X Series Industrial Gear Units


The robust X series industrial gear units feature an invertible housing and a very broad gear ratio range. The finely graduated sizes provide additional variability during installation and use.
For users or original equipment manufacturers of machinery and conveyor systems, it is essential that the drives used there are robust, reliable in operation and maintenance-friendly. X series industrial gear units meet these requirements in an efficient manner.
The intelligent, integrated gear unit concept from SEW-EURODRIVE features an especially robust design and low-noise gearing. Its torque and sizes are also very finely graduated. This is why our compact industrial gear units adapt perfectly to all of the conditions required, even if the conditions of use are harsh. In comparison to other commercially available helical gear units and bevel-helical gear units, the gear ratio range of our X series is extraordinarily broad.


  • 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

Gear ratios and torques

Gear unit type Stages Gear ratio
Nominal torque MN2
Helical gear unit X.F..: 2-, 3-, and 4-stage 6.3 – 450 6.8 – 475
Bevel-helical gear unit X.K..: 2-, 3-, and 4-stage 6.3 – 450 6.8 – 475 1)
Bevel-helical gear unit X.T..: 3- and 4-stage 12.5 – 450 6.8 – 175

Areas of Application

  • Construction materials industry, extractive industry, chemical industry, food and feed industries in materials handling systems
  • Environmental industry
  • Lumber industry
  • Paper industry
  • Steel industry