Question

What are the four mechanical types of limited slip units used in drive axles?

Answer 1

The four mechanical types of limited slip units used in drive axles are the Cone Type, Clutch Type, Helical Gear Type (Torsen), and Viscous Coupling Type, each employing a different mechanism to improve traction by distributing power effectively.

Step-by-step explanation:

There are four mechanical types of limited slip units used in drive axles. These are:

1. Cone Type: Utilizes cone-shaped friction surfaces interfaced with the differential casing. When torque is applied, the cones press against the casing, creating friction that limits differential action.
2. Clutch Type: Makes use of clutch packs positioned between the differential carrier and the side gears. Under torque, these clutches lock up to provide traction to both wheels.
3. Helical Gear Type (Torsen): Employs helical gears and worm gears, which bind under differential speeds, thereby limiting the amount of slip between wheels.
4. Viscous Coupling Type: Uses a viscous fluid and multiple plates within a sealed housing. Differential wheel speeds cause the fluid to heat and thicken, which in turn applies a shearing force to slow the faster-spinning wheel.

All these types of limited slip units are designed to improve traction by distributing power to the wheel with the most grip while still allowing for a necessary degree of wheel speed differentiation.