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Stepper Motor with 38cm Lead Screw: Bipolar, 200 Steps/Rev, 42×38mm, 2.8V, 1.7 A/Phase

Pololu item #: 2690
Brand: SOYO	supply outlook
Status: Active and Preferred

Price break	Unit price (US$)
1	72.95
5	68.57
25	64.46

Quantity:
backorders allowed

This NEMA 17-size hybrid bipolar stepping motor has an integrated 38 cm (15″) threaded rod as its output shaft, turning it into a linear actuator capable of precision open-loop positioning. The included traveling nut has four mounting holes and moves 40 µm (1.6 mil) per full step; finer resolution can be achieved with microstepping. The stepper motor has a 1.8° step angle (200 steps/revolution) and each phase draws 1.7 A at 2.8 V, allowing for a holding torque of 3.7 kg-cm (51 oz-in).

Alternatives available with variations in these parameter(s): shaft type Select variant…

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	Description		Specs (13)		Pictures (10)		Resources (1)		FAQs (2)		On the blog (1)

Dimensions

Size:	42.3 mm square × 38 mm (NEMA 17)¹
NEMA size:	17
Weight:	415 g²
Shaft diameter:	8 mm

General specifications

Shaft type:	38 cm threaded rod³
Current rating:	1680 mA⁴
Voltage rating:	2.8 V
Holding torque:	51 oz·in
Steps per revolution:	200
Resistance:	1.65 Ohm⁴
Inductance per phase:	3.2 mH
Number of leads:	4
Lead length:	16 cm⁵

Notes:

1: Not including the shaft.
2: This measurement includes the traveling nut, which adds 11.6 g (0.41 oz).
3: ISO definition of thread characteristics: Tr 8 × 8(P2) – trapezoidal thread, 8 mm diameter, 8 mm lead, 2 mm pitch.
4: Per coil.
5: After twisting.

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