Covers bogie frame design, primary and secondary suspension systems, bolsters, and dampers — the components that absorb track irregularities and determine ride quality and stability at speed.
Key Points
- Primary suspension connects the wheelset to the bogie frame; secondary suspension connects the bogie frame to the coach body — two distinct stages.
Content Status
Draft note, grounded in real official syllabus text found via research but not yet cross-checked against the primary RBE PDF directly. Treat as study-aid only until verified.