PE-LM planetary servo gearmotor encoderless

Economical PE planetary gearbox with LM servo motor without encoder in a compact design without adapter and coupling. Planetary servo geared motor PE-LM in the power range 0.71 – 8.0 kW. Gear ratio range 3:1 – 35:1. Maximum torque 13 – 250 Nm. Backlash 8 – 10 arcmin. Efficiency 95 – 97 %. Energy efficiency class IE5. Positioning accuracy ±1°. Supplied with servo drive  SB6, SC6, SI6. Smaller, lighter, more energy-efficient. Wide speed control range without fan with full rated torque. Only one power cable!

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PE-LM planetary geared motor without encoder

Properties of PE-LM planetary geared motor

  • Economical PE planetary gears directly mounted on EZ servomotors without adapter and coupling
  • Quiet-running – helical gear teeth of the transmission
  • Precise – selectable standard low backlash 8–10 arcmin
  • No positioning errors – fractional gear ratio
  • Maintenance-free – no oil change required
  • High efficiency 95 – 97 %
  • Ideal for small installation spaces
  • Extremely compact
  • Any mounting position
  • Ambient temperature from 0 °C to 40 °C (other temperature ranges on request)
  • Standard filled with synthetic grease CLP HC ISO VG 150
  • Maximum allowable gearbox temperature (on the gearbox surface) ≤ 80 °C
  • Protection class IP64
  • Shaft seals on the output of the gearbox standard NBR
  • For duty cycle > 60 % and higher ambient temperatures, radial shaft seals made of FKM on the output are recommended
  • Gearbox housing made of aluminum
  • Painted black RAL9005

Optional designs of PE-LM planetary geared motor

  • Protection class IP66
  • Spring-applied safety brake
  • Shaft seals FKM VITON
  • With non-toxic oil Mobil CIBUS 150/220 for the food industry, for food machinery, NSF H1 approved
  • Two layers of paint and any RAL color on customer request
  • With gear drive: rack and pinion with helical teeth

Different output shaft forms of PE-LM planetary geared motor

  • Solid smooth shaft, solid shaft with keyway.

LM servomotors without encoder:

  • Synchronous electric motor with permanent magnets without encoder.
  • Ideal replacement for asynchronous motors.
  • Higher energy efficiency compared to comparable IE4 asynchronous motors.
  • Energy efficiency IE5 according to IEC/TS 60034-30-2.
  • Significantly lighter and more compact than comparable asynchronous motors.
  • Greater acceleration capability than asynchronous motors.
  • More compact.
  • Robust due to elimination of the encoder.
  • Resistant to vibrations and shocks.
  • Lower-cost alternative to servomotors.
  • Much more durable as there is no electronics in the motor.
  • Full control of speed and torque at low speeds and standstill.
  • Only standard power cable without additional encoder wires and shielding.
  • Wiring limited to the supply connection cable.
  • Power connector freely rotatable with quick coupling.
  • No cooling required at low speeds.
  • Speed deviations less than 1%.
  • Compatible with motor motion controllers – servodrives SB6, SC6, SI6.
  • Positioning accuracy ±1° on the servomotor shaft without encoder.
  • Protection class IP56, optionally IP66.
  • Ambient temperature from -15 to +40°C.
  • Motor thermal protection – integrated PTC thermistor.
  • Rolling bearings with lifetime lubrication and contactless sealing.
  • Radial shaft seals made of FKM.
  • Product complies with EU (CE), UK (UKCA), and cURus directives.

Catalogs

443016_en_06_KAT_Lean-Motoren.pdf – Catalog of LM servomotors without encoders with gearboxes by Stober in English

serwomotoreduktory_STOBER_26082024.pdf – Inquiry form for Stober servomotors in Polish/German/English