This pancake bipolar stepping motor from Sanyo has a 1.8° step angle (200 steps/revolution). It offers a holding torque of 850 g-cm (12 oz-in), and each phase draws 1 A at 3.5 V. This stepper motor’s flat profile (18.6 mm including the shaft) allows it to be used in places where more traditional stepper motors would be too bulky.
|Bipolar stepper motor wires are terminated with bare leads.|
|Sanyo bipolar stepper motor wiring diagram.|
This pancake bipolar stepping motor from Sanyo has a 1.8° step angle (200 steps/revolution) and a holding torque of 850 g-cm (12 oz-in). Each phase draws 1 A at 3.5 V. The motor has four color-coded wires terminated with bare leads: red and yellow connect to one coil; orange and blue connect to the other. It can be controlled by a pair of suitable H-bridges (one for each coil), but we recommend using a bipolar stepper motor driver. For more information, see the datasheet (385k pdf).
Our 5mm universal mounting hub can be used to mount objects on the stepper motor’s 5mm-diameter output shaft.
- Size: 42 mm square × 11.6 mm, not including the shaft
- Weight: 70 g (2.5 oz)
- Shaft diameter: 5 mm
- Steps per revolution: 200
- Current rating: 1 A per coil
- Voltage rating: 3.5 V
- Resistance: 3.5 Ohm per coil
- Holding torque: 850 g-cm (12 oz-in)
- Inductance: 1.2 mH per coil
- Lead length: 12 in
|Pull-out torque of the Sanyo 42×11.6mm pancake stepper motor.|
The following diagram shows the stepper motor dimensions in mm. The dimension labeled “L” is 11.6 mm. The output shaft has a length of 7 mm and a diameter of 5 mm.
|Bottom view of the 42×11.6mm Sanyo pancake stepper motor.|
Stepper Motor Applications
Stepper motors are generally used in a variety of applications where precise position control is desirable and the cost or complexity of a feedback control system is unwarranted. Here are a few applications where stepper motors are often found:
- CNC machines
- 3D printer/prototyping machines
- Laser cutters
- Pick and place machines
- Linear actuators
- Hard drives
|Sanyo stepper motors; from left to right: 14mm single shaft, 42×18.6mm, 50×11mm, 14mm double shaft|
Note: Sanyo Denki calls this product the “SANMOTION F2 STEPPING SYSTEMS TYPE SS2421-5041”.