Product Description:

The E31NRFP-LNN-NS-00 is a hybrid stepper motor manufactured by Kollmorgen as part of the E Hybrid Stepper Motors series. In automated machinery, it converts pulse trains from an indexer or drive into incremental rotation, so conveyors, rotary tables, or pick-and-place axes can hold or advance to programmed positions without a feedback device. The motor’s magnetic design emphasizes holding torque at standstill, supporting tight position control during frequent start-stop cycles that are common in packaging and semiconductor tooling.

With a NEMA 34 frame, the motor presents a 3.4-inch square face and a mounting bolt circle of 3.875 in that matches standard brackets. A step angle of 1.8 degrees produces 200 discrete positions per revolution, while step accuracy remains within ±1.5%, which supports repeatable indexing. A single stator stack and SIGMAX construction support a winding intended for maximum torque at high speed, supplying additional torque margin as pulse frequency climbs. Coil insulation can withstand up to 340 Vdc. Insulation resistance is 100 Megohms, which helps limit leakage current. The motor uses an eight-lead configuration routed through a regular leadwire harness, allowing either series or parallel phase wiring. A NEMA mounting style with a 2.875 in pilot diameter centers the housing accurately, and the smooth output shaft simplifies coupling to gears or pulleys.

Rated operation spans -20 °C to +40 °C, making the device suitable for most control-cabinet environments. Overall depth is only 2.58 in, which eases installation in shallow enclosures, and the stainless output shaft measures 0.3750 in in diameter with a 1.25 in working length for secure hub engagement. Power conductors are sized at 22 AWG and extend at least 12 in to reach terminal strips without splicing. Class B, 130 °C insulation accommodates winding temperatures well above ambient, while the single-stack build keeps mass low for quicker acceleration during indexing.