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. 238-9759
BrandRS PRO
HK$66.25
Each
units
4.5 → 15 V dc - 21.2 W 13360 rpm 3.18mm 154.4 gcm 50mm - - 35.8 (Dia.) x 50 mm 2.85 A Iron Core - -
RS Stock No. 409-5349
Mfr. Part No.82850001
BrandCrouzet
HK$919.44
Each
units
12 V dc Brushed 32.5 W 3100 rpm 6mm 100 mNm 112.6mm - - 42.21 (Dia.) x 112.6 mm 4.25 A Iron Core - -
RS Stock No. 873-4782
Mfr. Part No.1524T006SR
BrandFaulhaber
HK$693.88
Each
units
6 V dc Brushed 1.72 W 3860 rpm 1.5mm 2.9 mNm 31.9mm - - 15 (Dia.) x 31.9 mm 560 mA Metal 1524 -
RS Stock No. 181-7577
Mfr. Part No.B7744E742B5F
BrandMaxon
HK$706.70
Each
units
12 V Brushed 10.4 W 5260 RPM, 7140 RPM 2mm 12.5 mNm 32mm 22mm - 22 Dia. x 32 mm 810 mA - DCX -
RS Stock No. 192-5922
Mfr. Part No.16N28-210E.201
BrandPortescap
HK$551.00
Each
units
7.5 V dc - 2.3 W 9700 rpm 1.5mm 2.9 mNm 28mm - - 16 (Dia.) x 28 mm 420 mA Ironless - -
RS Stock No. 420-5158
Mfr. Part No.242478
BrandMaxon
HK$1,773.19
Each
units
24 V dc Brushed 15 W 5860 rpm 4mm 3.67 Ncm 61.5mm - - 32 (Dia.) x 61.5 mm - Ironless - -
RS Stock No. 324-2954
Mfr. Part No.82890001
BrandCrouzet
HK$1,760.01
Each
units
24 V dc Brushed 90 W 3200 rpm 8mm 270 mNm 127.5mm - - 63.2 (Dia.) x 127.5 mm 5 A Iron Core - -
RS Stock No. 752-1958
BrandRS PRO
HK$242.25
Each
units
4.5 → 15 V - 11 W 5216 rpm 6mm 206 gcm 86.6mm 37 (Dia.)mm - 37 (Dia.) x 86.6 mm 1.26 A Metal - -
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. 752-1989
BrandRS PRO
HK$194.75
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. 441-0394
Mfr. Part No.BLDC48-12L-037
HK$1,431.00
Each
units
24 V dc Brushless 12 W 4550 rpm 5.99mm 0.03 Nm 36mm - - 54 (Dia.) x 36 mm 1.33 A - - -
RS Stock No. 183-0056
Mfr. Part No.80350001
BrandCrouzet
HK$7,984.77
Each
units
24 V dc Brushless 600 (Output) W 2310 RPM 14mm 2.5 nm 170.6mm 75mm 145mm 170.6 x 75 x 145 mm 34.5 A - - -
RS Stock No. 892-9101
Mfr. Part No.16N78-208E.1001
BrandPortescap
HK$633.67
Each
units
24 V dc Brushed 4.9 W 8200 rpm 1.5mm 6.3 mNm 35.5mm 16mm - 16 (Dia.) x 35.5 mm 230 mA Metal - -
RS Stock No. 715-112
Mfr. Part No.82800043
BrandCrouzet
HK$896.73
Each
units
24 V dc Brushed 16 W 3100 rpm - 75 mNm - - - - - Iron Core - -
RS Stock No. 849-6250
Mfr. Part No.269.4102.2B.00
BrandDOGA
HK$2,046.63
Each
units
12 V dc - 236 W 3000 rpm - 0.5 Nm - - - - 20 A - - -
RS Stock No. 102-3517
BrandRS PRO
HK$1,577.97
Each
units
12 V Brushed 220 W 3000 rpm 7.93mm 0.7 Nm 180mm 90 (Dia.)mm - 90 (Dia.) x 180 mm - - - -
RS Stock No. 892-9136
Mfr. Part No.30GT2R82-234E.4
BrandPortescap
HK$2,814.88
Each
units
35 V dc Brushed 82 W 8600 rpm 5mm 92 mNm 81.2mm 30mm - 30 (Dia.) x 81.2 mm 2.5 A Ironless - -
RS Stock No. 181-7586
Mfr. Part No.B78ADC65FD68
BrandMaxon
HK$5,433.55
Each
units
24 V Brushed 71.7 W 9690 RPM, 10700 RPM 3mm 2.97 mNm 101.1mm 26mm - 26 Dia. x 101.1 mm 2.76 A - DCX -
RS Stock No. 225-9541
BrandRS PRO
HK$1,071.56
Each
units
14.5 V dc Brushed 41 W 3000 rpm 6mm 13 Ncm 37.7mm - - 120 (Dia.) x 37.7 mm 6.9 A - - RoHS
RS Stock No. 122-0031
Mfr. Part No.80280013
BrandCrouzet
HK$4,705.77
Each
units
10 to 36 V Brushless 84 W @ 12 V, 199 W @ 24 V, 251 W @ 32 V 800 rpm @ 12 V, 1900 rpm @ 24 V, 2400 rpm @ 32 V 8mm 1000 mNm 57.2mm 137mm 57.2mm 57.2 x 137 x 57.2 mm 12.5 A @ 32 V, 15 A @ 12 V, 15 A @ 24 V - 80280 TNi21 -
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