M22NRXC-LDN-M1-00 Pacific Scientific
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The Pacific Scientific M22NRXC-LDN-M1-00 belongs to the POWERMAX II M Motors series and features a NEMA 23 frame size with enhanced construction. This motor provides a holding torque of 1.68 Newton-meters and step angle of 1.8 degrees for 200 steps per revolution. It operates at a parallel current of 3.1 Amps DC, and has a smooth double shaft with a diameter of 0.25 inches.
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Product Description:
The M22NRXC-LDN-M1-00 is a stepper motor from the POWERMAX II M Motors series manufactured by Pacific Scientific. It uses an enhanced construction type with a standard rotor and two magnetic stacks to produce precise incremental rotation, making it suitable for open-loop positioning in machine tools, pick-and-place axes, and index tables. The unit follows NEMA mounting conventions, with a frame size of 23, a Ø2.625 in bolt circle, and a Ø1.500 in pilot. Its overall length is 3.10 in, which helps it fit compact cabinet layouts.
Its electromagnetic performance is anchored by 1.68 N·m holding torque, which maintains load position when power is applied, and 0.12 N·m detent torque, which helps reduce cogging during microstepping. Each full step spans 1.8 degrees, giving the motor a basic resolution of 200 steps per revolution, with cumulative error limited to ±1.5% step accuracy. The bifilar C-type winding draws 3.1 A DC in parallel operation, while 0.78 Ω resistance and 3.1 mH inductance balance drive voltage requirements and current ripple. Thermal energy exits through a 4.5 °C/W path to the frame, assisted by Class B insulation rated at 130 °C and a 100 MΩ insulation resistance that helps protect against moisture.
Mechanical limits include 89 N maximum radial force and 58 N axial load capability on the double smooth shaft. The shaft measures Ø0.2500 in and is supported by bearings sized for long duty cycles, while a provision for encoder mounting on a Ø1.812 in bolt circle and a regular lead-wire connection with a receptacle interface simplify integration with controllers. The motor operates between -20 °C and +40 °C, and its rotor inertia of 0.0036 oz-in-s² allows quick acceleration without overshoot. The insulation system is rated at 340 Vdc, and the 1.13 kg mass supports stable mounting. NEMA mounting patterns also suit belt, pulley, or direct-coupled assemblies.
Frequently Asked Questions about M22NRXC-LDN-M1-00:
Q: What is the holding torque of the M22NRXC-LDN-M1-00 motor?
A: The M22NRXC-LDN-M1-00 stepper motor offers a holding torque of 1.68 N·m.
Q: What shaft configuration and diameter does the M22NRXC-LDN-M1-00 motor have?
A: This model features a double smooth shaft with a diameter of 0.2500 inches.
Q: How many steps per revolution does the M22NRXC-LDN-M1-00 offer?
A: The step angle is 1.8 degrees, resulting in 200 steps per revolution for this motor.
Q: What insulation class is specified for the M22NRXC-LDN-M1-00 motor?
A: The insulation class is Class B, rated for up to 130°C operation.
Q: What is the maximum axial force the M22NRXC-LDN-M1-00 can withstand?
A: The maximum axial force this motor can handle is 58 N.
