Which axle type has the bearings pressed onto the axle shafts?

Which axle type has the bearings pressed onto the axle shafts?

• A. Integral type
• B. Retainer Plate type
• C. Hub type
• D. Bearing-on-case type

Answer: (B)

The bearing arrangement in an axle is defined by where the bearing races are mounted and how they’re retained. When bearings are pressed onto the axle shafts, the inner races rotate with the shaft itself, and a retainer plate holds the outer races in the housing. This setup is the retainer plate type. The retainer plate provides the clamping and alignment needed to keep the pressed-on bearings correctly positioned on the shaft, separating this design from others where the bearings are mounted in the hub, inside the axle housing, or integrated in a single piece with the axle.

The bearing arrangement in an axle is defined by where the bearing races are mounted and how they’re retained. When bearings are pressed onto the axle shafts, the inner races rotate with the shaft itself, and a retainer plate holds the outer races in the housing. This setup is the retainer plate type. The retainer plate provides the clamping and alignment needed to keep the pressed-on bearings correctly positioned on the shaft, separating this design from others where the bearings are mounted in the hub, inside the axle housing, or integrated in a single piece with the axle.