3257N9C2B

32mm Dual-shaft Precision DC Coreless Motor
Diameter: 32mm; Length: 57mm; Voltage: 12~24V; Max. output power: 34.6~58.9W; Speed: 5600~7400rpm; Nominal torque: 30~50mNm.

Applications: precision drives in medical equipment and devices, healthcare products, robotics, and industrial automation.
Options：Lead wires length, Shaft length, Special coils, Bearing type, Gearheads, Encoder.

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Parameter Outline Drawing Characteristic Curve Download

Characteristics	Unit	01-54-12.0	02-64-24.0	08-74-24.0
Voltage	V	12.0	24.0	24.0
Terminal resistance	Ω	1.0	2.8	2.4
No-load speed	rpm	5600	6400	7400
No-load current	mA	240	70	100
Stall torque	mNm	235.8	301.9	303.5
Stall current	mA	12000	8570	10000
Nominal torque	mNm	30.0	50.0	50.0
Nominal speed	rpm	4890	5340	6180
Nominal current	mA	1740	1480	1730
Max. output power	W	34.6	50.6	58.9
Max. efficiency	%	74	83	81
Back-EMF constant	mV/rpm	2.1	3.7	3.2
Torque constant	mNm/A	20.1	35.5	30.7
Speed/torque gradient	rpm/mNm	23.7	21.2	24.4
Rotor inertia	gcm²	42	42	42
Weight	g	230	230	230