E22NRFT-LDF-NS-00 Kollmorgen
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The Kollmorgen E22NRFT-LDF-NS-00 is a stepper motor from the E Hybrid Stepper Motors series with a NEMA 23 frame size and a frame diameter of 2.25 inches. It features an 8-lead regular leadwire connection, SIGMAX construction, and delivers a step angle of 1.8 degrees for 200 steps per revolution. The motor is built with Class B insulation, operates in ambient temperatures from -20°C to +40°C, and has a smooth shaft with no shaft seal.
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Product Description:
The E22NRFT-LDF-NS-00 is a hybrid stepper motor produced by Kollmorgen for the E Hybrid Stepper Motors series. Built according to the NEMA mounting convention, the device receives two-phase pulse sequences from a drive and converts them into precise rotation, enabling repeatable point-to-point motion in feeders, small stages, and pick-and-place axes. SIGMAX magnetic construction, a laminated rotor, and a smooth shaft work together to deliver high detent torque while permitting direct coupling. The motor provides open-loop positioning without requiring a feedback element, which supports straightforward control in applications where the load remains within the available torque range.
With a frame outside diameter of 2.25 in, the unit conforms to the NEMA 23 envelope, so it fits standard brackets and compatible gearheads. Each electrical step advances the rotor by 1.8 degrees, producing 200 discrete shaft positions during one complete mechanical revolution. This step arrangement supports predictable indexing and simplifies microstepping calculations when the motor is paired with a compatible drive. A Class B insulation system rated for 130 °C protects the windings from thermal stress during extended dwell or stall conditions. The stator connections use a standard 8-lead harness, allowing the coils to be wired in series or parallel according to the drive voltage and current requirements. The winding configuration is intended to provide maximum torque at low rotational speeds.
The motor has an insulation resistance of 100 megohms and a dielectric withstand capability of 340 VDC, providing electrical separation between the windings and housing. Its two-stack arrangement increases static torque while maintaining moderate thermal mass. Step placement remains within ±1.5 % of the commanded angle, providing suitable accuracy for cams, indexing plates, and similar mechanisms without closed-loop correction. The device can operate in ambient temperatures from -20 °C to +40 °C. Its lead wires can be routed through suitable cable-management systems without requiring a separate motor-mounted connector. The motor does not have a shaft seal, making it appropriate for clean, dry enclosures where exposure to dust, moisture, and other contaminants is limited.
