DC Motors

DC motors are the most widely used type of motor with initial costs typically less than AC systems for low-power units. DC motors can be used for a wide range of applications from small tools and appliances, through to electric vehicles, lifts and hoists. DC Motors speed can be controlled by varying the supply voltage and are available in a wide range of voltages, however the most popular type are 12 V and 24 V, with some of the advantages being:

  • Easy installation
  • Speed control over a wide range
  • Quick Starting, Stopping, Reversing and Acceleration
  • High Starting Torque
  • Linear speed-torque curve

Types of DC Motors
There are two common types of DC motor, brushless and brushed. In both brushless and brushed motors, magnets drive the spinning (rotary) motion of the motor shaft.

  • Brushed Motors These are a more traditional type of motor and are typically used in cost-sensitive applications, where control systems are relatively simple, such as in consumer applications and more basic industrial equipment.
  • Brushless Motors Brushless motors alleviate some of the issues associated with brushed motors such as short life span for high use applications and are mechanically much simpler in design (not having brushes). The advantages of brushless motors are longer life, little maintenance and high efficiency (85-90%). These types of motors are generally used in speed and positional control with applications such as fans, pumps and compressors, where reliability and ruggedness are required.

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Description Price Supply Voltage DC Motor Type Power Rating Output Speed Shaft Diameter Maximum Output Torque Gearhead Type Length Gear Ratio Width Depth Dimensions Current Rating Core Construction
RS Stock No. 881-4475
Mfr. Part No.DMN29BA
BrandNidec
TWD435.00
Each
units
12 V Brushed 3 W 3700 rpm 2.5mm 7.8 mNm - 54mm - 29mm - 29 (Dia.) x 54 mm 420 mA -
RS Stock No. 881-4484
Mfr. Part No.DMN37KA
BrandNidec
TWD926.00
Each
units
12 V Brushed 9.2 W 3600 rpm 5mm 24.5 mNm - 81.2mm - 38.4mm - 38.4 (Dia.) x 81.2 mm 1.2 A -
RS Stock No. 169-443
Mfr. Part No.HG16-240-AB-00
BrandNidec
TWD827.00
Each
units
12 V Brushless Geared - 55 rpm 3mm 45 mNm Planetary 40mm - 16mm - - 150 mA -
RS Stock No. 169-370
Mfr. Part No.HG16-030-AA-00
BrandNidec
TWD870.00
Each
units
6 V dc Brushless Geared - 310 rpm 3mm 24.5 mNm Planetary 36mm - 16mm - - 450 mA -
RS Stock No. 169-386
Mfr. Part No.HG16-030-AB-00
BrandNidec
TWD870.00
Each
units
12 V Brushless Geared - 310 rpm 3mm 24.5 mNm Planetary 36mm - 16mm - - 250 mA -
RS Stock No. 881-4510
Mfr. Part No.404157 GMPG
BrandNidec
TWD4,788.00
Each
units
24 V dc Brushed Geared 24.7 W 540 rpm - 50 Ncm Worm 139mm 56:4 43.4mm - 43.4 (Dia.) x 139 mm 2 A Permanent Magnet
RS Stock No. 881-4478
Mfr. Part No.DMN29BB
BrandNidec
TWD435.00
Each
units
24 V Brushed 3 W 3700 rpm 2.5mm 7.8 mNm - 54mm - 29mm - 29 (Dia.) x 54 mm 210 mA -
RS Stock No. 881-4497
Mfr. Part No.DMN29B36G100A
BrandNidec
TWD1,435.00
Each
units
12 V dc Brushed Geared 3 W 40 rpm 6mm 39 Ncm - 87.8mm 100:1 37mm - 37 (Dia.) x 87.8 mm 420 mA -
RS Stock No. 881-4513
Mfr. Part No.405667 GMPI
BrandNidec
TWD6,820.00
Each
units
24 V dc Brushed Geared 72 W 200 rpm 7mm 7.5 Nm, 12 Nm - 187mm 39.7:1 44 (Dia.)mm - 44 (Dia.) x 187 mm 3 A -
RS Stock No. 169-392
Mfr. Part No.HG16-060-AA-00
BrandNidec
TWD870.00
Each
units
6 V Brushless Geared - 175 rpm 3mm 34.3 mNm Planetary 40mm - 16mm - - 400 mA -
RS Stock No. 881-4526
Mfr. Part No.402781 GMAG
BrandNidec
TWD6,489.00
Each
units
24 V dc Brushed Geared 2.56 W 55 rpm 6mm 50 Ncm Spur 83.5mm 109:1 33mm - 33 (Dia.) x 83.5 mm 500 mA Permanent Magnet
RS Stock No. 881-4501
Mfr. Part No.DMN37K50G72B
BrandNidec
TWD1,913.00
Each
units
24 V dc Brushed Geared 9.2 W 52 rpm 6.8mm 1 Nm - 112.8mm 50:1 50mm - 50 (Dia.) x 112.8 mm 600 mA -
RS Stock No. 881-4472
Mfr. Part No.DMN37BA
BrandNidec
TWD851.00
Each
units
12 V Brushed 7.2 W 4700 rpm 5mm 14.7 mNm - 76.2mm - 38.4mm - 38.4 (Dia.) x 76.2 mm 1.01 A -
RS Stock No. 169-421
Mfr. Part No.HG16-120-AB-00
BrandNidec
TWD870.00
Each
units
12 V Brushless Geared - 85 rpm 3mm 49 mNm Planetary 40mm - 16mm - - 180 mA -
RS Stock No. 169-550
Mfr. Part No.LC20G-101 1/1500
BrandNidec
TWD2,991.00
Each
units
12 V Brushless Geared - 6000 rpm 3mm 6.33 mNm - 55.4mm - 20mm - - 110 mA -
RS Stock No. 881-4494
Mfr. Part No.DMN37K50G18A
BrandNidec
TWD1,864.00
Each
units
12 V dc Brushed Geared 9.2 W 200 rpm 6.8mm 0.35 Nm - 112.8mm 50:1 50mm - 50 (Dia.) x 112.8 mm 1.2 A -
RS Stock No. 881-4488
Mfr. Part No.DMN37KB
BrandNidec
TWD926.00
Each
units
24 V Brushed 9.2 W 3600 rpm 5mm 24.5 mNm - 81.2mm - 38.4mm - 38.4 (Dia.) x 81.2 mm 600 mA -
RS Stock No. 881-4481
Mfr. Part No.DMN37BB
BrandNidec
TWD851.00
Each
units
24 V Brushed 7.2 W 4700 rpm 5mm 14.7 mNm - 76.2mm - 38.4mm - 38.4 (Dia.) x 76.2 mm 530 mA -
RS Stock No. 169-487
Mfr. Part No.LC20G-101 1/25
BrandNidec
TWD4,190.00
Each
units
12 V Brushless Geared - 6000 rpm 3mm 6.33 mNm - 55.4mm - 20mm - - 110 mA -
RS Stock No. 881-4529
Mfr. Part No.404327 GMAG
BrandNidec
TWD5,119.00
Each
units
24 V dc Brushed Geared 2.84 W 65 rpm 6mm 50 Ncm Spur 77.2mm 109:1 24.5mm - 24.5 (Dia.) x 77.2 mm 400 mA Permanent Magnet