A DC (direct current) motor has two main parts. The fixed element, the stator, generates a magnetic field through the use of permanent magnets or an electric current passing through windings. The rotor is fed by the brush/commutator assembly. DirectIndustry uses the term DC motor to refer to brushed types only.
There are two main types of brushed DC motors:
- Separately excited motors use voltage changes to regulate speed, independent of the load. Generally, the constant stator field is created by permanent magnets. Thus, torque depends only on the rotor field, i.e., the current intensity in the windings.
Speed can be varied considerably by adjusting voltage via a resistor or other control mechanism. This motor provides high torque at low power, useful in machine tools or lift devices. At low power, it often is used in control applications with speed adjustment.
- Series-wound motors have their stator and rotor windings connected in series, the same current passing through both. This provides high initial torque. These motors work well at high power (one to 10 MW). Low-power applications include starter motors for internal combustion engines.
- High initial torque
- Speed proportional to applied voltage
- Linear current/torque ratio
- Servo use with encoder
- High maintenance cost and limited life
- Brushes cause dust and sparks
- Limited speed (1000-5000 rpm)
- Noise and inefficiency from friction
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DC electric micro-motor 4 - 8 mNm FAULHABER
In introducing the new DC-Micromotors Series 1336…CXR and 1741…CXR, FAULHABER has further expanded its range of miniature drives in the medium power segment. The graphite-commutated motors are based on the proven concept of the CXR series and feature premium-quality materials. The...
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DC electric motor with ironless rotor ø 10 mm, 1.5 - 12 V, 1.5 W | DCX 10 series maxon motor
maxon DCX motors feature unrivaled power density (torque per volume) and absolutely quiet running. The robust engineering,...
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DC electric micro-motor CROUZET
DCmind: DC direct-drive brush motors Ø 42 mm - 20 W to 51 W Ø 63 mm...
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Brushless DC electric motor 19 - 39 oz-in | BOF 16 MOOG
Quiet, Brushless Motors BOF motors provide smooth, efficient operation at high speeds. The brushless design ensures low audible noise and long life. Utilizing bonded ferrite magnets, these brushless motors provide excellent performance and value demonstrated by their low cost to high torque ratio. They are available in two lengths with a variety of options, including custom windings to achieve different...
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Brushless DC electric motor 590 mNm, 120 VDC | E15IHM-120-001 Johnson Electric
The EC motor series provides a platform of brushless motors for engineers designing products ranging from HVAC valves to power tools. Automotive applications...
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Brushless DC electric motor 56 - 370 W Schneider Electric Motion Deutschland
Schneider Electric brushless DC drive systems are an economical solution for many motion tasks. With compact and powerful motors and matching drives, they offer a wide range of options for appliances...
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Slotless brushless DC electric motor AMETEK Precision Motion Control - Dynamic Fluid So
AMETEK slotless brushless motor designs offer many advantages over conventional slotted stator construction. Negligible magnetic cogging provides improved servo efficiency...
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Permanent magnet DC electric motor 0.3 - 4.5 Nm, IP54 | BC Series Bonfiglioli
The motors of the BC series are the simple, proven and economical solution to the requirements of DC drives. The materials and the design concepts exploited...
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Permanent magnet DC electric motor 0.06 - 0.75 kW | MBT Series LEROY-SOMER
Low voltage enclosed continuous current (DC) motors MBT : - Excitation by permanent magnets. - Power 0.06 to 0.75 kW. - IP 40 protection (MBT 65-82) - IP 40 - IP 20 (MBT 1141) MBT 65 : 2 poles...
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Brushless DC electric motor 30 - 120 W, 100 - 4.000 min-1 | BLE Series Orientalmotor
Compact and versatile New brushless DC motor from Oriental Motor, also for vertical use Oriental Motor presents another brushless DC motor, which, equipped with a brake, also carries out vertical movements. The BLE series supplements the existing product range in this area. With the expansion, the company now responds to the growing demand for compact,...
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Brushless DC electric micro-motor 2.8 - 3.7 mNm, ø 16 mm | 16BHS 2A series Portescap
Highlights - Slotless - 2-wire - 2 Poles Application - Medical Devices - Breathing...
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Brushless DC electric micro-motor 7.5 - 40 W, 12 - 24 V, ø 20 - 60 mm CANON USA
Canon's brushless motors are compact in size and provide high output power. Two types...
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DC electric servo-motor 0.25 - 1.48 Nm | 1000 Series Aerotech
The 1000 series motors are Aerotech’s high-performance brush-type rotary DC servomotors. These motors are designed for a variety of general and high-performance motion control applications. Custom mechanical or electrical configurations are also available with minimal lead...
