Figure 7-2.--Demountable flange wheel.
other may be designed to carry a lighter load. Also, the
DEMOUNTABLE FLANGE WHEEL
wheels may be designed for use with different types of
The demountable flange wheel is made so one
brake assemblies.
flange of the wheel can be removed to change the tire.
TYPICAL WHEEL ASSEMBLY
The flange is held in place by a lockring.
The wheel is balanced with the flange mounted on
A complete wheel assembly is shown in figure 7-3.
the wheel. Then, both the wheel and flange are marked.
The wheel casting is the basic unit of the wheel
To ensure proper balance of the wheel during assembly,
assembly. It is to this part that all other components are
the two marks should be lined up. Figure 7-2 shows a
assembled and upon which the tire is mounted.
typical demountable flange wheel. This type of wheel is
The demountable flange is attached to the wheel to
commonly used on the main landing gear.
simplify tire removal and installation. The demountable
The similarity of one wheel to another in size and
flange lockring secures the flange to the wheel. The
shape is not proof that the wheels can be interchanged.
flange is fitted into a groove in the wheel casting.
One wheel may be designed for heavy duty while the
Figure 7-3.--Typical wheel assembly.
7-2
