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 SB6, SC6, SI6. 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 SB6, SC6, SI6.
- Positioning accuracy ±1° without encoder with servo drives SB6, SC6, SI6.
- 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
