Question: What Is Stub Axle?

What does a stub axle do?

A stub axle or stud axle is either one of two front axles in a rear wheel drive vehicle, or one of the two rear axles in a front wheel drive vehicle. In a rear wheel drive vehicle this axle is capable of angular movement about the kingpin for steering the vehicle.

What are the types of stub axle?

As The Engineers Post explains, there are four types of stub axle: Elliot: This type uses a kingpin, a yoke, and a cotter to connect to the front axle. Reverse Elliot: This type has the opposite arrangement of a standard Elliot stub axle. Lamoine: This stub axle type has an L-shaped spindle instead of a yoke- type hinge.

What are stub axles made from?

For maximum strength to weight ratio, a stub axle needs to be forged from steel. Forging will allow the stretched fibres in the steel to follow the lines that will carry load when in operation. You could start with a short round bar. Upset or spread one end to make the flange, while thinning and lengthening the shaft.

What is a stub shaft?

These bearing supported stub shafts allow side-load to the back of an engine while simultaneously preventing any load transmission back to the crankshaft. Many industrial engines do not allow side loads on their engine crank shafts (pulley applications) but this is a suitable solution to a common problem.

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How do stub axles work?

A stub axle is a sub-assembly of a front axle beam upon which the road wheel mount. Stub axle is connected to the front axle using kingpin. These stub axles turn about the kingpin, which is light drive fit in the axle beam eye, located and locked by the taper cotter pin.

How do you weld a stub axle?

Tack weld through the plug weld holes to secure the back end of the stub axle. Set your welder up so that you can lay a good hot penetrating weld (practice on some scrap steel) and fully weld around the stub axle and axle tube. Fill the plug weld holes up until the weld is flush with the top of the axle tube.

What is 3 axle vehicle?

And also, a 3 axle vehicle has 3 axles. The examples of a 3 axle vehicle would be many straight trucks with a pair of rear axles which carries the extra weight of the cargo, a Greyhound bus, and most tractor units for semitrailers.

What causes a broken axle?

A vehicle does not get far, or anywhere if it has a damaged drive axle. Axles are rods or shafts that connect to the drive wheels. Even though axles are built to be tough, an overloaded vehicle can sometimes crack or break an axle. Bad carrier bearings or bad potholes are other common causes of axle problems.

What are the types of front axle?

There is two types of front axles: (a) Dead front axle, and (b) Line front axle. Dead axles are those axles, which donet rotate. These axles have sufficient rigidity and strength to take the weight. The ends of front axle are suitably designed to accommodate stub axles.

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How does a front axle work?

Modern front -wheel drive cars typically combine the transmission (gearbox and differential) and front axle into a single unit called a transaxle. Each half axle connects to the wheel by use of a constant velocity (CV) joint which allows the wheel assembly to move freely vertically as well as to pivot when making turns.

What is axle drop in a front axle?

A dropped axle is a straight front axle that has been altered or built to drop a vehicle’s ride height. This makes the vehicle sit lower and places the front suspension nearer to the ground.

What is the definition of an axle?

1a: a pin or shaft on or with which a wheel or pair of wheels revolves. b(1): a fixed bar or beam with bearings at its ends on which wheels (as of a cart) revolve. (2): the spindle of such a beam.

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