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Generation X.e – Helical Gear Units / Bevel-Helical Gear Units

What is the name of an industrial gear unit that can be adapted precisely to the operating and ambient conditions of a particular application? CORRECT! Generation X.e! Individual and selective improvements to the hardware of our X series and a redesigned, networked calculation landscape are making this possible.

This is what makes the Generation X.e unique:

Red gear unit depicted in graphics as a concept study against a dark-gray backgroundT
  • Optimized bearing preload
  • Thermally improved oil level
  • Optimized bearing preload
  • Optimized tooth flank topology
  • Improved bevel pinion housing

Optimized bearing preload


No wear at input and output shaft

No oil losses

Your benefits:

Higher operational safety

Significantly longer maintenance intervals for your drive system

Thermally improved oil level


We are aware of the fine line between reducing the oil limit and obtaining an optimal heat dissipation

Ideal reduction of the oil bath temperature

Your benefits:

Improvement of the operational reliability

Savings of up to 29% of oil volume

Extension of the oil service life by up to 110%, and so extended oil change intervals

Reduced churning losses by up to 87.5%

Reduced oil bath temperature by up to 8%

Increased thermal limit rating by up to 32%

Optimized bearing preload


Order-specific settings – always the right bearing preload

Reduced formation of heat spots

Low compression

Your benefit:

Increased bearing service life of your gear unit by up to 220%

Increased thermal limit rating by up to 24%

Reduced oil bath temperature by up to 4%

Optimized tooth flank topology


  • Tooth flank topology resistant to displacements
  • Meshing interference can be tolerated better
  • Avoidance of downtimes
  • Increase in system availability

Your benefits:

Optimized bearing preload

Higher operational reliability of the drive when external forces affect the shafts

New calculation landscape combined with optimized tooth flank topology

Increase of the static overhung loads at unfavorable application angle of up to 41%

Lower gear unit noise due to optimized tooth meshing

Improved bevel pinion housing


Optimized oil flow and so greater operational reliability

Higher thermal rating

Higher powers can be transmitted without unexpected machine downtimes

Your benefits:

Basis to obtain a reduction of up to 30% in system power loss

Increased operational reliability and improved cold start behavior

Increased overall limit rating by up to 153%

Generation X.e – efficient. experienced. excellent

Technical data

Close table
Gear unit design Stages Gear ratio i Nominal torque MN2
Helical gear unit
X.F.100e – X.F.250e
2 to 4 stages 6.3 – 400 6.8 – 175
Bevel-helical gear unit
X.K.100e – X.K.250e
2 to 4 stages 6.3 – 400 6.8 – 175
We have stored a table for you here.


Conveyor belts, crane technology, mixers, crushers, and many more

  • In mining
  • In the cement industry
  • In port logistics

What does a networked calculation landscape mean to you?

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The new networked calculation landscape supports you perfectly with the selective configuration of your gear unit . Our industry experts assist you and can now take the highly specific operating conditions of your application into account .

Because the new Generation X.e has been enhanced precisely on the basis of the industry and application experience of both our experts and our customers from the fields of mining, cement, and port logistics. You too can take the consistent path toward ideal and highly efficient operating processes with our intelligent drive solution.

Avoid an early oil change by having products delivered complete with SEW GearOil

Having our Generation X.e industrial gear units delivered complete with SEW GearOil saves you the costs and resources associated with an early oil change. The special additives in SEW GearOil bind the abrasive particles so effectively when running in Generation X.e gear units that, even after 500 hours of operation, there is still no need to remove them.

Find out more about SEW GearOil.

We'll be glad to assist you.

Do you have questions about our Generation X.e? Just fill in the form below and send us a message!

We'll be glad to assist you.
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Do you have questions about our Generation X.e? Just fill in the form below and send us a message!

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