Flange (C/FLANGE) – Tata LPK 2518 / LPK 2523 (Serrated), Height ~117 mm
📌 Part Overview
A coupling flange (C/Flange) used in the rear driveline / differential assembly of medium & heavy-duty Tata trucks — specifically LPK 2518 and LPK 2523 transmissions. This component provides a mechanical connection between the driveshaft and the differential or gearbox housing, ensuring torque transfer while accommodating dynamic load conditions.
Such serrated flanges are typical in axle and propeller shaft couplings where higher grip and positive engagement are required.
🔩 Key Features
Serrated Face / Serrations:
The flange surface has radial serrations (grooved or toothed pattern) that improve the tight mechanical fit with the mating component (such as a propeller shaft yoke). Serrations help reduce slippage, improve torque transmission, and provide better alignment under heavy load conditions.
Height / Thickness:
The overall height (thickness) of the flange is approximately 117 mm (or ~117.5 mm) — making it a robust coupling flange sized for high-load driveline use on commercial Tata truck axles.
Bolt Pattern & Fitment:
These flanges are typically mounted using multiple high-strength bolts that align with the driveshaft yoke and/or differential housing. The bolt pattern (number of holes, bolt size, and pitch) matches OEM Tata specifications so the flange mates correctly with transmission and axle components.
Material:
Made from forged steel or high-strength alloy to handle significant torsional forces and shock loads encountered in heavy-duty trucking applications.
⚙️ Function in the Vehicle
The flange acts as a coupling point:
It joins the driveshaft/propeller shaft to the differential input or gearbox output.
It transmits rotational power (torque) from the engine through the transmission to the rear axle.
Serrations ensure a positive mechanical engagement that resists loosening or slippage under load and vibration — vital for reliable drive performance in commercial haulage.
🚛 Typical Applications
Tata LPK 2518 commercial truck series.
Tata LPK 2523 heavy-duty truck model.
Likely also usable in other compatible Tata truck transmissions with similar coupling flange specifications.
📌 Why This Part Matters
A properly specified serrated coupling flange:
✔ Ensures efficient torque transfer
✔ Reduces risk of driveshaft misalignment
✔ Minimizes wear or backlash in the driveline
✔ Improves overall drivetrain reliability under heavy load