ISO 9409-1 flange vs. male shaft

1. For stiffness

In most industrial machines, a flange connection is:

• more rigid,

• more stable,

• and less sensitive to micro-movements than a male-shaft + coupling + clamping interface.

2. For safety

In the presence of vibrations, a male shaft clamped with a hub can experience:

• microscopic slippage,

• progressive misalignment,

• fretting,

• or gradual loosening (if the assembly is not perfectly executed).

An ISO flange, on the other hand, eliminates this failure mode because:

• it provides rigid axial and radial support,

• the connection is geometrically constrained,

• there is no interface likely to slip,

• and the load is distributed across several screws secured with thread-locker.

3. For convenience

The ISO 9409-1 flange is also very convenient for mounting your AGV / AMR wheel!