In this common locomotive suspension method, one side of the electric traction motor is supported by bearings riding directly on the driving axle. The other side is suspended from the truck frame by a flexible mount. This keeps the motor pinion gear perfectly aligned with the axle bull gear regardless of suspension travel.
Heard on the job
You get a lot of unsprung weight with an axle-hung motor, which beats up the track at high speeds.
Also heard as
- nose-suspended