Planetary gearbox PH-ME with adapter
PH planetary gearbox with a rotating flanged output shaft and ME adapter. Gear ratios from 4:1 to 100:1. Maximum torque 60–7,500 Nm. Backlash 1.0–4.0 arcmin. Efficiency 93–96%. Protection class IP65 / IP66. Cast iron housing. Optionally available with reduced backlash, safety brake, bearing-supported rack-and-pinion drive, ATEX explosion-proof design, or a Stober servo motor.
PH-ME planetary gearbox with adapter
Features of PH-ME planetary gearboxes
- High-performance servo gearboxes with increased torsional and radial stiffness.
- Designed for drive solutions with the highest requirements for rigidity, precision, and reliability.
- Output shaft: rotating flanged shaft.
- High precision with standard or reduced backlash.
- No positioning errors due to fractional gear ratios.
- Maintenance-free: no oil changes or servicing required.
- Low-noise operation with helical gears, max. 59–64 dB.
- Radial shaft seals: FKM on the input shaft / NBR on the output shaft.
- Low moments of inertia.
- Rigid output bearing due to preload.
- Continuous operation without additional cooling.
- Ambient temperature range from 0°C to 40°C (other ranges available on request).
- Max. 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-ME planetary gearboxes
- 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.
- Explosion-proof design in accordance with ATEX Directive 2014/34/EU.
- Special oils for the food industry available 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.
- With EZ / LM servo motor, compact version without adapter and coupling.
- With PH-MB safety brake integrated in the gearbox adapter.
- With ATLANTA modular gear: large ZR-PH-ME, small ZTR-PH-ME or bearing-supported ZTRS-PH-ME
PH-ME Planetary Gearbox Table
| Type | Gear Ratio Range | Acceleration Torque | Max Input Speed | Backlash |
| i | [Nm] | [1/min] | [arcmin] | |
| PH321 / PH331 | 5:1 – 10:1 | 60 – 85 | 8000 | 2 – 4 |
| PH322 / PH332 | 20:1 – 100:1 | 60 – 85 | 8000 | 2 – 4 |
| PH421 / PH431 | 4:1 – 10:1 | 115 – 189 | 5000-7000 | 1 – 3 |
| PH422 / PH432 | 16:1 – 100:1 | 110 – 174 | 8000 | 1 – 3 |
| PH521 / PH531 | 4:1 – 10:1 | 288 – 400 | 5000-6500 | 1 – 3 |
| PH522 / PH532 | 16:1 – 100:1 | 288 – 400 | 7000-8000 | 1 – 3 |
| PH721 / PH731 | 4:1 – 10:1 | 575 – 924 | 4000-5000 | 1 – 3 |
| PH722 / PH732 | 16:1 – 100:1 | 550 – 908 | 6000-7000 | 1 – 3 |
| PH821 / PH831 | 4:1 – 10:1 | 1392 – 2300 | 3500-4000 | 1 – 3 |
| PH822 / PH832 | 16:1 – 100:1 | 1380 – 2300 | 4500-6000 | 1 – 3 |
| PH932 / PH942 | 12:1 – 60:1 | 4600 – 5000 | 3000-4500 | 1 – 3 |
| PH1032 / PH1042 | 18:1 – 60:1 | 6900 – 7500 | 3000-4500 | 3 |
Features of PH-ME Planetary Gearbox Motor Adapters
- Quick and easy mounting for any servo motor.
- One-piece, robust clamping coupling with expansion function.
- Lowest rotor inertia for maximum dynamic performance.
- Balanced for quiet, vibration-free operation even at high speeds.
- Wide range of motor shaft diameters and lengths.
- Perfect fit thanks to precise motor centering.
- Motor can be removed in any position.
- Double sealing of the adapter for larger gearbox models.
- To reduce backlash, the motor shaft bearing must be axially play-free.
Couplings
- EasyAdapt (ME/MEL): One-piece, robust clamping coupling with expansion function.
- FlexiAdapt (MF): Durable, laser-welded bellows coupling with expansion function. Includes integrated thermal length compensation to account for linear expansion of the motor shaft. Motor shaft isolated from axial forces.
ServoStop Motor Adapter with Safety Brake (MB)
Examples of PH-ME Planetary Gearbox Applications
- Industrial rotary tables
- Robotics
- Bending machines
- Rotary tables
- Industrial and welding turntables
- Linear rack-and-pinion drives
- Machine tool and milling machine drives
- Industrial machinery and equipment
Catalogs
443054_en_06_KAT_Servogetriebe.pdf – Stöber servo gearboxes with adapter catalog in English.
Formularz_przekladnie_STOBER_26082024.pdf – Inquiry form for servo gearboxes with servo motor adapter in Polish/German/English.
All Stöber Gearbox Versions with Motor Adapter
- PE-ME Economical planetary gearbox in aluminum housing
- P-ME Precision planetary gearbox in cast iron housing
- P-MB Planetary gearbox with safety brake
- PH-ME Planetary gearbox with flanged shaft
- PH-MB Planetary gearbox with safety brake
- PHQ-ME Quattro planetary gearbox with 4 planets
- PHQ-MB Quattro planetary gearbox with safety brake
- KS-ME Angular planetary-bevel gearbox
- C-ME Economical cylindrical gearbox for servo motors
- C-MB Cylindrical gearbox with safety brake
- C-MR Economical cylindrical gearbox for asynchronous motors
- F-ME Flat cylindrical gearbox for servo motors
- F-MB Flat gearbox with safety brake
- F-MR Flat cylindrical gearbox for asynchronous motors
- KL-MQ Small bevel angular gearbox for servo motors
- K-ME Large bevel angular gearbox for servo motors
- K-MR Bevel angular gearbox for asynchronous motors
- K-MB Bevel gearbox with safety brake
- PKX-ME Angular planetary-bevel gearbox
- PHKX-ME Angular planetary-bevel gearbox
- PK-ME Angular planetary-bevel gearbox
- PK-MB Planetary-angular gearbox with brake
- PHK-ME Angular planetary-bevel gearbox
- PHK-MB Planetary-angular gearbox with brake
- PHQK-ME Angular planetary-bevel gearbox
- PHQK-MB Planetary-angular gearbox with brake