PKX-LM angle planetary servo gear motor encoderless

Angular planetary gear PKX with LM servo motor without encoder in a compact design without adapter and coupling. PKX-LM angular servo gearmotors in the power range 0.71 – 8.0 kW. Gear ratios 3:1 – 210:1. Torque 13 – 3,300 Nm. Backlash 2 – 8.5 arcmin. Efficiency 94 – 96 %. Positioning accuracy ±1°. Supplied with SB6SC6SI6. servo drive. Smaller, lighter, more energy-efficient. Wide speed control range without fan with constant rated torque. Only one power cable!

PKX-LM angle planetary servo gear motor without encoder

Properties of PKX-LM angle planetary servo gear motor

  • Properties of PKX-LM angular planetary servo gearmotors
  • Compact and dynamic thanks to direct mounting of the gear on the servo motor without adapter and coupling
  • Precise planetary gears P directly mounted on the bevel gear K
  • No positioning errors – precise gear ratio in fractional form
  • Choice of standard or reduced backlash
  • Ambient temperature from 0°C to +40°C (other temperature ranges on request)
  • Max. permissible gearbox housing temperature ≤ 90 °C
  • Quiet operation thanks to helical gearing of the gears
  • Maintenance-free – no oil change required
  • Any mounting position
  • Continuous operation without additional cooling
  • Excellent temperature resistance
  • High chemical stability
  • Very good aging resistance
  • Excellent resistance to oils and greases
  • Applications in the food, pharmaceutical, chemical, and bottling industries
  • Equipped with high-quality radial shaft seals and tested for tightness
  • Reversing cyclic operation ≤ ±20° on request
  • Cast iron gearbox housing
  • Radial shaft seals on the output made of NBR or FKM
  • For duty cycle > 60% and higher ambient temperatures, radial shaft seals made of FKM on the output are recommended

Optional versions of PKX-LM angular planetary servo gearmotors

 

 

  • Protection class IP66
  • FKM VITON sealing
  • Double sealing
  • Reduced backlash 2.0 – 4.5 arcmin
  • BR – spring-applied safety brake
  • With MF adapter and coupling matched to the servo motor
  • Reinforced radial and axial bearing of the output shaft
  • With modular gear and helical rack
  • With non-toxic Mobil CIBUS 150/220 oil for the food industry, for food machinery, NSF H1 approved
  • Two or more layers of paint in any RAL color
Various output shaft forms of PKX-LM angular servo gearmotors
  • P – keyed shaft, G – solid smooth shaft

Properties of LM servo motors without encoder:

 

    • Ideal replacement for asynchronous motors
    • Higher energy efficiency compared to comparable asynchronous motors IE4
    • 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 thanks to the elimination of the encoder
    • Resistant to vibrations and shocks
    • Cheaper alternative to servo motors
    • Much more durable, as there is no electronics in the motor
    • Full speed and torque control at low speeds and standstill
    • Only standard power cable without additional encoder or shielded wires
    • Wiring limited to the power supply cable
    • Power connector rotatable in any direction with quick coupling
    • No cooling required at low rotational speeds
    • Speed deviations less than 1%
    • Compatible with motor controller – servo drives SB6SC6SI6.
    • Positioning accuracy ±1° without encoder with servo drives SB6SC6SI6.
    • Protection class IP56, optionally IP66
    • Ambient temperature from -15 to +40°C
    • Motor thermal protection – integrated PTC thermistor
    • Rolling bearings with permanent lubrication and non-contact 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 servo motors without encoders with gearboxes from Stober in English

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