PHQ-EZ Quattro planetary servo geared motor
PHQ Quattro planetary gearbox with a rotating flanged output shaft and an electric synchronous motor, EZ servo motor. Power range 0.25–31.0 kW. Gear ratios from 5.5:1 to 600:1. Maximum torque 45–22,000 Nm. Backlash 1.0–3.0 arcmin. Efficiency 90–96%. The servo gearmotor is optionally available with encoder or resolver, reduced backlash, up to two brakes, fan, single-cable technology with EnDat 3.0, and with a bearing-supported rack-and-pinion drive ZTRS_PHQ-EZ. Supplied as a complete unit with SB6, SD6, SC6 or SI6 servo drives.
PHQ-EZ Quattro planetary servo geared motor
Features of PHQ-EZ planetary servo geared motor
- Compact and highly dynamic thanks to direct mounting of the gearbox on the servo motor without adapter or coupling.
- Higher torque than standard planetary gearboxes.
- Larger gear ratios up to 600:1.
- Increased torsional and radial stiffness.
- Output shaft: rotating flanged shaft.
- High precision – choice of standard or reduced backlash.
- Fractional gear ratio ensures no positioning errors.
- Maintenance-free – no oil changes or servicing required.
- Low-noise operation with helical gears, max. 59–64 dB.
- Low moments of inertia.
- Rigid output bearing due to preload.
- Continuous operation without additional cooling.
- Ambient temperature from 0°C to 40°C (other temperature ranges on request).
- Maximum gearbox housing temperature ≤ 90°C.
- Protection class IP65.
- Any mounting position.
- Synthetic gear oil CLP HC ISO VG 150.
- One primer paint coat in RAL 7001 or RAL 9005.
- Radial shaft seals: FKM on input / NBR on output.
- For duty cycles > 60% and higher ambient temperatures, FKM radial shaft seals on the output are recommended.
Optional versions of PHQ-EZ planetary servo gearmotors
- Reinforced axial and radial bearing of the output shaft for sizes PHQ4–PHQ5.
- Double sealing of the servo motor adapter.
- FKM VITON seals for high-temperature applications.
- With modular helical gear.
- Special oils for the food industry on request.
- Two or more paint layers in any RAL color.
- Corrosion-resistant Washdown version.
- Protection class IP66.
- Without adapter – direct mounting with EZ/LM servo motors.
- With safety brake in the gearbox adapter.
- Modified oil quantity for bidirectional operation within a movement range of ±20° to ±90°.
- Cyclic reversing operation ≤ ±20° available on request.
Features of EZ Servo Motors
- Electric synchronous motors with permanent magnets.
- Rotating plug connectors with quick-lock mechanism.
- Operating ambient temperature range: −15°C to +40°C.
- Standard protection class IP56, optionally IP66.
- Temperature class F (155°C).
- Electronic nameplate for fast identification of servo motor parameters.
- Rolling bearings with lifetime lubrication and non-contact sealing.
- Radial shaft seals made of FKM VITON.
- Radial and axial runout within IEC 60072-1 tolerance class.
- Permissible noise levels according to EN 60034-9.
- Not suitable for use in explosive atmospheres.
- Certifications: CE, UKCA, optionally cURus.
- Integrated PTC thermistor, optionally PT1000 temperature sensor.
- Standard color black RAL 9005, optionally any RAL color.
- Optional elimination of referencing for multiturn absolute encoders.
- External fan available for higher ambient temperatures, increased continuous power, or up to 30% higher torque.
- Electromagnetic safety brake 24 VDC.
Encoders in PHQ-EZ planetary servo gearmotors
- Resolver
- Absolute encoder EnDat 2.1 / 2.2, inductive or optical, multiturn or singleturn
- Optional single-cable OCS solution with absolute encoder EnDat 3.0 (EQI 1131) for cable lengths up to 100 m
Catalogs
442437_en_15_KAT_Servogetriebemotoren.pdf – STÖBER servo gearmotors catalog in English.
serwomotoreduktory_STOBER_26082024.pdf – Inquiry form for STÖBER servo gearmotors in Polish, German, and English.
