Rear axle parts vary depending on the type of axle used, but most have an axle housing and transmission components like a rear differential. Bearings promote free movement of the axle, and some axle types have additional components for specific functions, such as portal axles used on ATVs.
Rear axle parts may vary depending on the type of axle being used. Sometimes the axle located at the rear of a vehicle is used as part of the drive system, while in other cases it is a dead axle or one that does not drive the vehicle forward but simply helps support the weight of the vehicle. car or truck. . However, some rear axle parts are quite universal, as almost all axles will feature an axle housing, as well as an axle within that housing to allow the wheels to spin freely.
Transmission components are rear axle parts that transfer power from the drive shaft to the wheels. This is usually done using a unit known as a rear differential. Several gears are mounted inside the differential case: one gear is attached to the drive shaft, which is located perpendicular to the shaft itself; The two axle shafts meet the driveshaft gear inside the differential housing, and are subsequently rotated by the drive gear. Each axle goes in a different direction: one reaches the left wheel and the other reaches the right wheel. Each axle and gear is contained within the axle housing to protect rear axle parts from dirt, grime and other potential sources of damage. Many other components may be contained within the differential case, depending on the make and model of the unit and the additional features of the vehicle.
Depending on the design, sometimes rear axle parts also include bearings. These bearings usually surround the axle shaft and promote free movement of the axle within the housing. This feature allows the wheels to spin freely and prevents drag in the drive system. Bearings are generally located at either end of the shaft, although the specific position can vary significantly depending on shaft design. If the unit is a dead axle, it can be attached to the vehicle’s chassis by using U-bolts, which are heavy-duty bolts that wrap around the axle housing.
Some axle types will have more rear axle parts for specific functions. A portal axle, for example, is a unique system that raises the axle above the centerline of the wheels. This means the axle is further off the ground than normal, giving the vehicle more clearance. They are typically used on ATVs, and while they are very useful, the design means that more components will be needed at each end of the axle in order for torque to be transmitted to the wheels. Bearings and drive systems are often part of these shafts.
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