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YT4504 Axle
YT4504 Axle Suitable for agricultural machinery
The axle can be integral, resembling a giant barbell, supported at both ends by a suspension system that supports the vehicle body; thus, integral axles are usually paired with non-independent suspension. The axle can also be disconnected, resembling two umbrellas inserted on either side of the vehicle body, each supported by their own suspension system, so disconnected axles are used with independent suspension.
Depending on the drive system, axles are categorized into four types: steering axles, drive axles, steering drive axles, and support axles. Both steering axles and support axles are driven axles. Most vehicles use front-engine rear-drive (FR) configurations, with the front axle serving as the steering axle and the rear axle as the drive axle. In front-engine front-drive (FF) vehicles, the front axle serves as the steering drive axle, while the rear axle serves as the support axle. The structure of a steering axle is essentially the same, consisting of two steering knuckles and a crossbeam. If the crossbeam is likened to the body, the steering knuckle is the head that sways back and forth, and the neck is what we often call the kingpin. The wheels are mounted on the steering knuckles, like a straw hat on the head. However, while the hat rotates during driving, the head does not, separated by a bearing, so the head only sways back and forth. The neck—the kingpin—is the axis of the wheel's rotation. This axis is not perpendicular to the ground, and neither is the wheel itself. This will be discussed in detail in the wheel alignment section. The difference between a steering drive axle and a steering axle is that everything is hollow: the crossbeam becomes the axle housing, and the steering knuckle becomes the knuckle housing, because it houses the drive shaft. This drive shaft is bisected by the differential located in the middle of the axle housing, becoming two half-axles. The two straw hats aren't simply placed on the head; they are directly connected to the two half-axles inside. The half-axles also have an additional joint at the "neck"—a universal joint—so they become two parts: an inner half-axle and an outer half-axle.
Total speed ratio 21.235
Steering cylinder diameter 125/65 (mm)
Final drive ratio 4.75
Front wheel camber 18.5 (MPa)
Wheel reducer speed ratio 4.47
Steering cylinder stroke 160mmx2
Front wheel camber 1°
Oil cylinder oil pipe interface 2xM18x1.5
Front wheel positiKingpin camber 7°
Dynamic/Static Load 150/300(KN)
Kingpin caster angle 4°
Rated/Max.input torque 1800/2500Nm
Front wheel toe-in 0-2(mm)
Maximum inner corner of the front wheel 35°/29.8°
