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. 420-4975
Mfr. Part No.242369
BrandMaxon
HK$4,102.96
Each
units
24 V dc Brushless 120 W 5900 rpm 6mm 10.84 Ncm 70mm - - 40 (Dia.) x 70 mm - Ironless - -
RS Stock No. 921-3678
Mfr. Part No.116514-13
HK$1,470.20
Each
units
24 V Brushed 536 W 12630 → 16167 rpm - - 198.63mm 146.84 (Dia.)mm - 146.84 (Dia.) x 198.63 mm 16.1 → 20.9 A - 116 CSA Certified, UL Recognized Category PRGY2 (E47185)
RS Stock No. 873-4798
Mfr. Part No.2224U024SR
BrandFaulhaber
HK$825.71
Each
units
24 V dc Brushed 3.88 W 4300 rpm 2mm 6.6 mNm 32.3mm - - 22 (Dia.) x 32.3 mm 250 mA Metal 2224 -
RS Stock No. 873-4809
Mfr. Part No.2657W024CXR
BrandFaulhaber
HK$1,792.64
Each
units
24 V dc Brushed 45.7 W 5110 rpm 4mm 40 mNm 69.4mm - - 26 (Dia.) x 69.4 mm 1.2 A Graphite 2657 -
RS Stock No. 238-9692
BrandRS PRO
HK$17.47
Each
units
1.5 → 3 V dc - 1.21 W 8200 → 14000 rpm 2mm 10.4 gcm 38mm - - 21 (Dia.) x 38 mm 960 mA Iron Core - -
RS Stock No. 472-1284
Mfr. Part No.005203
HK$2,066.17
Each
units
22.5 V dc Brushed 94 W 3000 rpm 6mm 30 Ncm 37.7mm - - 120 (Dia.) x 37.7 mm 6.9 A - - -
RS Stock No. 420-5209
Mfr. Part No.110127
BrandMaxon
HK$561.92
Each
units
36 V dc Brushed 5 W 9800 rpm 2mm 6.15 mNm 31.9mm - - 22 (Dia.) x 31.9 mm 181 mA Ironless - -
RS Stock No. 921-1329
Mfr. Part No.3242G024BX4
BrandFaulhaber
HK$2,244.34
Each
units
24 V Brushless 45 W 6000 rpm 5mm 54 mNm - 32 (Dia.)mm 72.4mm 32 (Dia.) x 72.4 mm 1.55 A - 3242 BX4 -
RS Stock No. 892-9209
Mfr. Part No.32BF 3C K 11
BrandPortescap
HK$1,766.63
Each
units
12 V dc Brushless 40 W 13600 rpm 3mm 13 mNm 21.6mm 30mm - 30 (Dia.) x 21.6 mm 1.5 A Ironless - -
RS Stock No. 321-3186
BrandRS PRO
HK$307.84
Each
units
12 V dc - 36.88 W 4289 rpm 6.35mm 82.08 gcm 69mm - - 51.8 (Dia.) x 69 mm 5.28 A Iron Core - -
RS Stock No. 445-9024
Mfr. Part No.DN22M-12
BrandCanon
HK$306.85
Each
units
12 V dc Brushed 1.3 W 5400 rpm 2mm 2.45 mNm 32.8mm 22mm 18mm 32.8 x 22 x 18 mm 190 mA Iron Core - -
RS Stock No. 536-6024
BrandRS PRO
HK$481.79
Each
units
24 V dc Brushless - 4000 rpm 5mm 0.19 Nm 41mm 42mm 42mm 41 x 42 x 42 mm 5.4 A - - -
RS Stock No. 495-079
Mfr. Part No.343015
BrandMaxon
HK$13,614.14
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. 420-5186
Mfr. Part No.236646
BrandMaxon
HK$1,746.05
Each
units
18 V dc Brushed 15 W 5270 rpm 4mm 37.5 mNm 62.9mm - - 32 (Dia.) x 62.9 mm 1.21 A Ironless - -
RS Stock No. 892-8757
BrandRS PRO
HK$597.94
Each
units
24 V dc Brushless - 4600 rpm 6.2mm 0.021 Nm 55.7mm 22mm - 22 (Dia.) x 55.7 mm 1.1 A - - CE, 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 - - -
RS Stock No. 892-8760
BrandRS PRO
HK$1,023.43
Each
units
24 V dc Brushless - 4500 rpm 4mm 0.066 Nm 54mm 33mm - 33 (Dia.) x 54 mm 1.45 A - - CE, RoHS
New
RS Stock No. 181-7546
Mfr. Part No.397172
BrandMaxon
HK$1,318.39
Each
units
24 V Brushless 70 W 10000 RPM 4mm 128 mNm, 1460 (Stall) mNm 26.7mm 42.8mm - 42.8 Dia. x 26.7 mm 39.5 A - - -
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. 881-4478
Mfr. Part No.DMN29BB
BrandNidec
HK$114.11
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