Generation X.e helical gear units / bevel-helical gear units

With 23 finely graduated sizes, the helical and bevel-helical gear units of the X..e series cover the torque range from 7.2 to 500 kNm. The extensive modular program and the large number of predefined additional equipment and options offer a high degree of flexibility for adaptation to the application situation. Regardless of whether you are a plant manufacturer or operator - the X..e series offers the right solution for every requirement.

One standard product – numerous possibilities

Industrial gearboxes semi-transparent in a hall with concrete look and power scale of blue and green luminous bars
Performance enhancement - Generation X.e goes one step further
Performance enhancement - Generation X.e goes one step further

For operators or original equipment manufacturers of machines and plants, it is crucial that the drives used there are robust, reliable and easy to maintain. The industrial gear units of the X..e series efficiently meet these requirements.

The intelligent, universal gear unit concept impresses with its fine size graduation, high installation variability and the large number of additional modular features and options such as motor adapters, backstop, various sealing and shaft systems, and many more. The wide ratio range of 6.3 - 450 and the robust design make the All-Rounder the right choice in many industries and applications. Whether crane, conveyor belt or mixer - with the X..e series and the industry know-how of SEW-EURODRIVE, you are opting for maximum availability and a reliable partner. And if our modular system does not have the right solution for you, we will customize our gear units for you.

X.e goes one step further...

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With the performance increase, Generation X.e expands the previous limits of industrial helical and bevel helical gear units, offering new possibilities in the areas of performance, safety and efficiency.

The modular Generation X.e system – benefits for you

  • Global availability
  • Delivery times
  • Detailed calculation
  • Condition monitoring
  • GearOil by SEW-EURODRIVE
  • Drive package / system components

Global availability

  • 4 manufacturing and 13 assembly plants ensure global availability of the X..e series
  • Additional service centers ensure the service capability of the X..e series

Delivery times

  • Short delivery times, even in the case of customized adaptations.
  • Even in the event of a plant shutdown, a replacement gearbox can be delivered in a short time.

Detailed calculation

  • Thanks to the networked calculation landscape, each drive is simulated and calculated with the individually required drive data.
  • The intensive research and testing at SEW-EURODRIVE makes it possible to use the latest calculation models and calculation methods advantageously in series products at an early stage.

Condition monitoring

  • The DriveRadar® IoT Suite monitors the drive and automatically notifies in case of critical condition changes.
  • The system calculates the remaining service life of the bearings, gears and oil and predicts incipient damage at an early stage.


  • Boosts gear unit performance
  • Reduces rolling and sliding friction
  • Improves efficiency and wear resistance
  • Eliminates the need for an initial oil change after 500 hours of operation

Drive package / system components

You benefit from a perfectly coordinated overall package offering the best value for money, with SEW-EURODRIVE solving your drive task from start to finish. To provide this service, we collaborate with renowned manufacturers to expand our product portfolio.

Your advantages

  • Power

    Increase in nominal torques even with additional external loads for a reduction in size. Result: lower investment costs and smaller installation space in the plant.
  • Safety

    Installation individual rolling bearings with short delivery times such as thermal design according to simulated ambient conditions. Result: less maintenance intervals and higher plant availability.
  • Efficiency

    A sustainable drive solution thanks to extensive adaptation and optimization options. Result: reduced power loss, lower oil demand, and lower total cost of ownership.

This is what makes Generation X.e unique:

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Assembly of a Generation X.e industrial gear unit

Our decades of experience in the construction of large gear units have prompted us to selectively revise the X series.

See in this video which innovations make Generation X.e so unique. Learn how you benefit from the product optimizations and how the targeted modification of the product properties leads to a customized solution for them.

Generation X.e – efficient. experienced. excellent


Properties and features of the X..e series industrial gear units

  • Independent industrial gear unit platform with 23 sizes
  • Helical gear units and bevel-helical gear units
  • Single-piece and split gear unit housing
  • Invertible gear unit housing
  • Universal mounting positions
  • Distinctive modular technology
  • Diverse predefined optional equipment and options
  • Customer-specific adaptations possible

Technical data

Close table
Gear unit design Stages Gear ratio i Nominal torque MN2
Helical gear unit
X.F.100e – X.F.320e
2 to 4 stages 6.3 – 450 7.2 – 500
Bevel-helical gear unit
X.K.100e – X.K.320e
2 to 4 stages 6.3 – 450 7.2 – 500
Bevel-helical gear unit*
X.T.100e – X.T.250e
3 and 4 stages 12.5 – 450 7.2 – 185
  1. Drive shaft top or bottom
We have stored a table for you here.

Application-specific industrial gear units


Our helical and bevel-helical gear units are used wherever reliably high torques are required. The modular design with many additional features and options allows the X..e series to be individually adapted to your application-specific requirements.

In use worldwide:

  • Mining and open pit mining
  • Recycling industry
  • Crane technology
  • Water and wastewater technology
  • Steel industry
  • and many more

We're happy to help.

If you have any further questions about our Generation X.e, simply complete the form below and send us a message.


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Gray oil barrel, two red oil canisters and two lubricant cartridges against a gray concrete background

Lubricants for gear units

Our lubricants – the best possible protection for your gear unit.

Industrial gear units to go

Industrial gear units to go

"Assemble to order" gear units, which require no design adaptations, leave the factory just five days after receipt of the order.

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