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Sanyo Pancake Stepper Motor with Encoder: Bipolar, 200 Steps/Rev, 42×24.5mm, 3.5V, 1 A/Phase, 4000 CPR

Pololu item #: 2278
Brand: Sanyo Denki

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Price break	Unit price (US$)
1	209.95

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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).

	Description		Specs (14)		Pictures (11)		Resources (2)		FAQs (2)		On the blog (1)		Distributors (25)

Dimensions

Size:	42 mm square × 24.5 mm (NEMA 17)¹
NEMA size:	17
Weight:	105 g
Shaft diameter:	5 mm

General specifications

Current rating:	1000 mA²
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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