consists of a chuck mechanism, impeller and high speed bearings. A cartridge is either encased in a steel housing that cannot be taken apart. Or the bearings and the chuck mechanism are a one piece unit. A cartridge is non-rebuildable. The bearings cannot be removed and replacement of the whole cartridge is the only solution to bearing failure.
a part of a slow speed electric handpiece that is located at the bottom of the handpiece. This part connects to the motor and to the drive shaft helping the series of gears to move thus turning the bur.
the dog gear is roughly 4 centimeters long
Also known as a gasket, an oring is a type of seal. O-rings are found in all handpieces. They are found in the back end of handpieces and seals all parts of the air/water lines. They are also found in the heads of handpieces sealing the air in the handpiece helping the impeller turn.
Chip Air/Water Lines
They are duel lines found in most high speed and slow speed electric handpieces with internal water. The air line carries air to the turbine/cartridge giving the high speed handpiece it’s torque. The water line carries water to the spray ports on the front of the handpiece head.