The following guidelines represent a general approach to handpiece maintenance. Always follow the suggested maintenance procedures supplied with the handpiece, especially during the warranty period — it is critical to avoid premature failure of newly installed parts. The same principles of preventive care apply to dental endomotors, physio dispensers and other small electronic equipment that we also repair & service.
A high-speed handpiece bearing spins over 400,000 rpm. The more friction, the more wear and tear on parts. Lubricating the handpiece (including the bearings) reduces friction, prolonging bearing life. Because bearings spin so fast, they are typically the first part to deteriorate — much like tires on a car.
Lubrication also cleans the entire handpiece, flushing debris out of the chuck mechanism. When debris is lodged in the handpiece, air pressure pushes it into bearings & chuck, causing damage. If you are using an ultrasonic for cleaning, we recommend lubricating your handpiece twice (steps A through D of the Handpiece Maintenance Procedure) to remove water and prevent rust build-up.
If the autoclave temperature goes above 132°C, it can literally melt the O-rings and bearing retainer inside the handpiece. The result: air loss, low torque and water leaks. Keep your autoclave calibrated at 130°C for maximum handpiece longevity.
One of the biggest bearing-failure causes we see is reused burs. Reused burs are dull & damaged, making the operator apply extra pressure — this puts extra stress on the bearing retainer and fails bearings prematurely. Reused burs are often slightly bent, causing micro-vibrations that damage the retainer. If reuse is unavoidable, avoid sterilisation compound agents that leave residue and gum up the chuck.
Sterilize compound agents come in many forms — compounds, wipes, agents and sprays. This compound leaves a residue on the bur which transfers to the chuck, causing it to gum up with debris and preventing proper seating. The cost of a new bur is far less than always repairing your handpiece.
Lubricate before and after each autoclave cycle — especially on high-use days.
Stay within manufacturer-specified air pressure. Excess pressure shortens bearing life.
Send handpieces in for a professional assessment every 6–8 months, even if they seem fine.
Early assessments save repair costs. Ship to us — we'll diagnose honestly.
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