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LS35E040-B2B20 Closed-loop stepper motors

LEESN's new generation of 35mm*35mm(NEMA14) two-phase 1.8° closed-loop stepper motor, built-in 2500 wire encoder, with miniaturized design, low heating, high stability, high consistency, greater torque, higher performance, recommended for the driver DE42.
① Spindle mode:
Provide single flat, double flat, keyway, hobbing and other shaft delivery modes;
② Lead mode:
According to different application requirements, provide customized winding and routing methods;
③ Accessories selection:
Provide a variety of accessories for the stepper motor, such as planetary reducer, power off brake, etc.

The working principle of closed-loop stepper motor is based on feedback control. Encoders or other position sensors constantly monitor the position of the motor and feed the actual position information back to the motor controller. The controller compares the target position and if an error is detected, it adjusts the motor's control signal accordingly to correct the error and move the motor to the correct position.

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Specification parameters
  • Phase number
    two-phase
  • Step Angle
    1.8 °
  • Step Angle error
    Below ±0.09°
  • Fuselage length
    73mm
  • Axis length
    21mm
  • Shaft diameter
    5mm
  • Rated current
    2.0 A
  • Holding torque
    0.40 N.M
  • Phase resistance
    1.3 Ω
  • Phase inductance
    2.1 mH
  • Moment of inertia
    ≈35g.c㎡
  • weight
    ≈370g
  • Service temperature range
    0 ℃ + 50 ℃
  • Service humidity range
    20%RH - 90%RH

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