Thery of Machines Laboratory Equipment

Static and Dynamic Balancing Apparatus




The “ LabTek” experimental unit can be used to demonstrate imbalance and the balancing process clearly. The difference between static and a dynamic imbalance can be shown. Imbalance is determined and balanced by appropriate measures.
The main element of the experimental unit is a smooth shaft to which four variable imbalance masses are attached at any angular and longitudinal position. The shaft is mounted on ball bearings. A variable-speed electric motor and a belt drive it. The speed of the shaft is displayed digitally.

In order to determine the imbalance, a defined external moment is applied via an additional pulley with weights. This moment is compared to the moment of the imbalance masses. A transparent cover protects against contact with rotating parts and allows a clear view of the shaft. Unwanted vibrations are suppressed by using elastic bearing for the foundation.

Static and Dynamic Balancing Apparatus


  • Demonstration of imbalance vibrations at different speeds
  • Comparison of static, dynamic or general imbalance
  • Determine an imbalance
  • Perform a balancing operation
  • Representation of the fundamental processes involved in balancing



  • Number of imbalance masses: 4 
  • Total imbalance: 880cmg
  • Measuring ranges
    speed: 0…1400min-1
  • Required for operation

230V, 50Hz, 1 phase
230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase


  • L x W x H (approx.): 600 x 300 x 600 mm
  • Weight: 32kg

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