• Industrial Balancing Services

Propshafts balancing & repair.

We offer services on Propshafts such as lengthening or shortening. Balancing of the shaft itself, fitting and removal of universal joints.

Side shafts

We offer a refurbishment of side shafts, which involves welding and machining to size for the new bearing which we also press in the same process. Or just a removal and press of the new bearing if the shaft is not worn.

Crankshaft balancing

We offer the most cost effective crankshaft balancing in kzn and we pride ourselves in our expertise with this service and we are confident that with the right accessories needed we can balance any crankshaft from car to truck horses.

Static Balancing

STATIC out of balance is unevenly distributed mass on the rotating objects axis causing the heavier side of the object to fall to the lowest position when it settles at the point of rest. A form of unbalance that can be corrected by adding a single correction weight directly opposite the heavy spot on the rotor. (180 degrees from the unbalancing weight). This type of balance can be corrected by removing the weight or by adding an equal weight directly opposite. Either measure would move the center of mass back to the centreline of the part.

Static unbalance can be detected by setting the rotor on knife edges and letting the heavy spot bottom out. Dynamic unbalance cannot be detected in this manner.

Dynamic Balancing

DYNAMIC out of balance can only be detected when the object is rotating. It is the result of unevenly distributed masses in two or more planes of rotation. This type of unbalance requires at least two different planes along the shaft to correct. To create a true dynamic unbalance on a centrifugal fan wheel, first add a weight on the inlet side of the fan wheel. At the same time add an equal weight (at the same radius) on the back side of the wheel with the second weight rotated 180 degrees from the first weight. This is also called “couple unbalance”. To correct this type of unbalance, one must compensate for both eccentricity (caused by static unbalance) and wobble (caused by couple unbalance). In practice, any dynamic unbalance can be corrected by making adjustments in two axially separated planes.

Dynamic Balancing

DYNAMIC out of balance can only be detected when the object is rotating. It is the result of unevenly distributed masses in two or more planes of rotation. This type of unbalance requires at least two different planes along the shaft to correct. To create a true dynamic unbalance on a centrifugal fan wheel, first add a weight on the inlet side of the fan wheel. At the same time add an equal weight (at the same radius) on the back side of the wheel with the second weight rotated 180 degrees from the first weight. This is also called “couple unbalance”. To correct this type of unbalance, one must compensate for both eccentricity (caused by static unbalance) and wobble (caused by couple unbalance). In practice, any dynamic unbalance can be corrected by making adjustments in two axially separated planes.

Dynamic and Static Industrial Balancing

At Dudley’s Balancing we offer Dynamic and Static Industrial Balancing, on site vibration analysis and fault investigation.

Our workshop possesses a 3m long Schenck H40 Hard Bearing Industrial Balancing machine with a CAB690 measuring unit that enables us to assess and balance a variety of industrial rotating equipment. We also supply a ‘real time’ Certificate of Balance report upon request.

We balance:

  • Crankshafts
  • Driveshafts and Tailshafts
  • Electric Armatures
  • Electric Rotors
  • Fan Modifications
  • Fly Wheel and Pressure Plates
  • Industrial and Truck Components
  • Industrial Fans
  • Pulleys
  • Pump Impellers
  • Pump Rotors
  • Printing and Process Rollers
  • Turbine Fans
  • As well as General Engineering

Dynamic Balancing of high speed rotating components increases bearing life, achieves smoother running conditions, increases service life and enhances the quality of the finished product.

To ensure quality workmanship, Indrotech periodically service and calibrate all balancing machines to continue to provide optimal productivity, accuracy and reliability.

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