Product Description:

The E33NRFB-LNN-NS-00 hybrid stepper motor is produced by Kollmorgen within the E Hybrid Stepper Motors series. It is intended for incremental positioning tasks where repeatable open-loop motion is acceptable, such as indexing tables, small pick-and-place heads, and laboratory dispensers. This operating style suits equipment that repeats the same travel pattern and does not need a separate feedback device for routine moves. By combining permanent-magnet and variable-reluctance technology, the unit develops full-step torque without encoder feedback. Its standard NEMA frame and leadwire terminations allow straightforward integration into existing drives and micro-stepping controllers used throughout industrial automation.

The motor fits the NEMA 34 frame envelope, measures 128.5 mm in body length, and uses SIGMAX construction to minimize detent torque. A step increment of 1.8 degrees yields 200 steps per revolution, which are held within ±1.5 % accuracy by a three-stack rotor. Eight lead wires are provided in a regular leadwire connection style, and the minimum free lead length is 304.8 mm for routing into terminal boxes. Mounting follows the NEMA face pattern, and the smooth shaft simplifies direct coupling. Static loading limits reach 801 N axially and 156 N radially, giving margin for belt tensioners or moderate thrust bearings. Thermal energy exits through a 2.0 °C/W path from winding to case.

Electrical insulation is rated at Class B, 130 °C, supported by 100 Megohms resistance and a 340 Vdc dielectric withstand to match typical low-voltage drive buses. Service environments can range from −20 °C to +40 °C without forced cooling, provided that housing heat leaves through the thermal pathway described earlier. The combination of insulation, thermal transfer, and rotor inertia supports stable operation when the motor starts, stops, and holds position under changing loads. The rotor’s mass moment of 0.177 ×10⁻³ kg·m² permits quick acceleration when coordinated by current-mode micro-stepping, while still damping resonance introduced by belts or gears. A shipping weight of 3.45 kg eases installation on vertical plates and linear stages.