




Micromotors, Handpieces and Spare Parts
Brushless and brush micromotors, 35K and 45K handpieces, and the carbon brushes, armatures, chucks and bearings that keep them turning.
The Problem This Section Solves
A micromotor that stops turning stops the bench. The real cost is not the motor, it is the week the technician spends waiting for a carbon brush.

Dental Lab Micromotors
Bench and knee-operated micromotors for grinding, trimming and finishing at the model bench.
12 products →
Micromotor Handpieces
35K and 45K straight handpieces and E-type motors for Marathon, Strong and YouDent control boxes.
16 products →
Micromotor Spare Parts
Carbon brushes, armatures, chucks, cords, bearings and foot pedals for Marathon and Strong micromotors.
9 products →A Sample of What Is Catalogued Here
Marathon-III Micromotor
Marathon Multi 600 Brushless Micromotor
Marathon Handy 700 Brushless Micromotor
Marathon-N7(New Type) Micromotor
Marathon Handpiece BM50S1
Micro NX Handpiece 170SH(50K)
Marathon Handpiece SM45C(45K)
Marathon Handpiece SH37LN (45K)
Micro Ball Bearings
Carbon Brush for Marathon
Carbon Brush for Strong
Armature for Marathon(35K)Micromotors and Handpieces: Common Questions
What is the difference between a brushless and a brush micromotor?
A brushless motor has no carbon brushes to wear, so torque stays constant and there is no brush replacement interval. A brush motor costs less to buy and the brushes are a cheap consumable, but torque drops as they wear. Brushless models in this category include the Marathon Multi 600 and Marathon Handy 700.
What does 35K or 45K mean on a handpiece?
It is the maximum speed in revolutions per minute the handpiece is rated for, so 35K is 35,000 rpm and 45K is 45,000 rpm. The handpiece must be matched to a control box able to drive it.
How often should carbon brushes be replaced?
It depends on hours of use and load, not on a calendar. The practical signal is torque: when the motor slows noticeably under a cut it used to make easily, inspect the brushes. Labs running a full day usually keep a spare set on the shelf.
Can I mix items from across Micromotors and Handpieces in one order?
Yes. Everything in this section ships from the same place, so a mixed order costs one freight charge rather than several.
Quote the Whole Micromotors and Handpieces Section
Tell us which categories you are buying for and we will quote them together, consolidated into a single shipment from Shanghai.