continuous Torque: 44.3
- Output Power: 0.0096
- Gearbox Ratio: 12.5
from RS Components, Ltd.
MOTOR GEARHEAD 60RPM [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0040
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Gear Type: Ovoid
from Tecnotion
The QTL 290 expands on the QTL 210 design to meet even higher torque demands. In combination with low induction values and fast response time this series allows for highly dynamic movements. It makes the series ideal for usage in packaging and laser cutting machinery. The motor should be connected... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
Synchronous AC Motor Gearmotor 0.05 RPM 3W 115VAC [See More]
- AC Construction: Synchronous
- Continuous Torque: 4.4
- Output Power: 0.0040
- Gearbox Ratio: 240
from RS Components, Ltd.
MOTOR GEARHEAD 1RPM [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0040
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Gear Type: Ovoid
from Tecnotion
The QTL 310 series is based on the QTL 290 with the addition of cooling ring. The cooling ring provides bolting holes for easy installation. This cooling ring should be closed with the housing, which creates a cooling channel. The motor is a reliable heavy duty workhorse. Because of the integrated... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
Synchronous AC Motor Standard 250 RPM 3.5W 230 ~ 240VAC [See More]
- AC Construction: Synchronous
- Continuous Torque: 0.3
- Output Power: 0.0047
- Units: English
from RS Components, Ltd.
Synch geared AC motor,24rpm 230V 0.42W [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0047
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Units: Metric
from Tecnotion
The QTL 385 and QTL485 torque motors supersede the QTL-210 -310 series as the biggest torque motors that Tecnotion has to offer. It has the same efficient and space-saving electromagnetic design scaled up for even higher torque demands. With a big inner diameter, it is very suitable to integrate... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 680 VDC; 120V/60Hz; 208-230/240V 60Hz; 460/480V/60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
Synchronous AC Motor Gearmotor 5 RPM 3.5W 230VAC [See More]
- AC Construction: Synchronous
- Continuous Torque: 4.4
- Output Power: 0.0047
- Gearbox Ratio: 120
from RS Components, Ltd.
MOTOR GEARHEAD 1RPH [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0047
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Gear Type: Ovoid
from Tecnotion
The QTR 105 is where the medium-range of Tecnotion QTR motors starts. QTR 105 motors are available with a wide range of options such as different winding types and a digital hall sensor. Various medical and health care applications benefit from the large inner diameter of the QTR 105 as well as the... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 325 VDC / 565 VDC; 120V/60Hz; 208-230/240V 60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
Synchronous AC Motor Standard 600 RPM 0.16W 230VAC [See More]
- AC Construction: Synchronous
- Continuous Torque: 0.0
- Output Power: 2.14E-4
- Units: English
from RS Components, Ltd.
Synchronous reversible ACmotor,1rpm 240V [See More]
- AC Construction: Synchronous Geared; Synchronous
- AC Motor Features: Reversible
- AC Voltage & Frequency: 230, 240 V; 208-230/240V 60Hz
- Output Power: 0.0096
from Tecnotion
The QTR 133 is the second medium-range QTR motor. It covers the torque range from 2.6 to 21.9Nm. The largest 60mm high QTR 133-60 motor offers a peak torque of 35.3Nm. Different winding types make the motor suitable for a wide variety of semiconductor and robotics applications for low voltage or... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 325 VDC / 565 VDC; 120V/60Hz; 208-230/240V 60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
Synchronous AC Motor Gearmotor 1 RPM 3.5W 230 ~ 240VAC [See More]
- AC Construction: Synchronous
- Continuous Torque: 44.3
- Output Power: 0.0047
- Gearbox Ratio: 250
from RS Components, Ltd.
