momac Getriebe
Instandsetzung und Modifikation eines NGC Getriebes SDJ 95,m hier nach der Reparatur

Repair and modification of an NGC gearbox SDJ 95 from the plastics industry

Power: 450 kW
L / D ratio: 24/48
Cause of failure:
The dimensioning of the axial bearing of the output shaft was not designed by the manufacturer in accordance with the actual performance requirements, therefore gearbox failure after less than 1 year.

Additional information on repairing the gearbox:

Scope of extruder gear repairs:

  • Dismantling and damage analysis of the extruder gear
  • Measurement of all transmission components
  • Redesign of the rolling bearing and toothing
  • New production of the damaged gear parts with modifications
  • Renewal of the gear components, including the use of higher quality materials (18 CrNiMo 7-6) and performance-optimized gear geometry
  • Modification of the storage to significantly increase the service life
  • Gear assembly with quality rolling bearings from well-known manufacturers (SKF, INA, FAG)
  • Adjustment of the extruder gear
  • Test run – including documentation of the temperature curves

You can find more information about our services relating to industrial gear units at

Call us on +492841-1802.0 to speak to our gearbox experts.

We are looking forward to your contact.

  • Gear manufacturer:

    Cenmen Equipment Corp. Ltd. / NGC- Nanjing Gear Corp.

  • Type:

    SDJ 95

  • Location:

    Extruder gear from a twin screw extruder

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condition monitoring extruder extruder gearbox NGC extruder gearbox spareparts NGC gearbox repairwork twin screw extruder