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What is Dynamic Balancing?

Dynamic balance definition: “Dynamic balancing is a way of balancing machines by rotating parts quickly and measuring the imbalance using electronic equipment. The imbalance measured can then be corrected by adding or subtracting weight from the rotating parts until the vibration is reduced.”

Basically, all machines have some form of residual vibration. Enormous vibration in rotating machinery can cause high levels of noise and more importantly, significantly reduce the life of components. So, the ideal thing to do would be to remove all causes of vibration and allow the machine to run completely smooth. The process of balancing is the removal or addition of weight to the device, so that this effective mass centre approaches the true axis.

In addition to dynamic balance, there is also static balance. When a part is statically balanced, the centre of gravity is on the axis of the rotation. This means the part will stay stationary at a horizontal axis, without the application of braking force. It also has no tendency to rotate due to the force of the gravity.

Our Dynamic Balance Machine and Procedures

We provide dynamic balancing services to companies in the UK who have rotors, fans, impellers or shafts that need to be balanced dynamically. Our dynamic balancing machine can handle loads of up to 500Kg, up to 3 metres in length and can balance them down down to ISO G1, which is the finest grade of balance. We can balance any item up to a service speed of 100,000 Rpm.

After the job is completed, we will deliver all items back to you, with the addition of a balancing certificate highlighting the initial and residual out of balance readings.

 

Reasons you Might Require Dynamic Balancing

  • To remove dirt build-up
  • Impeller erosion
  • Internal part corrosion
  • Casting imperfections, voids and inclusions
  • Mismatched lengths of keys and keyways
  • Thermal and mechanical distortion
  • Shifting mass due to loose parts or poorly tapered hub fits
  • Previous balancing attempts have been unsuccessful
  • Parts haven’t been assembled properly

Benefits of Component Balancing

  • Noise reduction
  • Vibration reduction/elimination
  • Increased performance
  • Extended motor life

Dynamic Balancing Service

At Bellwood Rewinds Ltd, we pride ourselves on the in-house dynamic balancing service we offer to customers throughout the UK. Our balancing service can help to reduce the wear and tear of moving components. Keeping the components of your machinery well balanced can help to avoid machinery breakdown; saving you money in the long run.

Our Cemb Hofmann machine can assist with all your balancing needs. The machine itself can balance any rotating part up to 100,000 rpm and meets ISO standards. The technology allows us to identify wearing parts to create a more balanced object, which in turn means improved quality and productivity of machinery.

(How balancing machine works: 1=hard-bearing, 2=soft bearing, 3=spring, 4=vibration sensor, 5 & 6=balancing planes, 7=rotor)

Balancing your parts

The balance service we offer covers everything from fan balancing to shaft balancing and much more. Whether you need individual balancing or bulk balancing, our team of specialists are on hand to help. With a highly proficient dynamic balancing machine, we can be sure to provide a professional and efficient service, each and every time.

We typically carry out fan balancing, shaft balancing and rotor balancing, but we cover a vast range of other parts. If the part rotates then we’ve probably already balanced it.

As one of the UK’s leading providers of dynamic balancing, we are the perfect partner to help balance your parts. Offering a nationwide dynamic balance service (carried out in-house at our balancing facility), there’s no reason why you would look elsewhere to have your parts balanced.

Call for more information

We offer 24/7 Emergency Balancing Services in-house at our North East base. No matter what time of day it is, one of our trusted engineers will always be on hand to take you call and talk to your about your balancing needs. We have decades worth of valuable experience from working within the generator and motor repair industry, and have balanced a diverse range of rotating items in this time, including rotors, impellers, shafts and fans.


FAQ’s

I’ve heard balancing can mask other problems, is the true?

No, this isn’t true. In fact, balancing can’t be carried out on things that have inherent faults. In addition to this, a balance that incorporates a vibration survey often identifies other vibrations and can pinpoint the vibration of specific parts. Dynamic balancing can help to ensure your parts are working as they should be.

What can balancing be carried out on?

Our dynamic balancing machine allows us to balance a range of parts, including fans, rotors, shafts and much more. If a part rotates then we’ll be able to balance it.

Who can benefit from balancing services?

We offer our dynamic balancing services to customers throughout the UK. Our in-house balancing service means we can help both local and national customers.

What’s the difference between static and dynamic balance?

Dynamic is when a part rotates, and needs balancing to stop rotation. Static is when it stays still. For more information we have an guide on the differences between static and dynamic balance.

What is dynamic balance?

Dynamic balance refers to the way machines are balanced by rotating parts quickly and measuring the imbalance using electronic equipment. The imbalance measured can then be corrected by adding or subtracting weight from the rotating parts until the vibration is reduced.


If you require dynamic balancing advice, please don’t hesitate to get in touch. We’re always here to take your call, deal with any inquiries and answer any questions that you may have.