AXLE TYPES

 

BANJO OR SEPARATE CARRIER TYPE AXLE CONFIGURATION

The Banjo or Separate Carrier Type axle configuration is a single-piece design resembling a banjo. The complete differential unit is supported by a distinct carrier, securely bolted to the axle casing. This configuration facilitates maintenance and repairs as the two half shafts can be directly accessed from the sides. In the event of repairs, the half shafts can be easily removed, and the differential assembly can be extracted by simply opening the bolts.

                    

SALISBURY OR INTEGRAL CARRIER TYPE AXLE CONFIGURATION

           In the Salisbury or Integral Carrier Type configuration, the differential housing features permanent housing tubes pressed and welded into its sides. Often referred to as unitized carrier housing, this design is widely utilized for its structural integration.                  

SPLIT TYPE AXLE CONFIGURATION

The Split Type axle casing is manufactured in two halves, subsequently bolted together. However, it is important to note that this configuration is now considered obsolete. In case of any faults requiring reassembly, the entire rear axle must be removed as a unit before disassembly can take place.

SIGNIFICANCE OF PRELOAD IN AXLE SYSTEMS

• Maintaining proper preload in axle systems holds significant importance for various reasons:

  1. Minimizing Gear Wear:

     • Proper preload helps ensure a precise gear mesh, minimizing wear on gears and extending the tooth life of both the pinion and ring gear.
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  2. Maximizing Bearing Life:

     • Achieved at a slight preload setting, proper preload maximizes bearing life by reducing unnecessary friction.
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  3. Providing Correct Rigidity and Stiffness:

     • Correct preload minimizes shaft bending, lowering bearing misalignment, and decreasing seal wear. This contributes to the overall rigidity and stiffness of the axle system.

PRELOAD ADJUSTMENT PROCESS:

         Preload is achieved by adjusting the bearing to a specific amount of Bearing Rolling Torque. The Rolling Torque is a measure of the bearing's resistance to rotate, indicating the tightness in the bearing setting. During assembly, different thicknesses of shims are utilized for perfect preload adjustment, ensuring the proper meshing of the pinion and ring gear. This meticulous adjustment avoids unnecessary frictional losses during the transmission of torque from the driveshaft to the wheel end.

Proper preload adjustment not only enhances reliability but also extends the life of the pinion and ring gears, contributing to the overall durability of the axle system.