Sanyo Pancake Stepper Motor with Encoder: Bipolar, 200 Steps/Rev, 42×24.5mm, 3.5V, 1 A/Phase, 4000 CPR
Quantity Discounts:
- 3-5 $317.41 (exc GST)
- 5+ $310.86 (exc GST)
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Bipolar stepper motor wires are terminated with bare leads. |
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Sanyo bipolar stepper motor wiring diagram. |
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This NEMA 17-size pancake bipolar stepping motor from Sanyo features an integrated high-resolution (1000 P/R) quadrature encoder that allows for 4000 counts per revolution of the output shaft when counting both edges of both channels. The stepper motor itself has a 1.8° step angle (200 steps/revolution) and each phase draws 1 A at 3.5 V, allowing for a holding torque of 0.85 kg-cm (12 oz-in). 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 Pololu recommend using a bipolar stepper motor driver or one of Pololu's Tic Stepper Motor Controllers. In particular, the Tics make control easy because they support six different interfaces (USB, TTL serial, I²C, RC, analog voltages, and quadrature encoder) and are configurable over USB with Pololu's free configuration utility.
Pololu's 5 mm universal mounting hub can be used to mount objects on the stepper motor’s 5 mm-diameter output shaft, and Pololu's NEMA 17 aluminum bracket offers a variety of options for mounting this stepper motor in your project.
This stepper motor is also available without an encoder.
Specifications
- Size: 42 mm square × 24.5 mm, not including the shaft (NEMA 17)
- Weight: 105 g (3.7 oz)
- Shaft diameter: 5 mm
- Steps per revolution: 200
- Current rating: 1 A per coil
- Voltage rating: 3.5 V
- Resistance: 3.5 O per coil
- Holding torque: 850 g-cm (12 oz-in)
- Inductance: 1.2 mH per coil
- Lead length: 30 cm (12")
- Output shaft supported by two ball bearings
More specifications are available in the SS242x stepper motor datasheet (385k pdf) and the product-specific SS2421-50XE100 datasheet (568k pdf).
Dimensions
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Dimensions (in mm) of the SS2421-50XE100 42×24.5mm Sanyo pancake stepper motor with encoder. |
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Pololu also carry a taller version of this stepper motor with identical dimensions except for the height. The pictures below show this stepper motor on the left and the taller version on the right:
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Quadrature encoder
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The integrated quadrature encoder operates from 5 V and has a resolution of 1000 P/R, which allows for 4000 counts per revolution (CPR) of the output shaft when counting both edges (i.e. rising and falling) of both channels (i.e. A and B). In addition to the A and B channel outputs, the encoder has a home channel, Z, that pulses once per revolution and can be used for absolute positioning. The encoder also has outputs for the inverse of A, B, and Z. A 15 cm (6") encoder cable is included.
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Bottom view of the 42×24.5mm Sanyo pancake stepper motor with encoder. |
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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:
- Printers
- CNC machines
- 3D printer/prototyping machines (e.g. RepRap)
- Laser cutters
- Pick and place machines
- Linear actuators
- Hard drives
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Sanyo stepper motors; from left to right: 14mm single shaft, 42×18.6mm, 50×11mm, 14mm double shaft |
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Note: Sanyo Denki calls this product the “SANMOTION F2 STEPPING SYSTEMS TYPE SS2421-50XE100”.
People often buy this product together with:
 | Pololu Universal Aluminum Mounting Hub for 5mm Shaft, #4-40 Holes (2-Pack) |
 | Pololu Stamped Aluminum L-Bracket for NEMA 17 Stepper Motors |
Dimensions
| Size: | 42 mm square × 24.5 mm (NEMA 17)1 |
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| NEMA size: | 17 |
| Weight: | 105 g |
| Shaft diameter: | 5 mm |
General specifications
| Current rating: | 1000 mA2 |
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| Voltage rating: | 3.5 V |
| Holding torque: | 11.8 oz·in |
| Steps per revolution: | 200 |
| Resistance: | 3.5 Ohm2 |
| Inductance per phase: | 1.2 mH |
| Number of leads: | 4 |
| Lead length: | 30 cm3 |
| Encoders?: | Y |
| Encoder resolution: | 4000 CPR4 |
Notes:
- 1
- Not including the shaft.
- 2
- Per coil.
- 3
- This applies to the stepper motor leads only. The included removable encoder cable is 15 cm (6") long.
- 4
- Relative to the output shaft, counting both edges (rising and falling) of both channels (A and B).
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Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia
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