Stepper Motors

A stepper motor is used as an output in electronic circuits. The motor is a brushless DC electric motor that divides a full rotation into a number of equal steps.

The motor’s position can then be made to move and hold at one of these steps without any position sensor for feedback as long as the motor is carefully sized to the application in respect to torque and speed.

Multiple coils are organised in phases (groups). By energising each phase in sequence the motor will rotate, one step at a time.

Why and when to use a Stepper Motor?

With a computer controlled stepping you can achieve very precise positioning and/or speed control.
•Steppers move in precise repeatable steps, they are perfect to use where precise positioning is needed such as 3D printers, CNC and camera platforms.


•Some disk drives use stepper motors to position the read/write head.


•Precise increments of movement also allow for excellent control of rotational speed for process automation and robotics.


•A Stepper motor has maximum torque at low speeds, so they are a good choice for applications where low speed with high precision is needed.



Stepper motor types
•Bipolar drivers use H bridge circuitry to reverse the current flow through the phases. By energising the phases with alternating the polarity all the coils can be put to work turning the motor.


•Permanent magnet motors use a permanent magnet in the rotor. They operate based on the principle that minimum reluctance occurs with minimum gap, meaning the rotor points are attracted towards the stator magnet poles.


•Unipolar drivers always energise the groups in the same way. The common lead will always be negative. They can be implemented with simple transistor circuitry.



