T22NRLH-LNN-NS-00 Pacific Scientific
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The Pacific Scientific T22NRLH-LNN-NS-00 is part of the T High Torque Motors series and features a NEMA 23 frame size with a motor length of 77.7 mm and a weight of 1 kg. It has a nominal holding torque of 1.98 N-m, a step angle of 1.8 degrees, and is rated for 3.3 A DC per phase. The motor supports an axial shaft load rating of 111 N and has a detent torque of 0.042 N-m.
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Product Description:
The T22NRLH-LNN-NS-00 is a two-phase stepper motor produced by Pacific Scientific and supplied within the T High Torque Motors series. It serves positioning and speed control duties in automated machinery where precise incremental motion is required without closed-loop feedback. By energizing its windings in controlled sequences, the motor converts electrical pulses into equal angular steps, allowing controllers to index tooling, conveyors, or small actuators directly. Because it advances in fixed increments, it is well suited for repeatable start-stop motion in compact machines that need predictable shaft movement and simple drive control.
The unit conforms to the NEMA 23 mounting envelope, so it fits many standard machine interfaces without special adapters. Its compact body length of 77.7 mm keeps installation depth low while still delivering a nominal holding torque of 1.98 N-m, which helps the shaft hold moderate loads when power is applied. Each phase draws 3.3 A DC during rated operation, so the connected drive must supply that current to maintain output in full-step or micro-step modes. With a step increment of 1.8°, the motor completes one full revolution in 200 command pulses, making pulse-to-position conversion easy in indexing routines and motion sequences that rely on consistent angular travel.
Mechanical loading limits set the acceptable shaft forces during operation. The motor tolerates axial thrust up to 111 N and radial side load up to 67 N before bearing life is reduced. Copper resistance measures 0.75 Ω at 40 °C, which affects winding heat during continuous current flow. The phase inductance of 3.4 mH influences current rise time and affects how quickly torque can build after each step command. A detent torque of 0.042 N-m helps resist unwanted shaft movement when the windings are de-energized, and the rotor inertia of 0.0000395 kg·m² supports steady acceleration with controlled damping. The housing is 56.9 mm wide, the motor weighs 1 kg, and the two-phase design keeps wiring straightforward.
Frequently Asked Questions about T22NRLH-LNN-NS-00:
Q: What is the axial shaft load rating of the T22NRLH-LNN-NS-00 motor?
A: The T22NRLH-LNN-NS-00 motor supports an axial shaft load rating of 111 N, allowing it to handle significant end-load applications.
Q: What is the rated current per phase for the T22NRLH-LNN-NS-00 motor?
A: This model operates at a rated current of 3.3 A DC per phase, making it suitable for demanding motion requirements.
Q: What is the nominal holding torque of the T22NRLH-LNN-NS-00 motor?
A: The T22NRLH-LNN-NS-00 provides a nominal holding torque of 1.98 N-m, ensuring reliable performance for holding loads in position.
Q: What is the step angle of the T22NRLH-LNN-NS-00 motor?
A: This stepper motor features a 1.8-degree step angle, enabling precise incremental motion control.
Q: What is the frame size and dimensions of the T22NRLH-LNN-NS-00 motor?
A: The T22NRLH-LNN-NS-00 is built to NEMA 23 frame size standards, with a motor width of 56.9 mm and a motor length of 77.7 mm.