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 Length Width Depth Dimensions Current Rating Core Construction Series Standards Met
RS Stock No. 718-981
Mfr. Part No.22N28-208E.204
BrandPortescap
$125.90
Each
units
18 V dc - 3.8 W 6300 rpm 2mm 7 mNm 32mm - - 22 (Dia.) x 32 mm 260 mA Ironless - -
RS Stock No. 262-2135
Mfr. Part No.134384
BrandMaxon
$102.53
Each
units
6 V dc Brushed 5 W 6720 rpm - 0.633 Ncm - - - - - Ironless - -
RS Stock No. 364-0500
Mfr. Part No.22V28-213E.201
BrandPortescap
$120.21
Each
units
12 V dc - 4.5 W 7600 rpm 2mm 8.48 mNm 34.4mm - - 22 (Dia.) x 34.4 mm 1.15 A Ironless - -
RS Stock No. 262-2163
Mfr. Part No.134386
BrandMaxon
$94.06
Each
units
24 V dc Brushed 5 W 6552 rpm - 0.615 Ncm - - - - - Ironless - -
RS Stock No. 789-3023
Mfr. Part No.89830012
BrandCrouzet
$288.47
Each
units
24 V dc Brushed 102 W 3000 rpm 8mm 180 mNm 130.5mm - - 63 (Dia.) x 130.5 mm 17.2 A Permanent Magnet - -
RS Stock No. 225-9585
BrandRS PRO
$549.99
Each
units
37.5 V dc Brushed 200 W 3000 rpm 10mm 64 Ncm 60mm - - 152 (Dia.) x 60 mm 7.3 A - - RoHS
RS Stock No. 718-969
Mfr. Part No.22N28-216E.204
BrandPortescap
$77.60
Each
units
6 V dc - 3.8 W 5600 rpm 2mm 8.4 mNm 32mm - - 22 (Dia.) x 32 mm 830 mA Ironless - -
RS Stock No. 192-5938
Mfr. Part No.16N28-207E.201
BrandPortescap
$87.31
Each
units
12 V dc - 2.3 W 10800 rpm 1.5mm 2.4 mNm 28mm - - 16 (Dia.) x 28 mm 240 mA Ironless - -
RS Stock No. 323-4846
Mfr. Part No.110045
BrandMaxon
$106.87
Each
units
12 V dc Brushed 2 W 12300 rpm 1.5mm 2.17 mNm 25.4mm - - 16 (Dia.) x 25.4 mm 243 mA Ironless - -
RS Stock No. 881-4481
Mfr. Part No.DMN37BB
BrandNidec
$33.33
Each
units
24 V dc Brushed 7.2 W 4700 rpm 5mm 14.7 mNm 76.2mm 38.4mm - 38.4 (Dia.) x 76.2 mm 530 mA - DMN37 RoHS
RS Stock No. 409-5298
Mfr. Part No.82860004
BrandCrouzet
$45.32
Each
units
4.5 → 30 V dc - 3 W 3700 rpm 2mm 30 mNm 44.6mm - - 32.2 (Dia.) x 44.6 mm 260 mA Iron Core - -
RS Stock No. 774-0525
Mfr. Part No.351007
BrandMaxon
$172.56
Each
units
12 V Brushless 5 W 5210 rpm 2mm 7.5 mNm 21.4mm - - 20 (Dia.) x 21.4 mm 648 mA - - -
RS Stock No. 881-4478
Mfr. Part No.DMN29BB
BrandNidec
$17.04
Each
units
24 V dc Brushed 3 W 3700 rpm 2.5mm 7.8 mNm 54mm 29mm - 29 (Dia.) x 54 mm 210 mA - DMN29 RoHS
RS Stock No. 122-4624
Mfr. Part No.LT2020A-050K05
BrandPiezoMotor
$1,708.50
Each
units
48 V - 10 mW/Hz 0 → 10 mm/s - 20 (Stall Force) N, 22 (Holding Force) N 22mm 10.8mm 21mm 22 x 10.8 x 21 mm - - Piezo LEGS -
RS Stock No. 752-1989
BrandRS PRO
$36.54
Each
units
4.5 → 15 V - 7 W 7300 rpm 6mm 114 gcm 73.6mm 37 (Dia.)mm - 37 (Dia.) x 73.6 mm 840 mA Metal - -
RS Stock No. 752-1961
BrandRS PRO
$68.45
Each
units
6 → 15 V - 7.98 W 14.5 rpm 6mm 78.4 gcm 80.5mm 32 (Dia.)mm - 32 (Dia.) x 80.5 mm 990 mA Metal - -
RS Stock No. 420-4975
Mfr. Part No.242369
BrandMaxon
$723.82
Each
units
24 V dc Brushless 120 W 5900 rpm 6mm 10.84 Ncm 70mm - - 40 (Dia.) x 70 mm - Ironless - -
RS Stock No. 323-4896
Mfr. Part No.110120
BrandMaxon
$91.33
Each
units
9 V dc Brushed 5 W 8770 rpm 2mm 6.42 mNm 31.9mm - - 22 (Dia.) x 31.9 mm 673 mA Ironless - -
RS Stock No. 494-7060
Mfr. Part No.80080005
BrandCrouzet
$635.28
Each
units
24 V dc Brushless 80 W 3250 rpm 8mm 0.2 Nm 142.5mm 57mm 57mm 142.5 x 57 x 57 mm 6 A - - -
RS Stock No. 253-2537
Mfr. Part No.35NT2R 82 426SP.77
BrandPortescap
$435.99
Each
units
32 V dc - 102 W 5900 rpm 5mm 115 mNm 57.2mm - - 35 (Dia.) x 57.2 mm 2.3 A Ironless - -
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