PH-EZ planetary servo geared motor

PH planetary gearbox with a rotating flanged output shaft and electric synchronous EZ. servo motor. Servo gearmotors in the power range 0.25–31.0 kW. Gear ratios from 4:1 to 121:1. Maximum torque 24–7,500 Nm. Backlash 1.0–4.0 arcmin. Efficiency 93–96%. Optionally available with resolver, reduced backlash, up to two brakes, fan, single-cable servo motor with EnDat 3.0 encoder, and rack-and-pinion drive ZR-PH-EZ. Supplied as a complete unit with SB6, SD6, SC6, SI6 motion controllers.

PH-EZ planetary servo geared motor

Features of PH-EZ planetary servo geared motor

• High-performance and precise servo motors with planetary gearbox in direct mounting, without adapter or coupling.
• High-performance servo gearboxes with increased torsional and radial stiffness.
• Output shaft: rotating flanged shaft.
• High precision – 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.
• Radial shaft seals: FKM on input / NBR on output.
• 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.

Optional versions of PH-EZ planetary servo gearmotor

• Reinforced axial and radial bearing of the output shaft for sizes PH3–PH5.
• 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.
• Modified oil quantity for bidirectional operation within a movement range of ±20° to ±90°.
• Cyclic reversing operation ≤ ±20° available on request.
• Without adapter – direct mounting with EZ/LM servo motors.
• With safety brake integrated in the gearbox adapter.

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 quick 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 PH-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

Compatibility of PH-EZ Planetary Servo Gearmotors with Servo Drives

• Single-axis SB6, dual-axis SC6, multi-axis SI6 and SD6 drives from STÖBER
• ACOPOS from B&R
• AX5000 from Beckhoff
• AKD, S300, S400, S600 from Kollmorgen
• Sinamics S120 from Siemens
• Bosch Rexroth
• Allen-Bradley