Synchronous reversible ACmotor,2rpm 240V [See More]
- AC Construction: Synchronous Geared; Synchronous
- AC Motor Features: Reversible
- AC Voltage & Frequency: 230, 240 V; 208-230/240V 60Hz
- Output Power: 0.0096
from Tecnotion
The QTR 160 series is the largest in diameter of the medium QTR motor range-the smallest motor measures just 17 mm in height, with a continuous torque of 4.2 Nm. The largest motor excels with a peak torque of 155.3 Nm. Power and size make that the QTR 160 Series motors can often replace large... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 325 VDC / 565 VDC; 120V/60Hz; 208-230/240V 60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
Synchronous AC Motor Standard 115/230VAC [See More]
- AC Construction: Synchronous
- Units: English
from RS Components, Ltd.
Synchronous reversible ACmotor,3rpm 240V [See More]
- AC Construction: Synchronous Geared; Synchronous
- AC Motor Features: Reversible
- AC Voltage & Frequency: 230, 240 V; 208-230/240V 60Hz
- Output Power: 0.0096
from Tecnotion
The QTR 65 is the smallest torque motor in the Tecnotion torque motor range. This motor is optimized for small and low-voltage applications. With an outer diameter of 65mm and an inner diameter of 17 mm, this motor offers unique opportunities for small applications. The 65 Series is available in... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 565 VDC; 120V/60Hz; 208-230/240V 60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
Synchronous AC Motor Gearmotor 3 RPM 3W 115VAC [See More]
- AC Construction: Synchronous
- Continuous Torque: 4.4
- Output Power: 0.0040
- Gearbox Ratio: 240
from RS Components, Ltd.
Synchronous reversible ACmotor,4rpm 240V [See More]
- AC Construction: Synchronous Geared; Synchronous
- AC Motor Features: Reversible
- AC Voltage & Frequency: 230, 240 V; 208-230/240V 60Hz
- Output Power: 0.0096
from Tecnotion
The QTR 78 is the second size available in the Tecnotion QTR range. This series offers a continuous torque range from 0.57 to 4.47 Nm. The largest QTR 78-60 motor offers a peak torque of over 7.6Nm. To provide maximum flexibility and integration, the QTR 78 uses flying leads instead of a power... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 565 VDC; 120V/60Hz; 208-230/240V 60Hz
- Commutation: Brushless
- Phase: Three-phase
from DigiKey
Synchronous AC Motor Gearmotor 0.1 RPM 3W 115VAC [See More]
- AC Construction: Synchronous
- Continuous Torque: 4.4
- Output Power: 0.0040
- Gearbox Ratio: 120
from RS Components, Ltd.
MOTOR [See More]
- AC Construction: Synchronous Geared; Synchronous
- Output Power: 0.0096
- AC Voltage & Frequency: 230 V; 208-230/240V 60Hz
- Gear Type: Spur; Spur
from DigiKey
Synchronous AC Motor Gearmotor 0.24 RPM 3W 115VAC [See More]
- AC Construction: Synchronous
- Continuous Torque: 4.4
- Output Power: 0.0040
- Gearbox Ratio: 3000
from RS Components, Ltd.
Synch reversible AC motor,10rpm 240V [See More]
- AC Construction: Synchronous Geared; Synchronous
- AC Motor Features: Reversible
- AC Voltage & Frequency: 230, 240 V; 208-230/240V 60Hz
- Output Power: 0.0096
from Johnson Electric North America, Inc.
