🔩 Coupling Flange – TATA GB50 (Serrated, Height 60 mm, 70 mm Oil Seal)
📌 Application
This part is a gearbox output coupling flange used on TATA vehicles equipped with the GB50 gearbox — a common commercial truck transmission used in models like TATA 2515/2518 and similar heavy‑duty TATA trucks. The coupling flange connects the gearbox output shaft to the propeller/driveshaft companion flange to transmit torque smoothly into the rear driveline.
⚙️ Key Features
🔹 Type: Serrated Coupling Flange — positive engagement via serrations/splines
🔹 Application: TATA GB50 gearbox output
🔹 Height / Thickness: ~60 mm (axial dimension of the flange body)
🔹 Oil Seal Size: Designed to use a 70 mm oil seal at the gearbox rear to prevent lubricant leakage
🔹 Function: Joins gearbox output to the propeller shaft companion flange
🔹 Material: High‑strength machined steel, suitable for heavy‑duty torque loads
🔹 Engagement Face: Serrated/splined surface ensures firm torque transmission and reduces slip under load