Internal gears & External
As the name suggests
internal gears have the teeth cut on the inside of a cone or
cylinder. Conversely an external gear has the teeth cut on the
outside of the cylinder or cone.
Internal Gears possess
several advantages when properly applied. One such advantage is
reduced sliding action. The corresponding working surfaces of
the teeth of an internal gear and pinion are more nearly of the
same length than is the case with an external gear and pinion
having the same tooth ratio and tooth length. Therefore the
relative slippage of the teeth is less in the case of the
internal. This point presents one of the advantages of using
internal Gears. The sliding action of one tooth over another
causes friction; and as friction results in tooth wear, a
reduction in the amount of sliding action is desirable.
B & H Gears are specialists
in the production of both internal and external gears. Click on
the contact us link or ring us directly on 0161 627 4610.