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. 225-9585
BrandRS PRO
HK$2,126.35
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. 752-1973
BrandRS PRO
HK$363.36
Each
units
4.5 → 15 V - 21.2 W 6000 rpm 6mm 154.4 gcm 97.8mm 35.8 (Dia.)mm - 35.8 (Dia.) x 97.8 mm 2.85 A Metal - -
RS Stock No. 892-9108
Mfr. Part No.17N78-210E.1
BrandPortescap
HK$911.53
Each
units
12 V dc Brushed 3.1 W 8460 rpm 1.5mm 4.8 mNm 38.9mm 17mm - 17 (Dia.) x 38.9 mm 370 mA Metal - -
RS Stock No. 238-9759
BrandRS PRO
HK$64.26
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. 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. 789-3017
Mfr. Part No.89810008
BrandCrouzet
HK$1,296.75
Each
units
24 V dc Brushed 20 W 2920 rpm 6mm 50 mNm 98.4mm - - 42 (Dia.) x 98.4 mm 3.3 A Permanent Magnet - -
RS Stock No. 752-1955
BrandRS PRO
HK$266.00
Each
units
4.5 → 15 V - 11 W 5216 rpm 6mm 206 gcm 89.1mm 37 (Dia.)mm - 37 (Dia.) x 89.1 mm 1.26 A Metal - -
RS Stock No. 364-0500
Mfr. Part No.22V28-213E.201
BrandPortescap
HK$636.55
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. 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
RS Stock No. 179-2845
Mfr. Part No.MLD-075-ST
BrandCLM
HK$2,223.42
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 183-3580
Mfr. Part No.SF2421-10B41
HK$344.24
Each
units
24 V dc - - - 5mm 0.29 nm 72mm 42mm 42mm 72 x 42 x 42 mm 1 A - SF242 -
RS Stock No. 235-7904
BrandRS PRO
HK$1,821.38
Each
units
24 V dc Brushed 183 W 4100 rpm 8mm 370 mNm 145mm - - 54 (Dia.) x 145 mm 6.6 A Iron Core - -
RS Stock No. 892-9148
Mfr. Part No.35NT2R82-226E.1
BrandPortescap
HK$3,000.07
Each
units
28 V dc Brushed 91 W 6935 rpm 5mm 97 mNm 75.1mm 35mm - 35 (Dia.) x 75.1 mm 80 mA Ironless - -
RS Stock No. 495-108
Mfr. Part No.343016
BrandMaxon
HK$9,343.62
Each
units
12 → 50 V dc Brushless 60 W 12000 rpm - 5.4 Ncm 120mm 33mm 53mm 120 x 33 x 53 mm - - - -
RS Stock No. 102-3510
BrandRS PRO
HK$959.13
Each
units
24 V Brushed 94 W 3000 rpm 7.93mm 0.3 Nm 145mm 73 (Dia.)mm - 73 (Dia.) x 145 mm - - - -
RS Stock No. 494-7060
Mfr. Part No.80080005
BrandCrouzet
HK$4,578.27
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 - - -
New
RS Stock No. 181-7584
Mfr. Part No.B78ADC65DAF7
BrandMaxon
HK$5,100.78
Each
units
24 V Brushed 71.7 W 9690 RPM, 10700 RPM 3mm 0.91 mNm 92.2mm 26mm - 26 Dia. x 92.2 mm 2.76 A - DCX -
RS Stock No. 752-1983
BrandRS PRO
HK$223.25
Each
units
4.5 → 15 V - 7 W 7300 rpm 6mm 114 gcm 76.1mm 37 (Dia.)mm - 37 (Dia.) x 76.1 mm 840 mA Metal - -
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. 441-5361
Mfr. Part No.16G88-211E.1
BrandPortescap
HK$706.88
Each
units
12 V dc Brushed 5 W 8700 rpm 1.5mm 5.4 mNm 28mm - - 16 (Dia.) x 28 mm 420 mA Ironless - -