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Brushless DC electric servo-motor with integrated motion controller PSM SCHUNK
The PSM servo-motor is electrically actuated by the fully integrated control and power electronics. In this way, the module does not require any additional external control units.The...
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DC electric servo-motor 23 - 500 W SANYO DENKI EUROPE
Mounting size : 42 to 88 mm Output Power : 23 to 500 W Protection...
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DC electric motor 12 - 180 V | BISON 32 series BISON
Motors are available in 12, 24, 90, or 180 voltages. Limited models available with a C-Face adapter. Bearings: Double shielded ball. Shafts: Carbon steel. Mounting:...
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Large DC electric motor 25 - 1 400 kW | DMI ABB Motors Drives and Power Electronics
ABB's DMI generation of DC motors turns many ingrained concepts upside down Thanks to creative innovations and state-of-the-art computerized optimization of technical solutions that earlier were considered to have reached the "design limits", a completely new generation...
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The BLV Series is a high power, compact brushless motor and driver package with 200 W (1/4 HP) and 400 W (1/2 HP) motors. Driver input voltages are 24...
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Brushless DC electric motor 60 - 500 W, IP 54 | UE series WEG Antriebe
Voltage: 230 V (Supply Voltage Electronic Controller) Frequency:...
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DC electric servo-motor 0.3 - 8 Nm | RX series Parker SSD Drives Division
Description The RX DC motors, combined with RTS drives, provide an economical solution for any servo mechanism applications. They are particularly suitable for low power systems in clean atmospheres....
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Description Motornet DC is a brushless servomotor system with integrated electronics, supplied from a DC-bus voltage. Hybrid power, control and communications cables, a Power supply and Interface module complete the system and local I/O's can be connected directly to the motor. Ideally suited to multi-axis applications where a number of motors...
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DC electric servo-motor T series SANYO DENKI
DC Servo System SANMOTION T A DC servo system made up of highly responsive servo...
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DC electric servo-motor 50 - 140 VDC, 23 - 500 W | SANMOTION T Series SANYO DENKI America, Inc.
DC Servo System SANMOTION T A DC servo system made up of...
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Electronically commutated DC electric motor 45 - 90 W, 24 - 48 V | ECI-42 ebm-papst
Small drives are used in a wide range of applications today such as automation, packaging technology and laboratory and medical technology. It is then obvious that users demand very customised characteristics. Hence the drive experts from ebm-papst St. Georgen have developed a drive family with a completely new design. A new 42-mm diameter drive now supplements the...
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Brushless DC electric motor 24 V, 175W, ø 62 mm, 142 mm Bühler Motor GmbH
EC Motor 62 x 142, Type 1.25.058.4xx Diameter: 62 mm, Length: 142 mm This brushless...
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Brushless DC electric servo-motor max.100 W | BG 45 SI Dunkermotoren GmbH
Dunkermotoren has reduced the length of its 45mm frame size brushless DC motors with integral 4-quadrant speed controls (BG45SI) by 25%, while maintaining the same power and torque capabilities and motor efficiencies. The length of the BG45x15SI was reduced from 120mm to 88mm and the length of the more powerful BG45x30SI was reduced from 135mm to 103mm. Under the banner of ”everything on board”...
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Brushless DC electric motor 52 - 84 W, 0.125 - 0.2 Nm | PM42IE PARVALUX
FRAME SIZE 42 mm square in 3 different lengths TYPE Brushless DC motor with integral controller TORQUE 0.125 – 0.2 Nm MAX SPEED 4000 rpm VOLTAGE 24V DC CONNECTION Single 7-way in-line pluggable...
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Brushless DC electric motor 0.18 - 1 kW , 1 - 3 Nm (8.85 – 26.55 lb-in), IP44 | BL70 AMER
new series of brushless DC motor with six poles in NeFeBo magnets. The main feature is the absence of the brushes and so improved...
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Brushless DC electric motor 24 VDC, 52 W | SM42L61 Smart Motor Devices
SM42L61 is DC brushless three phase motor with Hall encoder. The main advantage of brushless DC motors is an absence of brushes and rubbing parts. Brushless motors are...
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Brushless DC electric motor 3.8 - 7 W | BR22 series Transmotec Sweden AB
Transmotec brushless dc motors covers a large range of miniature sized motors to heavy duty models. The designs include both round and square shaped motor bodies. All motors...
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DC electric motor LZ S/P RK Rose+Krieger
Drive unit LZ S/P The powerful drive units of the series LZ S (bar shaped) and LZ P (motor mounted in parallel) serve for the control of linear axes. Because of its very good price/performance...
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DC electric motor 10 000 kW, 110 - 800 VDC WEG
Description WEG DC motors are designed with the application of modern technology resulting in compact machines featuring excellent dynamic properties, meeting the most severe application in areas that include automation...
