Industrial Gearbox Service & Maintenance


Kumera Service Team is at your disposal for all kinds of maintenance and upgrading works with a wide range of services. Those are:

  • Inspections on site or at our Service Center
  • Professional inspection report including proposal for upgrading
  • Refurbishment or upgrading
  • Condition monitoring (Guard Gear)
  • Guaranteed improved measures with the highest expertise

Benefits to make the difference:

  • Latest manufacturing and measuring equipment
  • Advanced gear technology for optimization of load capacity and efficiency
  • High expertise in specific industries
  • Decades of gear manufacturing experience

Press Drives Applications

Steel & Aluminium Rolling Mills

Marine Applications

Rubber and Plastic Industries

Cement Mills and Mining

Agitators in Chemical Industry

Kumera Gearbox Lifecycle Management

Condition monitoring:

Kumera Guard Gear online condition monitoring

  • Vibration
  • Lubrication oil
  • Quality
  • Level
  • Temperature
  • Rotation speed
  • Connection options:
  • Ethernet
  • 3G/GPRS
  • Bluetooth (PAN)

Preventive maintenance:

  • Lifecycle Management Contracts
  • Inspections and preventive maintenance
  • Measurements
  • Vibration
  • Stray current (bearing current)
  • Alignment checking
  • Inspections
  • Thermal camera inspection
  • Endoscope inspection
  • Process parameter analysis
  • Report of results with recommendations

Detailed listing on measures to cover Kumera / Keller made and other makers’ gearboxes

“Classic” Service:
• Spare parts delivery
• Drop-in replacements
• Gearbox upgrades
• Measurement
• Inspection
• On-site or onboard repair
• Preventive inspections
• Maintenance

• Finite-Element-Analyses (FEA)
• Torsional vibration analyses
• FEA Workbench tools

o RIKOR (load distribution and tooth modification)
o Heat balance calculation
o Efficiency calculation

• Hydraulic systems
• Bearing calculations
• Root Cause Analyses

Testing capabilities:
• Endoscope inspection
• Oil analyses
• Vibration measurement
• Laser adjustment
• Noise measurement
• Surface crack testing VT/PT/UT
• Gear measurement up to ø4000mm
• Hardness measurement
• Leakage testing
• 500kW test rig capacity

Resources for special needs

Preventive maintenance:

  • Scheduled inspections during standstills (also in weekends and holidays)
  • Quick and professional emergency assistance
  • SCC-trained personnel
  • Most of the vital components & steel raw materials on stock
  • 24/7 Service Hotline +49 2241 988 988

24/7 Service Hotline
+49 2241 988 988

Large number of succesful refurbishment cases


  • Recalculation
  • Re-design

Bearing life Lh10

 Actual State
3000 kW
Actual State
4000 kW
4000 kW
3340 kW
load collective
Drive shaft – drive side85.91133.02850.01991.13396.253
Drive shaft – output side93.51035.89046.07783.76788.456
Intermediate shaft – drive side339.510127.625135.349253.744268.774
Intermediate shaft – output side85.21932.40564.224118.243125.016
Output side – drive shaft52.43920.09834.39261.74065.109
Output side – output side77.69430.30731.13154.72957.595
Output shaft – axial bearing74.07961.48561-48569.44870.163

Case study - Cross Roll Piercing Mill Gearbox

Certifications and Quality Memberships

  • Quality management system according to DIN EN ISO 9001:2015
  • Certification according to SCC** 2011 (Safety Certificate Contractors)
  • Certification by Bureau Veritas
  • Membership Forschungsvereinigung Antriebstechnik e.V. (FVA)
  • Membership VDMA


  • Kumera Getriebe GmbH provides comprehensive maintenance and service
  • Production facility for all manufactured parts
    • High quality original spare parts
    • High standard quality management
  • Repair and service for all makers’ gearboxes
    • Other makers’ bevel, helical and planetary gearboxes, even without original drawings or BOMs
  • Optimisation with advanced engineering
    • Re-design of gears and bearings
    • Re-design of lubrication systems
    • Improvement of load density
  • Professionally trained service personnel
    • On-site inspections, maintenance and service worldwide through Kumera Service Centers
Contact Sales Regarding Industrial Gearbox Service & Maintenance

Kumera Power-Plaza:
Online Gearbox Selection Portal

Sales, Service and Maintenance

We at Kumera are happy to serve customers world-wide. Kindly do not hesitate to contact us in any gearbox related issues.

Heavy-Duty Custom Built Gearboxes