M22NLSB-JDS-NS-02 Pacific Scientific
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The Pacific Scientific M22NLSB-JDS-NS-02 is a stepper motor from the POWERMAX II M Motors series with a NEMA 23 frame size and enhanced construction type. It delivers a holding torque of 252 oz-in, supports a rated current of 2.30 A, and features a double shaft configuration. The motor operates between -20°C and +40°C, weighs 5.51 pounds, and has an axial load of 13 pounds.
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Product Description:
The M22NLSB-JDS-NS-02 is a hybrid stepper motor manufactured by Pacific Scientific for the POWERMAX II M Motors series. This NEMA 23 device converts pulse commands from motion controllers into discrete shaft movement, supporting incremental feeds, compact gantries, and label applicators. Its permanent-magnet rotor and laminated stator provide high torque density while matching standard NEMA mounting patterns.
The motor develops a holding torque of 252 oz-in, enabling fixtures to remain stationary while the windings are energized. This torque is available at the rated phase current of 2.30 A applied through the bipolar series connection. Dynamic response is shaped by a phase inductance of 6.10 mH and a phase resistance of 1.52 Ω; these values affect drive voltage requirements and the achievable slew rate. The insulation resistance reaches 100 megohms, while Class B insulation materials support temperatures up to 130 °C and a dielectric limit of 340 VDC. The two-stack enhanced construction with winding type B increases torque, while a thermal resistance of 4.47 °C/W supports heat transfer from the coils. Step accuracy remains within ±1.5% for repeatable positioning.
A rotor inertia of 0.00259 oz-in-s² and the low-inertia design allow quick acceleration and deceleration. Each full step spans 1.8 degrees, providing 200 steps per revolution for fine motion increments. The unit operates from -20 °C to +40 °C and withstands axial forces up to 13.0 lb and radial forces up to 20.0 lb, making it suitable for belt drives or lead screws. The double-ended shaft simplifies encoder or coupling installation, and the motor does not include an integrated feedback device, allowing the use of an external encoder when required. Its 3.10-inch body length and 5.51-pound weight facilitate installation where space is limited. The standard NEMA face mount supports attachment to compatible brackets.
Frequently Asked Questions about M22NLSB-JDS-NS-02:
Q: What is the holding torque of the M22NLSB-JDS-NS-02 motor?
A: The M22NLSB-JDS-NS-02 has a holding torque of 252 oz-in, suitable for demanding positioning tasks.
Q: What frame size does the M22NLSB-JDS-NS-02 motor use?
A: This model features a NEMA 23 frame size, which is a common standard for stepper motors.
Q: What type of shaft configuration does the M22NLSB-JDS-NS-02 feature?
A: The shaft configuration for this motor is double, enabling versatile coupling options for different setups.
Q: What insulation class is provided in the M22NLSB-JDS-NS-02 stepper motor?
A: The M22NLSB-JDS-NS-02 is constructed with Class B insulation, rated for up to 130°C operating temperature.
Q: What is the step angle and number of steps per revolution for the M22NLSB-JDS-NS-02 motor?
A: This model has a step angle of 1.8 degrees, resulting in 200 steps per revolution for precise motion control.