Johnson Electric provides AC synchronous motors for rotary applications with speed up to 720 rpm and linear applications with speed up to 8.33 mm/s. Offered in various performance ranges and voltage up to 230V, rotary synchronous motors can deliver running torque up to 35 cNm and linear synchronous... [See More]
- AC Construction: Synchronous
- Shaft Size: 0.059
- AC Voltage & Frequency: 50 / 60
- Diameter / Width: 0.79
from Hymark/Kentucky Gauge
AC reversible motor offers a wide selection with reliable performance, forward or reverse operation. Variable AC power input options. Output 6W up to 90W. CE (EMC & LVD), UL, CCC Certified. Wide ranges of model work with magnetic brake, control circuits and speed reducer (motor with pinion... [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 120V/60Hz; 208-230/240V 60Hz
- AC Motor Features: Reversible
from Autotrol Corporation
Permanent magnet synchronous motor used in applications requiring up to 125 ounce-inches (9,000 gm.-cm.) of dynamic torque. Cut metal or molded plastic gear trains, different output shafts and clutches offer flexibility to meet a variety of application requirements. Our newest gearmotor for timing... [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz
- AC Motor Features: Multi-speed; Reversible
from Kollmorgen Corporation
Our high pole count motors naturally turn at slower speeds (72 or 60 rpm). They only need a resistor-capacitor (RC) network to operate from single-phase AC utility power. These motors provide the highest torque in an AC synchronous motor for loads that operate at 72 rpm or slower. They are available... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 120V/60Hz; 208-230/240V 60Hz
- Commutation: Brushless
- Phase: Single-phase
from ARC Systems, Inc.
Hysteresis Synchronous Motors are designed to meet both Military and Commercial requirements. These AC Motors range from size 8 to 44. This type motor is utilized where constant speed and smooth operation are necessary. [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 120V/60Hz; 400Hz / Aerospace
- Units: English
from Island Components Group
Hysteresis motors are designed to produce smooth and constant velocity. These motors have been used in many military and commercial applications, and almost anywhere reliable, consistent operation is needed. All motors from Island Components have been enhanced through the use of our motor... [See More]
- AC Construction: Synchronous
- Units: English
- Output Power: 0.0046
- Shaft Speed: 8000
from Johnson Electric Group
Johnson Electric provides AC synchronous motors for rotary applications with speed up to 720 rpm and linear applications with speed up to 8.33 mm/s. Offered in various performance ranges and voltage up to 230V, rotary synchronous motors can deliver running torque up to 35 cNm and linear synchronous... [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 24 V
- Units: Metric
from item America, LLC
Precision from the first second! item servomotors with absolute encoder don ’t require a homing run each time the system is started up. A homing run is only carried out during initial set-up. The integrated capacitive multiturn absolute encoder helps the Controller keep track of how many... [See More]
- AC Construction: Synchronous
- Phase: Three-phase
- AC Voltage & Frequency: 320 V
- Output Power: 0.7371
from M.H. Rhodes/Cramer Company
The Cramer line of AC Permanent Magnet Motors offers application solutions requiring fast starts, fast stops where coasting of load is undesirable and low wattage operating power consumption. Valve drive assemblies. Automatic teller machines. POP displays. Timing control systems [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 24 VAC; 120V/60Hz; 208-230/240V 60Hz
- Continuous Torque: 18.8
from Thor Power Corporation
Our Permanent Magnet Alternating Current (PMAC) three-phase power device is slotless, sensorless with permanent magnet rotor, providing smooth variable speed over the complete rpm range from start-up to 30,000rpm, unlike the ratcheting trapezoidal step function of a Brushless Direct Current (BLDC). [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 120V/60Hz; 208-230/240V 60Hz; International Voltages; 400Hz / Aerospace
- Commutation: Brushless
- Phase: Three-phase
from Anaheim Automation, Inc.
All motor bodies come with a round body and a square flange [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 120V/60Hz
- AC Motor Features: Reversible
from Hymark/Kentucky Gauge
AC reversible motor offer a wide selection with reliable performance, forward or reverse operation. Variable AC power input options. Output 6W up to 90W. CE (EMC & LVD), UL, CCC Certified. Wide ranges of model work with magnetic brake, control circuits and speed reducer (motor with pinion shaft,... [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 120V/60Hz; 208-230/240V 60Hz
- AC Motor Features: Reversible
from Autotrol Corporation
Permanent magnet synchronous motor used in applications requiring up to 125 ounce-inches (9,000 gm.-cm.) of dynamic torque. Cut metal or molded plastic gear trains, different output shafts and clutches offer flexibility to meet a variety of application requirements. Our most popular low cost... [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz
- AC Motor Features: Multi-speed; Reversible
from Kollmorgen Corporation
ST and SN Series synchronous motors provide high performance in three frame sizes, NEMA 23, 34 and 42 (60, 90 and 110 mm). Resistor-capacitor kits are also available. These motors are driven economically from standard AC line voltage and the synchronous speed is related to the line frequency. [See More]
- AC Construction: Synchronous
- AC Motor Features: Reversible
- AC Voltage & Frequency: 120V/60Hz
- Continuous Torque: 11.6 to 93.8
from ARC Systems, Inc.
