P-LM planetary servo gearmotor encoderless
Precision planetary gear P with LM servo motor without encoder in a compact design without adapter and coupling. Planetary servo reducers in the power range 0.71 – 8.0 kW. Gear ratios 3:1 – 70:1. Maximum torques 13 – 1,840 Nm. Backlash 1 – 5 arcmin. Efficiency 95 – 97 %. Positioning accuracy ±1°. Supplied with servo drive SB6, SC6, SI6. Smaller, lighter, energy-efficient. Wide range of speed regulation without a fan with constant nominal torque. Only a single power cable!
P-LM planetary servo geared motor without encoder
Properties of P-LM planetary servo geared motor
- Compact and very dynamic thanks to direct mounting of the gearbox on the servo motor without adapter and coupling.
- Gearbox mounting via square flange.
- Precise – standard or reduced backlash.
- No positioning errors – gearbox ratio in fractional form.
- Maintenance-free – no oil changes or maintenance required.
- Quiet operation – helical gear wheels.
- Any mounting position.
- High torsional stiffness.
- Low moments of inertia.
- Continuous operation without cooling.
- Seals FKM on input / NBR on output (optionally FKM VITON).
- Rigid output bearing due to preload.
- Ambient temperature from 0° C to 40° C (other temperature ranges on request).
- Maximum gearbox housing temperature ≤ 90 °C.
- Protection class IP65.
- Synthetic gearbox oil type CLP HC ISO VG 150.
- Single primer coat in color RAL7001 or RAL900
Optional versions of P-LM planetary servo geared motor
- Protection class IP66.
- Radial shaft seal FKM VITON.
- Double sealing.
- Reduced backlash 1.5 – 4.0 arcmin.
- BR – spring-applied safety brake.
- With two safety brakes in the P-MB gearbox adapter and on the servo motor.
- Reinforced radial or axial output shaft bearing.
- With modular gear and helical rack.
- Non-toxic oil Mobil CIBUS 150/220 for the food industry, for food machinery, NSF H1 approved.
- Two or more paint layers in any RAL color.
- Special oils for the food industry on customer request.
Different output shaft types of P-LM planetary servo geared motor
- G – solid smooth shaft, P – solid shaft with key.
Properties of LM servo motors without encoder:
- Ideal replacement for an asynchronous motor
- 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 due 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 control of speed and torque at low speeds and standstill.
- Only standard power cable without additional encoder wires or shielding.
- Wiring is limited to the power supply connection cable
- Power connector rotatable in any direction with quick coupling
- No cooling required at low speeds.
- Speed deviations less than 1%
- Compatible with motor controller – servo drives SB6, SC6, SI6.
- Positioning accuracy +/-1° on the servo motor shaft without encoder
- Protection class IP56, optionally IP66
- Ambient temperature from -15 to +40°C
- Thermal motor 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 gear units in Polish/German/English
