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 Gearhead Type Length Gear Ratio Dimensions Current Rating Width Depth Core Construction
RS Stock No. 238-9721
BrandRS PRO
SGD6.06
Each
units
3 → 7.2 V dc - 19.68 W 19000 rpm 2.3mm 375 gcm - 38mm - 27.7 (Dia.) x 38 mm 4.41 A - - Iron Core
RS Stock No. 238-9759
BrandRS PRO
SGD9.95
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. 535-0467
BrandRS PRO
SGD43.71
Each
units
2.8 V Hybrid, Permanent Magnet Stepper - - 5mm - - - - - 1.33 A - 33mm -
RS Stock No. 238-9692
BrandRS PRO
SGD3.17
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. 536-6030
BrandRS PRO
SGD113.22
Each
units
24 V dc Brushless - 4000 rpm 5mm 0.75 Nm - 100mm - 100 x 42 x 42 mm 20 A 42mm 42mm -
RS Stock No. 238-9715
BrandRS PRO
SGD7.90
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. 238-9737
BrandRS PRO
SGD7.03
Each
units
6 → 15 V dc - 7.98 W 9869 rpm 2.31mm 78.4 gcm - 38mm - 27.7 (Dia.) x 38 mm 990 mA - - Iron Core
RS Stock No. 834-7663
BrandRS PRO
SGD64.19
Each
units
12 V dc Brushed Geared 7.85 W 431 rpm 6mm 1482 gcm Planetary 73mm - 32 (Dia.) x 67.5 mm 990 mA 32 (Dia.)mm - Iron Core
RS Stock No. 901-3320
BrandRS PRO
SGD122.40
Each
units
24 V dc Brushed Geared - 23 rpm 6mm 600 mNm Spur 107.6mm 200:1 107.6 x 38 x 38 mm - 38mm 38mm Iron Core
RS Stock No. 535-0401
BrandRS PRO
SGD77.61
Each
units
2.8 V Hybrid Stepper - - 5mm - - - - - 1.68 A - 47mm -
RS Stock No. 321-3192
BrandRS PRO
SGD48.10
Each
units
12 V dc - 80.16 W 8311 rpm 6.35mm 92.13 mNm - 69mm - 51.8 (Dia.) x 69 mm 10.82 A - - Iron Core
RS Stock No. 535-0372
BrandRS PRO
SGD56.45
Each
units
2.8 V Hybrid, Permanent Magnet Stepper - - 5mm - - - - - 1.33 A - 33mm -
RS Stock No. 417-9661
BrandRS PRO
SGD64.45
Each
units
12 V dc Brushed Geared 7.92 W 99 rpm 6mm 10000 gcm Planetary 70.5mm - - 990 mA 32 (Dia.)mm - Iron Core
RS Stock No. 901-3311
BrandRS PRO
SGD116.93
Each
units
24 V dc Brushed Geared - 47 rpm 6mm 30 Ncm Spur 73.7mm 100:1 73.7 x 38 x 38 mm - 38mm 38mm Iron Core
RS Stock No. 536-6024
BrandRS PRO
SGD79.32
Each
units
24 V dc Brushless - 4000 rpm 5mm 0.19 Nm - 41mm - 41 x 42 x 42 mm 5.4 A 42mm 42mm -
RS Stock No. 834-7679
BrandRS PRO
SGD19.45
Each
units
12 V dc Brushed Geared 12.8 W 5258 rpm 3.18mm 223 gcm - 57.1mm - 37 (Dia.) x 57.1 mm 1.42 A 37 (Dia.)mm - -
RS Stock No. 535-0502
BrandRS PRO
SGD111.58
Each
units
2.5 V Hybrid, Permanent Magnet Stepper - - 6.35mm - - - - - 2.8 A - 56mm -
RS Stock No. 238-9709
BrandRS PRO
SGD3.81
Each
units
1.5 → 3 V dc - 1.6 W 7800 rpm 2mm 20 gcm - 30.5mm - 23.8 (Dia.) x 30.5 mm 850 mA - - Iron Core
RS Stock No. 535-0439
BrandRS PRO
SGD102.50
Each
units
2.5 V Hybrid, Permanent Magnet Stepper - - 6.35mm - - - - - 2.8 A - 56mm -
RS Stock No. 834-7669
BrandRS PRO
SGD64.19
Each
units
12 V dc Brushed Geared 7.85 W 228 rpm 6mm 2399 gcm Planetary 71mm - 32 (Dia.) x 73.9 mm 990 mA 32 (Dia.)mm - Iron Core