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Posi limited-slip differential

Limited slip differential
Race-bred, pyrolytic carbon clutches
Automatic operation
Smooth engagement in forward and reverse
Rebuildable design
Tunable via various spring packs (a.k.a. pre-loads)

Core features

  • Race-bred, pyrolytic carbon clutches
  • Tunable via various spring packs (a.k.a. pre-loads)
  • Rebuildable design
  • Works in forward and reverse
  • Net forged gears for added strength
  • Smooth, automatic engagement
  • Optimized torque bias ratios deliver maximum vehicle acceleration and handling

EV Applications

The Posi differential is easily integrated into EV vehicles and eAxles, as it does not require electronics or software integration. The initial torque bias is tunable to the vehicle requirements and it offers reliable performance over the life of the vehicle, offering improved handling and control, especially in rear wheel drive vehicles.

Prevent wheel slip before it starts

The Eaton Posi limited slip differential (also know as Positraction) prevents wheel slip before it can get started. To do that, carbon disc clutch packs, preloaded by a central spring assembly, are located behind each differential side gear. When torque input increases the clamping load on the clutch packs increases. That causes the chatter-free clutch packs to grab and transfer power to the other wheel.

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