Patent attributes
An extendable axle with wheels on a common centerline preferably includes a base housing, a left axle device, a right axle device, a left extension cylinder and a right extension cylinder. The left axle device slides into a left side of the base housing and the right axle device slides into a right side of the base housing. The left axle device preferably includes a base tube, a steering knuckle, a drive motor and a steering cylinder. The steering knuckle is pivotally engaged with an end of the base tube. The drive motor is retained on the steering knuckle. The steering cylinder pivots the steering knuckle. The right axle device is the left axle device rotated 180 degrees. The left extension cylinder extends the left axle device. The right extension cylinder extends the right axle device. The left drive motor and the right drive motor are on the same centerline.