Advantages of step motors
•Low cost


•High reliability


•High torque at low speed


•Full torque at standstill

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Omschrijving Prijs Step Angle Holding Torque Number Of Wires Voltage Rating Frame Size Stepper Motor Type Shaft Diameter Current Rating Winding Arrangement Shaft Length Depth Number of Pole Pairs Resistance Per Phase Detent Torque
RS-stocknr. 829-3500
Fabrikantnummer103H5210-5240
FabrikantSanyo Denki
47,95 €
Each
Aantal stuks
1.8° 0.51Nm 4 24 V dc 42 x 42mm Hybrid 5mm 1 A Bipolar 22.5mm 49.5mm - 4.8Ω -
RS-stocknr. 829-3522
Fabrikantnummer4835728-1
FabrikantSanyo Denki
2,94 €
Each
Aantal stuks
- - 4 - - Bipolar, Unipolar - - Unipolar - - - - -
RS-stocknr. 351-4580
Fabrikantnummer42M048C-1U
34,00 €
Each
Aantal stuks
7.5° 66mNm 6 5 V dc - Permanent Magnet 3mm 550 mA Unipolar 9.88mm 22mm 2 9.1Ω -
RS-stocknr. 878-7742
FabrikantnummerSM2863-5251
FabrikantSanyo Denki
350,42 €
Each
Aantal stuks
1.8° 9.0Nm 4 100 V ac 85.5 x 85.5mm Single Shaft 14mm 6 A Bipolar 28.5mm 128.5mm - 0.46Ω -
RS-stocknr. 878-7685
Fabrikantnummer103H7823-5740
FabrikantSanyo Denki
97,81 €
Each
Aantal stuks
1.8° 2.7Nm 6 24 V dc 60 x 60mm Single Shaft 8mm 2 A Bipolar 19.1mm 87.3mm - 9.5Ω -
RS-stocknr. 878-7673
Fabrikantnummer103H7823-1740
FabrikantSanyo Denki
97,81 €
Each
Aantal stuks
1.8° 2.7Nm 4 24 V dc 60 x 60mm Single Shaft 8mm 4 A Bipolar 19.1mm 87.3mm - 2.4Ω -
RS-stocknr. 829-3493
Fabrikantnummer103H5208-0440
FabrikantSanyo Denki
40,31 €
Each
Aantal stuks
1.8° 0.30Nm 6 24 V dc 42 x 42mm Hybrid 5mm 1.2 A Unipolar 22.5mm 40.5mm - 2.9Ω -
RS-stocknr. 878-7727
FabrikantnummerSM2861-5151
FabrikantSanyo Denki
196,89 €
Each
Aantal stuks
1.8° 3.30Nm 4 100 V ac 85.5 x 85.5mm Single Shaft 14mm 4 A Bipolar 28.5mm 67.5mm - 0.56Ω -
RS-stocknr. 368-0261
Fabrikantnummer15M020D-1B
14,83 €
Each
Aantal stuks
18° 3.9mNm 4 5 V - Permanent Magnet 1.5mm 125 mA Bipolar 8.5mm 15.11mm 2 40Ω -
RS-stocknr. 829-3534
FabrikantnummerSH2141-5541
FabrikantSanyo Denki
104,33 €
Each
Aantal stuks
1.8° 6.5mNm 4 24 V dc 14 x 14mm Hybrid 4mm 300 mA Bipolar 13.5mm 31.5mm - 21Ω -
RS-stocknr. 440-290
Fabrikantnummer82930015
FabrikantCrouzet
42,69 €
Each
Aantal stuks
7.5° 0.16Nm 6 12.5 V - Permanent Magnet 4mm 390 mA Unipolar 14.4mm 35.4mm 2 32Ω -
RS-stocknr. 878-7730
FabrikantnummerSM2863-5151
FabrikantSanyo Denki
350,42 €
Each
Aantal stuks
1.8° 9.0Nm 4 100 V ac 85.5 x 85.5mm Single Shaft 14mm 4 A Bipolar 28.5mm 128.5mm - -
RS-stocknr. 829-3540
FabrikantnummerSP2563-5160
FabrikantSanyo Denki
171,50 €
Each
Aantal stuks
1.8° 1.0Nm 4 24 V dc 56 x 56mm Hybrid 6.35mm 2 A Bipolar 19.1mm 81.5mm - 1.5Ω -
RS-stocknr. 878-7752
Fabrikantnummer103H5208-0410
FabrikantSanyo Denki
42,48 €
Each
Aantal stuks
1.8° 0.30Nm 6 24 V dc 42 x 42mm Bipolar, Unipolar 5mm 1.2 A Unipolar 22.5mm 40.5mm - 2.9Ω -
RS-stocknr. 829-3547
FabrikantnummerSS2422-5041
FabrikantSanyo Denki
54,29 €
Each
Aantal stuks
1.8° 18.6mNm 4 24 V dc 42 x 42mm Hybrid 5mm 1 A Bipolar 7mm 18.6mm - 5.4Ω -
RS-stocknr. 878-7758
Fabrikantnummer103H5205-5210
FabrikantSanyo Denki
40,00 €
Each
Aantal stuks
1.8° 0.27Nm 6 24 V dc 42 x 42mm Bipolar, Unipolar 5mm 1 A Bipolar 22.5mm 34.5mm - 3.4Ω -
RS-stocknr. 440-307
Fabrikantnummer82940003
FabrikantCrouzet
57,71 €
Each
Aantal stuks
7.5° 0.24Nm 6 12.7 V dc - Permanent Magnet 6mm 50 mA Unipolar 13mm 43mm 2 26.7Ω -
RS-stocknr. 829-3538
FabrikantnummerSS2421-5041
FabrikantSanyo Denki
54,29 €
Each
Aantal stuks
1.8° 83mNm 4 24 V dc 42 x 42mm Hybrid 5mm 1 A Bipolar 7mm 11.6mm - 3.5Ω -
RS-stocknr. 351-4603
FabrikantnummerP542-M481U-G01L82
65,19 €
Each
Aantal stuks
7.5° 0.20Nm 6 5 V dc - Permanent Magnet 4mm 550 mA Unipolar 17.2mm 25mm 2 9.1Ω -
RS-stocknr. 878-7777
Fabrikantnummer103H7123-5640
FabrikantSanyo Denki
61,91 €
Each
Aantal stuks
1.8° 1.0Nm 4 24 V dc 56 x 56mm Single Shaft 6.35mm 1 A Bipolar 19.1mm 55.3mm - 5.7Ω -
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