4.28/4.61/5.00/5.67 Final Drive for PSA MA gearbox | Circlip + Thread

Final Drive for PSA MA Gearbox | Circlip + Thread

Available Ratios:

• 4.28 – 14/60

• 4.61 – 13/60

• 5.00 – 12/60

• 5.67 – 12/68

Material:

Manufactured from billet and forged Ni-Cr-Mo steel, providing exceptional mechanical strength, high impact resistance, and long-term durability under extreme torque loads.

Hardness:

HRC 56–60, ensuring excellent resistance to wear and surface fatigue, even under high torque and aggressive driving conditions.

Surface Treatments:

The final drive components undergo multiple advanced surface treatment processes to maximize performance and service life:

Sandblasting – Improves surface uniformity and preparation

Shot peening – Increases fatigue strength by inducing compressive surface stresses

WPC treatment – Enhances surface hardness, reduces friction, and improves micro-surface durability

Heat Treatments:

To ensure maximum strength, stability, and reliability, the following heat treatments are applied:

Carburizing – Increases surface hardness while maintaining a tough, impact-resistant core

Cryogenic treatment – Improves dimensional stability, wear resistance, and long-term gear mesh durability

Performance Benefits:

Increased torque multiplication and improved acceleration

Optimized for motorsport and high-performance street applications

High resistance to shock loads and sustained high-speed operation

Specifically designed for PSA MA gearboxes using circlip + threaded fixation systems