Flywheel for a driveline of a vehicle
By employing a two-part retaining plate structure in the flywheel, the problem of aligning the hub with the crankshaft bolt holes is solved, simplifying the flywheel disassembly process and improving maintenance and repair efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SCHAEFFLER TECHNOLOGIES AG & CO KG
- Filing Date
- 2025-11-24
- Publication Date
- 2026-07-17
AI Technical Summary
When disassembling the existing flywheel, the hub and crankshaft bolt holes are not aligned, making it impossible to disassemble using ordinary tools, which affects maintenance and repair efficiency.
Design a flywheel structure in which a torsional vibration damper and a hub are fixed to the main flywheel mass body by a two-part retaining plate. The axial fixed connection can be released by removing the retaining element. The inner retaining plate, together with the torsional vibration damper and the hub, can be removed from the main flywheel mass body and the outer retaining plate to achieve alignment of the hub with the bolt holes.
This design enables automatic alignment of the hub and bolt holes after the torque limiting device is triggered, simplifying the flywheel disassembly process and improving the convenience of maintenance and repair.
Smart Images

Figure CN122407741A_ABST