driving axle

Each of the driving axles has its own motor.

This system used a beam whose fulcrum was the driving axle.

The axle base of the driving axles was 2000 mm.

The cylinders were placed above the center driving axle.

Its coal and water tanks jutted out over the rear driving axle.

The four driving axles were therefore each driven by a separate steam-driven motor.

The armatures of the motors were mounted directly on the four driving axles.

The driving axles were fixed rigidly into the locomotive frame.

The jackshaft was located between the first and second driving axles.

The boiler was placed entirely underneath the driving axle.

A letter indicates the number of driving axles.

The biggest problem was the one-piece driving axle.

Each of the three driving axles was powered by a pair of traction motors.

The two driving axle pinions on a locomotive are mounted with a half a pitch difference between them.

The Q class comprised what were effectively 4-10-4s with the driving axles split into two driven groups.

Last letter (lower case) indicates the wheel arrangement, in increasing order of the number of driving axles.

The four driving axles are fixed, but the two in the middle can move sideways for better running characteristics in curves.

However, other 4-2-0 locomotives had the driving axle in front of the firebox, adhesive weight was increased.

By the use of two chains the valve gear was isolated from the movement of the driving axle on its springs.

The locomotive's six 566 hp traction motors were mounted directly to the frame, one above each driving axle.

The pistons powered a single driving axle at the rear of the locomotive, just behind the firebox.

The first and third driving axles were fixed to the frame, the centre one had transverse play to facilitate curve running.

The difficulty is that both of these needs are in conflict, requiring the driving axle position to overlap the boiler position.

Even then, it was necessary to recess a transverse channel across the top of the boiler, so as to provide clearance for the driving axle.

The experimental AA20 4-14-4 locomotive was the only one ever to have seven coupled driving axles.