E22NRFT-JDN-NS-00 Kollmorgen
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The Kollmorgen E22NRFT-JDN-NS-00 is a stepper motor from the E Hybrid Stepper Motors series and features a NEMA 23 frame size with a 2.25 inch diameter. It has an 8 lead connection with multiple connection modes, operates with a step angle of 1.8 degrees, and provides 200 steps per revolution. The motor supports insulation class B rated at 130°C and operates within a temperature range of -20°C to +40°C.
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Product Description:
The E22NRFT-JDN-NS-00 is a hybrid stepper motor produced by Kollmorgen within the E Hybrid Stepper Motors series. This two-phase unit converts pulse commands from motion controllers into precise shaft increments. Its controlled incremental movement makes it suitable for conveyors, pick-and-place axes, and metering pumps in industrial automation.
The motor has a 2.25 in frame diameter that fits the standard NEMA 23 mounting pattern, and its smooth shaft is supplied without a seal to simplify coupling in clean environments. Each full step advances the rotor by 1.8 degrees, providing 200 discrete positions per revolution with a step accuracy of ± 1.5 %. The low-inertia rotor and SIGMAX construction are paired with windings tuned for maximum torque at low speed, so acceleration is quick even on lightly geared loads. Eight leads exit through a standard lead-wire harness, enabling series, parallel, or unipolar connection to the drive. The motor does not include an internal feedback device, so the controller must infer its position from the commanded steps. Dual stator stacks raise holding torque without enlarging the footprint, while the NEMA mounting face supports direct attachment to linear stages or small gearboxes.
The electrical insulation has a resistance of 100 megohms, and the windings tolerate an overvoltage test of 340 VDC. The lamination and varnish systems use Class B insulation with a 130 °C rating, providing thermal headroom for intermittent overloads. Continuous operation is permitted from -20 °C to +40 °C, allowing installation in unconditioned cabinets or near warm process equipment without supplemental heating or cooling. The insulation system helps protect the windings from electrical stress during regular industrial operation. Proper current control remains necessary to prevent excessive winding temperature during sustained low-speed operation.