Hysteresis Synchronous Motors are designed to meet both Military and Commercial requirements. These AC Motors range from size 8 to 44. This type motor is utilized where constant speed and smooth operation are necessary. [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 120V/60Hz; 400Hz / Aerospace
- Units: English
from M.H. Rhodes/Cramer Company
Cramer's AC Hysteresis Motor is a shaded pole, synchronous-type that provides smooth, quiet performance and allows operation to a stall condition without damage or increase in temperature rise. External rear bearing provides stability, strength and allows for a double-ended output shaft that can be... [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 24 VAC; 120V/60Hz; 208-230/240V 60Hz; International Voltages
- Continuous Torque: 1.9
from Autotrol Corporation
A powerful permanent magnet synchronous motor in a very compact package. Delivers 500 ounce-inches of torque at 1 RPM. Speeds available from 1/2 RPM to 240 RPM. Suitable for many instrument and industrial applications. AC Gear Motor - Model 500 Features. Compact package. High torque at low profile. [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz; International Voltages
- AC Motor Features: Multi-speed; Reversible
from Kollmorgen Corporation
These synchronous motors are available in UL Listed versions suitable for use in Class I, Division 1, Group D hazardous locations. They provide torque up to 1,500 oz-in (1059 N-cm) and are available in NEMA 42 and 66 frame sizes (110 mm and 170 mm). Features. Motor torque up to 1,500 oz-in (1059... [See More]
- AC Construction: Synchronous
- AC Voltage & Frequency: 120V/60Hz; 208-230/240V 60Hz
- Commutation: Brushless
- Phase: Single-phase
from ARC Systems, Inc.
Hysteresis Synchronous Motors are designed to meet both Military and Commercial requirements. These AC Motors range from size 8 to 44. This type motor is utilized where constant speed and smooth operation are necessary. [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 120V/60Hz; 400Hz / Aerospace
- Units: English
from Autotrol Corporation
Autotrol ’s New High Performance Gear Motor. Permanent magnet synchronous gear motor used in applications requiring up to 525 ounce inches of dynamic torque. It is available with either molded plastic gearing or powdered metal and heat treated gears. There are four standard output shaft... [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz
- Continuous Torque: 32.8
from ARC Systems, Inc.
Hysteresis Synchronous Motors are designed to meet both Military and Commercial requirements. These AC Motors range from size 8 to 44. This type motor is utilized where constant speed and smooth operation are necessary. [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 400Hz / Aerospace
- Units: English
from Autotrol Corporation
Instrument grade permanent magnet synchronous motor is electrically reversible and is precision built for long life applications. Available in speeds from 1 RPM to 240 RPM. Also available without gearhead as direct drive motor...consult factory. AC Gear Motor - Model 550 Features. Electrically... [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz; International Voltages
- AC Motor Features: Multi-speed; Reversible
from ARC Systems, Inc.
Hysteresis Synchronous Motors are designed to meet both Military and Commercial requirements. These AC Motors range from size 8 to 44. This type motor is utilized where constant speed and smooth operation are necessary. [See More]
- AC Construction: Synchronous
- Phase: Single-phase
- AC Voltage & Frequency: 120V/60Hz; 400Hz / Aerospace
- Units: English