PxG® planetary servo gear units
– the added-value modular system

Thanks to their scalable modular concept, the PxG® planetary servo gear units offer clear added value for every requirement. The units can be custom configured in terms of service life, precision and performance, thereby closing the gap between servomotor and application.

Flexible configuration, high torque, compact design

Gray planetary servo gear unit on concrete
The PxG® planetary servo gear units fit perfectly into your application
The PxG® planetary servo gear units fit perfectly into your application

The modular concept is based on multiple gear unit sizes, each in 1-stage, 2-stage (P5 and P6) and 3-stage (P7) designs and with various performance classes (P5 to P7).

These are further enhanced by numerous options that can be selected in virtually any combination. For example, there are different output bearings, rotational clearance classes, lubricants and gaskets to choose from.

A range of adapter designs and geometrical compatibility with the market standard ensure that the low-backlash planetary servo gear units can be combined with a broad variety of servomotors.

Due to the compact design , which offers high torque in a small installation space, the gear units can be integrated into your application in a space-saving arrangement.

The availability of a digital twin helps with calculating the service life of the solutions

Simplified design view and thermal image of a planetary servo gear unit
Stand-out, innovative details include the digital twin
Stand-out, innovative details include the digital twin

To ensure you are perfectly prepared for Industry 4.0, we provide a digital twin for every PxG® planetary servo gear unit (P5.G.., P6.G.., P7.G..). As all parts and components undergo 100% inspection in the production process, you can use real data to precisely calculate the service life for your planetary servo gear unit.

The unique QR code on each gear unit is the interface between the physical product and the digital world. For example, it offers access to technical documentation and other types of information.

Since the entire product concept has been newly developed and we have worked closely with our industry partners, we can offer you a whole range of additional technical highlights. These include a special development that came out of a collaboration with a prestigious partner – the Premium Sine Seal oil seal , which has been specifically optimized for this gear unit to maximize dynamics and service life.

Standard delivery time of a few days

Factory floor with two pallet transfer shuttles, each configured for five parallel conveyor lines
Impressively high availability and assured quality
Impressively high availability and assured quality

We made the most of cutting-edge simulation and calculation tools from the very outset of our development work. The result is a perfectly networked, modular and highly efficient production system that will ensure short delivery times and rapid re-procurement even when working with a batch size of one. The intelligent workflows and processes are geared to a standard delivery time of a few days.

Delivery reliability and certainty are also key criteria for us when selecting our own suppliers, and our position as a major global customer gives us a strong standing in that regard. High production capacities in the plants and a high global turnover of materials result in short production and assembly times, even when demand is high .

Ask us for advice

  • Our experts are familiar with your industry and requirements
  • Our global network ensures we are close at hand wherever and whenever you need us
  • We have the expertise and tools to provide you with the best possible support and advice

Your benefits

  • Optimum adaptation to your application

    thanks to our comprehensive modular concept combined with numerous options in three performance classes and compatibility with the market standard
  • High torque but small installation space

    thanks to new production and assembly processes, a hardened annulus gearing and tribologically optimized surfaces
  • Simulation of actual behavior in operation

    thanks to the strategy of merging product configuration, operating characteristics, application data and real load in the digital twin
  • Short delivery times and rapid re-procurement

    thanks to a perfectly networked, modular and highly efficient production system based on Industry 4.0 principles.
  • Access to the latest, exclusive technologies

    thanks to joint development work with our industry partners and our continuous research, optimization and development

PxG® planetary servo gear units – the variable units

Added value

Two servo gear units against gray concrete
PxG® planetary servo gear units

We have developed these benefits with you in mind, because we understand your needs

  • Optimum adaptation to your application thanks to a wide-ranging modular system
  • Simple integration into existing systems due to geometrical compatibility with the market standard
  • Custom configuration to precisely suit your requirements in terms of service life, precision and performance
  • High torque but small installation space
  • Compact and short design
  • Digital twin for simulating actual behavior during operation
  • Long service life assured for all elements in the product – bearings, gearing, lubricants and sealing elements
  • Access to the latest, exclusive technologies
  • Short delivery times, even when ordering a single unit, thanks to the perfectly networked, modular and highly efficient production system

Technical data

PxG® planetary servo gear units

Close table
Planetary servo gear units P5.G P6.G P7.G
Sizes 21, 31, 32, 41, 42, 43*, 51, 52, 53*
Gear ratio 1-stage 3 – 10 4 – 5.5
2-stage 12 – 100 16 – 55
3-stage On request 64 – 550
Acceleration torque 66 – 840 Nm 40 – 480 Nm 80 – 990 Nm
Rotational clearance 3 – 4 arcmin 1 arcmin
Service life 20 000 h (60%) 30 000 h (60%) 20 000 h (60%)
Output variants Smooth solid shaft
Solid shaft with key
Splined solid shaft (DIN 5480)
Flange block shaft without index bore
Flange block shaft with index bore
Flange block shaft without index bore
Lubrication Lubrication for life:
SEW GearOil Poly E1 / also in H1 (food grade)
SEW Grease HL2 E1 / also in H1 (food grade)
Seal Premium Sine Seal or labyrinth seal (in the case of grease lubrication)
  1. * P7 only
We have stored a table for you here.

Areas of application

  • Machine tool gantries
  • Mounting presses
  • Drilling and pegging machines
  • Filling and transfer starwheels
  • Printing machines
  • Diaper machines
  • Laser cutting machines
  • Delta kinematics
  • Chain magazine and tool changer
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