🔧 Centre Coupling / Centre Joint Flange – Eicher Trucks (Round Serrated Type)
A centre coupling (centre joint) is a drivetrain component used in truck propeller shaft assemblies to join two shaft sections or link the driveshaft to the intermediate support while allowing rotation and slight angular movement. These flanges are often serrated (positive engagement) to improve torque transmission and reduce slip under load.
📌 Common specifications from generic truck parts catalogs (KKI Autos, parts listings):
Centre Coupling Flange – Eicher (Round serrated)
• Approx. Size: 6″ / 150 mm plate diameter
• Bolt Holes: 4 holes serrated
• Oil Seal Size: 55 mm – 62 mm depending on exact flange design
⚙ Typical applications for intermediate shaft/driveshaft couplings in Eicher trucks and similar vehicles.
Related centre coupling variants also exist for Leyland and other commercial vehicles, indicating a similar design principle (serrated plate, bolt pattern, oil seal provision), which is also the case for Eicher centre couplings listed in parts catalogs.
These centre couplings are mechanical joints in the driveline that:
Connect driveshaft segments or link the driveshaft to gearbox/differential flanges.
Provide positive serrated engagement and torque transfer.
May include provision for oil sealing (via separate seals) depending on whether they are inside a sealed housing or in an exposed shaft area.
🛠️ Product Examples You Can Use Around This Application
While exact centre coupling flanges for heavy truck drivelines aren’t typically sold as generic off‑the‑shelf retail parts online, here are some related driveline components you might consider if you’re maintaining shafts or centres on Eicher trucks: