The best solution | PxG® planetary servo gear units

Added value

Modular system

Product characteristics

Options for integration

Configuration

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The benefits for you

PxG^® planetary servo gear units:
The best solution for your application

Are you keen to find highly flexible solutions that are in perfect harmony with your applications?

If so, we have just what you are looking for – our modular system complete with the modular product concept of our PxG^®planetary servo gear units:

Almost any combination is possible
thanks to several 1- , 2- and 3-stage gear units in a range of performance classes (P5 to P7) and a multitude of options such as various output bearings, rotational clearance classes, lubricants and seals.

Space-saving integration into any of your applications possible
thanks to high torque combined with a small installation space and various adapter designs. PxG^®planetary servo gear units can also be integrated into existing systems with ease thanks to their geometric compatibility with the market standard. That’s how easy flexibility can be.

Wide-ranging modular system

for greater flexibility and perfect adaptation of the drives to your application

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Unique product characteristics

developed in collaboration with our industrial partners specially for you

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Can be integrated with ease

thanks to geometric compatibility with the market standard

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Customized configuration

to suit your requirements exactly in terms of service life, precision and performance

Find out more

Wide-ranging modular system

for optimized adaptation to your application

Wide-ranging modular system

for optimized adaptation of our solution to your application

Performance classes of our PxG^®planetary servo gear units:

P5 for applications with dynamic motion sequences
P6 for continuous duty (S1 operation) and high speeds
P7 for maximum power density

In total, six gear unit sizes in one-, two- and three-stage designs

Output variants:

Solid shaft, smooth or with key
Multiple-spline shaft to DIN 5480
Flange block shaft with or without index bore

Rotational clearance:

Performance class 5 and 6:
- Standard: 3 – 4 arcmin
- Reduced: 1 – 3 arcmin
Rotational clearance performance class 7:
- Reduced: 1 – 3 arcmin

Lubrication for life:

GearOil Poly E1 by SEW-EURODRIVE, also in H1 (food grade)
Grease HL 2 E1 by SEW-EURODRIVE (only for performance class 6), also in H1 (food grade)

Seal:

Premium Sine Seal as standard for a long service life
Labyrinth seal (with grease lubrication) with improved thermal operating characteristics

Unique product characteristics

We have worked together with our industrial partners to develop the materials, parts and components used in our PxG^® planetary servo gear units specially for you.

Exploded view diagram of PxG product parts

Output shaft

Solid shaft, smooth or with key
Multiple-spline shaft to DIN 5480
Flange block shaft with/without index bore

Planetary stage at output

Three planet gears for a wide gear ratio range
Four planet gears for even more torque in the same installation space

Output bearing

Bearing with line contact for high permitted radial loads
Bearing with point contact with optimized thermal characteristics

Gearing components

Helical planet gears for maximum precision
Helical, surface-treated planet gears for minimum wear

Planet gear bearing

Designed for a service life of 20 000 hours at 60% cyclic duration factor (performance class 5 and 7)
Designed for a service life of 30 000 hours in continuous duty (performance class 6)

Lubrication

GearOil Poly E1 by SEW-EURODRIVE, also in H1 (food grade)
Grease HL 2 E1 by SEW-EURODRIVE (only for performance class 6), also in H1 (food grade)

Seal at input end

Premium Sine Seal oil seal as standard for a long service life
Labyrinth seal (with grease lubrication) with improved thermal operating characteristics

Coupling

Clamping ring:
- Clamping ring for the safe transmission of large motor torques
- Clamping ring with reduced inertia for greater dynamics
Adapter design:
- Rigid adapter shaft for dynamic applications
- Bellows coupling for applications in continuous duty

Motor connection

A multitude of adapter plates with different geometries for the flexible mounting of servomotors from SEW-EURODRIVE or other manufacturers

Can be integrated with ease

The drives can be easily integrated into your application thanks to geometric interfaces based on the market standard

Can be exactly adapted to your application

The centering and hole circle diameter on the housing of the PxG^®planetary servo gear unit and the drilling pattern, diameter and length of the output shaft are compatible with other products on the market. This is a major benefit, as it means our solution can easily be used in existing applications and machine structures.

Can be combined with a huge variety of servomotors

Geometric compatibility with the market standard
Easy replacement in existing machines/systems without modifications
PxG^®planetary servo gear units can also be used as an alternative in the case of a dual or multiple supplier strategy

Wide-ranging modular adapter system

The adapter geometry and range of coupling options enable the mounting of servomotors both from SEW-EURODRIVE and other manufacturers. By specifying the motor centering, hole circle diameter and the diameter and length of the motor shaft, the appropriate adapter can be found quickly.

Customized configuration

Exactly in line with your requirements

Customized configuration

Exactly in line with your requirements

Calculation and replacement of individual machine elements to achieve maximum capacity utilization of the gear unit while taking account of the respective application in terms of service life, precision and performance requirements:

Output bearing
Planet gear bearing
Lubricant
Gearing

PxG^® planetary servo gear units:
The best solution for your application

Are you keen to find highly flexible solutions that are in perfect harmony with your applications?