What is inboard wheel half?
Inboard Wheel Half to engage and rotate the rotors of a disc brake. Both wheel halves contain a bearing cavity formed into the center that accepts the polished steel bearing cup, tapered roller bearing, and grease retainer of a typical wheel bearing set-up.
What are the two general types of wheel used on aircrafts?
The two piece wheel construction, are of 2 types, removable rim or split wheel. 12. INBOARD WHEEL HALF Wheel halves are not identical. The primary reason for this is that the inboard wheel half must have a means for accepting and driving the rotor(s) of the aircraft brakes that are mounted on both main wheels.
What is the function of the O-ring between the wheel halves?
O-rings are used to create a tight seal between assembled parts to prevent fluids or air from passing from one part to another. The simple little O-ring is often one of the most important components in finished goods. Without properly installed O-rings leaks and product failures could occur.
What are aircraft wheels made from?
The typical modern two-piece aircraft wheel is cast or forged from aluminum or magnesium alloy. The halves are bolted together and contain a groove at the mating surface for an o-ring, which seals the rim since most modern aircraft utilize tubeless tires.
Which type tire is found on older aircraft and may be considered obsolete?
These are smooth profile tires that are obsolete for use in the modern aviation fleet. They may be found on older aircraft. Type VIII aircraft tires are also known as three-part nomenclature tires.
Why do tire and wheel manufacturers often recommend that the tires on split rim wheels be deflated before removing the wheel from the axle?
Why do tire and wheel manufacturers often recommend that the tires on split rim wheels be deflated before removing the wheel from the axle? As a safety precaution in case the bolts that hold the wheel halves together have been damaged or weakened.
Do helicopters have landing wheels?
When it comes to landing gear, helicopters have two basic types: skids and wheels. In very small helicopters (such as the Robinson) ground handling wheels can be attached to the skids and the helicopter moved around by one person.
Where would you most likely find cracks in a wheel bolt?
Wheel half tie bolts are under great stress while in service and require inspection. The tie bolts stretch and change dimension usually at the threads and under the bolt head. These are areas where cracks are most common.
Why do airplane tires smoke on landing?
Answer: The smoke is the result of a wheel which is not turning in flight making contact with a stationary runway. The wheel must accelerate to the landing speed very quickly. During that acceleration, there is a short time when the tire is skidding, which produces the smoke.
How much does a plane TYRE cost?
The cost of the tyres is 1,500-$1,800 USD but they are not the property of the airline. They are paid for per period of 400 landings and are then returned to the manufacturer for recycling.
What is the greatest enemy of aircraft tires?
It’s less in summer as heat is the worst enemy of tyres, because within three seconds of touching down on a runway, they heat up to temperatures higher than that of water boiling.
What are the two halves of an aircraft wheel?
Our aircraft wheels feature two halves: an inboard half and an outboard half. Although these are two parts of the same whole, they are far from identical. In fact, both the inboard and outboard halves serve unique purposes for optimal performance of the entire wheel construction.
What kind of alloys are used in aircraft wheels?
Our standard, two-piece aircraft wheels are forged with high-grade aluminum or magnesium alloys. This two-piece design features an inboard half and an outboard half.
What are the advantages of an inboard brake system?
Inboard brake. An inboard braking system is an automobile technology wherein the disc brakes are mounted on the chassis of the vehicle, rather than directly on the wheel hubs. The main advantages are twofold: a reduction in the unsprung weight of the wheel hubs, as this no longer includes the brake discs and calipers;
Why do you need inboard brakes on undriven wheels?
Undriven wheels require a brake shaft. Mounted inboard, it is more difficult to arrange for cooling air to flow over the rotor and air ducting can be required to prevent brake fade. Inboard brakes also affect anti-pitch suspension geometry.