🔩 Differential Coupling – TATA 4018 / L/L 2518 (Serrated)
📌 Applications
TATA Trucks: 4018 series
Leyland L/L Trucks: 2518 series
This coupling is used to connect the propeller shaft to the differential input flange, ensuring smooth torque transfer from the gearbox through the driveshaft to the rear differential.
⚙️ Key Features
Serrated / Splined Surface:
The contact face has serrations or teeth for positive mechanical engagement.
Prevents slip under high torque loads and reduces backlash in the driveline.
Material:
Made from hardened alloy steel for high durability and strength.
Bolt Pattern & Fitment:
Matches the OEM design of TATA 4018 and L/L 2518 trucks for easy installation on the differential flange.
Maintenance:
Works with differential oil and may include a matching oil seal (depending on application) to prevent lubricant leakage.
🛠️ Function
Torque Transfer: Moves engine power from gearbox → propeller shaft → differential.
Positive Engagement: Serrated teeth ensure the propeller shaft and differential remain firmly coupled under high load.
Durability: Designed to handle heavy-duty truck torque and prevent slippage or wear.
🔹 Drivetrain Placement
Gearbox Output → Propeller Shaft → Differential Coupling (Serrated) → Differential Input → Axles → Wheels
The differential coupling is a critical link that handles the torque transmitted to the rear axles, ensuring smooth and reliable driveline performance.