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. 238-9715
BrandRS PRO
HK$50.24
Each
units
6 → 15 V dc - 5.75 W 10668 rpm 2.31mm 58.8 gcm 32.5mm - - 27.63 (Dia.) x 32.5 mm 770 mA Iron Core - -
RS Stock No. 499-1017
Mfr. Part No.80140004
BrandCrouzet
HK$3,065.62
Each
units
24 V dc Brushless 30 W 2200 rpm 6mm 140 mNm 73.2mm 57mm 57mm 73.2 x 57 x 57 mm 1.9 A - - -
RS Stock No. 443-4069
Mfr. Part No.203889
BrandMaxon
HK$779.00
Each
units
6 V dc Brushed 1.2 W 11100 rpm 1.5mm 1.32 mNm 20.5mm - - 13 (Dia.) x 20.5 mm 267 mA Ironless - -
New
RS Stock No. 183-0057
Mfr. Part No.80360001
BrandCrouzet
HK$8,309.73
Each
units
32 V dc Brushless 905 (Output) W 2160 RPM 14mm 4 nm 183.1mm 75mm 145mm 183.1 x 75 x 145 mm 42 A - - -
RS Stock No. 752-1964
BrandRS PRO
HK$308.75
Each
units
6 → 15 V - 7.98 W 112 rpm 6mm 78.4 gcm 73.9mm 32 (Dia.)mm - 32 (Dia.) x 73.9 mm 990 mA Metal - -
New
RS Stock No. 181-7542
Mfr. Part No.283833
BrandMaxon
HK$2,072.62
Each
units
12 V Brushless 8 W 20000 RPM 2mm 8.02 mNm, 21.1 (Stall) mNm 36mm 16mm - 16 Dia. x 36 mm 2.27 A - - -
RS Stock No. 298-5105
Mfr. Part No.MPM8-0002/CONT
BrandParvalux
HK$2,881.27
Each
units
- Brushed - 3000 rpm - - - 55mm 73.5mm - - - - -
New
RS Stock No. 181-7552
Mfr. Part No.539473
BrandMaxon
HK$1,846.23
Each
units
24 V Brushless 30 W 15000 RPM 4mm 37.3 mNm, 360 (Stall) mNm 42mm 30mm - 30 Dia. x 42 mm 14.6 A - - -
RS Stock No. 262-2135
Mfr. Part No.134384
BrandMaxon
HK$665.52
Each
units
6 V dc Brushed 5 W 6720 rpm - 0.633 Ncm - - - - - Ironless - -
RS Stock No. 236-1688
Mfr. Part No.82860502
BrandCrouzet
HK$516.54
Each
units
24 V dc Brushed 3.9 W 3700 rpm 2mm 7.7 mNm 44.6mm - - 32.2 (Dia.) x 44.6 mm 260 mA Iron Core - -
RS Stock No. 892-8773
BrandRS PRO
HK$1,578.61
Each
units
24 V dc Brushless - 3500 rpm 8mm 1.11 Nm 110.6mm 38.8mm - 38.8 (Dia.) x 110.6 mm 24 A - - CE, RoHS
RS Stock No. 849-6263
Mfr. Part No.321.1000.3B.00
BrandDOGA
HK$3,959.19
Each
units
24 V dc - 500 W 2700 rpm - 1.9 Nm - - - - 27 A - - -
RS Stock No. 892-8779
BrandRS PRO
HK$760.19
Each
units
36 V dc Brushless - 4000 rpm 8mm 0.35 Nm 96mm 57mm - 57 (Dia.) x 96 mm 5.5 A - - CE, RoHS
RS Stock No. 122-4623
Mfr. Part No.LL1011A-050K05
BrandPiezoMotor
HK$6,090.28
Each
units
48 V - 5 mW/Hz 0 → 15 mm/s - 6.5 (Stall Force) N, 7 (Holding Force) N 22mm 10.8mm 19mm 22 x 10.8 x 19 mm - - Piezo LEGS -
RS Stock No. 512-6028
Mfr. Part No.BLDC58-50 MK2
HK$1,780.00
Each
units
24 V dc Brushless 50 W 3650 rpm 5.99mm 0.17 Nm 62.1mm - - 68 (Dia.) x 62.1 mm 2.9 A - - -
RS Stock No. 443-4081
Mfr. Part No.203892
BrandMaxon
HK$757.64
Each
units
10 V dc Brushed 1.2 W 11200 rpm 1.5mm 1.28 mNm 20.5mm - - 13 (Dia.) x 20.5 mm 158 mA Ironless - -
New
RS Stock No. 183-0058
Mfr. Part No.80370001
BrandCrouzet
HK$8,634.69
Each
units
48 V dc Brushless 1470 (Output) W 2340 RPM 14mm 6 nm 208.1mm 75mm 145mm 208.1 x 75 x 145 mm 44 A - - -
RS Stock No. 752-1967
BrandRS PRO
HK$308.75
Each
units
6 → 15 V - 7.98 W 41 rpm 6mm 78.4 gcm 80.5mm 32 (Dia.)mm - 32 (Dia.) x 80.5 mm 990 mA Metal - -
RS Stock No. 881-4484
Mfr. Part No.DMN37KA
BrandNidec
HK$241.11
Each
units
12 V dc Brushed 9.2 W 3600 rpm 5mm 24.5 mNm 81.2mm 38.4mm - 38.4 (Dia.) x 81.2 mm 1.2 A - DMN37 RoHS
New
RS Stock No. 181-7543
Mfr. Part No.370427
BrandMaxon
HK$2,173.69
Each
units
24 V Brushless 50 W 10000 RPM 4mm 116 mNm, 157 (Stall) mNm 38.8mm 50mm - 50 Dia. x 38.8 mm 4.41 A - - -
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