Electric motor balancing

Balancing electric motors is critical because it eliminates destructive centrifugal forces and vibration, preventing premature wear of bearings and windings, reducing noise, and ensuring maximum efficiency and equipment safety.

This series of machines can be used to balance such parts

Common types of electric motors requiring balancing:
  • Squirrel-cage induction motors
  • Wound-rotor induction motors
  • High-voltage electric motors
  • Brushed DC motors
  • Servomotors
  • Traction motors
  • Explosion-proof electric motors
  • High-speed spindle motors
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Achieving Perfect Balance for Extended Motor Life and Performance

VTM precision balancing eliminates bearing damage, noise, and efficiency losses caused by rotor mass asymmetry in electric motor assemblies.

Specific Feature
Many anchors have short journals

Anchor shafts often have limited space for contact with the supports, which requires the use of narrow roller blocks (18 to 35 mm wide) or special prisms for proper installation on the machine.

Specific Feature
A significant initial imbalance

After repair or rewinding, armatures often exhibit significant initial imbalance, which causes critical vibrations during startup and requires the machine’s measurement system to be capable of filtering the signal and handling heavy loads.

Specific Feature
Presence of installed bearings

Anchors are often sent for balancing with bearings already mounted on the journal shafts, which requires the machine to be capable of balancing “in-bearing” to save time on assembly and disassembly.

Specific Feature
Low journals stiffness

The surface of the armature shaft may not be hard enough, which creates a risk of “rolling” (deformation) upon contact with the rollers; this can be resolved by using rollers with a larger “barrel” radius or a self-aligning feature.

Other options required for balancing electric motor
  • The ability to balance using “in-house bearings”
  • Height adjustment mechanism for roller blocks
  • Soft-bearing system with cylindrical rollers for heavy rotors
  • Quasi-static unbalance
  • Drilling module for eliminating imbalance

Find out which products fit your requirements

  • 9D716
  • 9D717
  • 9D718
  • 9K717
  • 9K718

VTM Group delivers balancing solutions for your parts — not just machines

VTM Group engineers balancing solutions tailored to the specific design of your rotors and your company’s manufacturing processes.
Right solution for your task

We analyze your drawings, calculating the required balancing accuracy and process productivity before you purchase the equipment.

Correct machine selection

Our engineers select the optimal standard model or propose a modified or special-purpose machine designed for your specific part.

Custom tooling

We design and manufacture all necessary fixtures and adapters to fit your complete product range.

Proven balancing process

We provide a step-by-step methodology and practical recommendations tailored specifically to your products.

Free operator training

We train your team at a convenient time, considering your production specifics.

On-site commissioning

We perform complete installation, startup, and calibration at your facility, ensuring you can begin operations without delay.

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Submit a request, and our manager will contact you to provide more information.

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