1676mm Gauge Passenger Car Bogie With Dual-Stage Suspension And High-Speed Stability Potential

This is a dual-stage suspension passenger car bogie primarily designed for 1676 mm broad‑gauge lines, with a rated axle load of 16 t and a maximum service speed of 120 km/h.

The bogie features full‑contact side bearings for stable load distribution. Wheelset guidance employs a pull‑rod positioning mechanism with a compact and reliable structure.

Both primary and secondary suspensions utilize helical steel springs; the secondary suspension is additionally integrated with an anti‑yaw / rocking mechanism to enhance lateral dynamic performance.

Traction is transmitted via a central pivot, and vibration damping is provided by hydraulic dampers. These integrated design measures significantly enhance running stability and ride comfort.

The bogie is fitted with self‑sealing long‑life bearings to support extended maintenance intervals. The brake system adopts disc braking, which reduces wheel wear and operational noise while extending wheel service life. An external anti‑sway / stabilizer mechanism is equipped, enabling the bogie to support a speed‑up potential of 160 km/h.

The overall bogie layout eliminates internal friction pairs, and key connections adopt a modular design, effectively lowering lifecycle maintenance costs.

1. Q: What gauge and performance parameters is this bogie designed for?

   A: It is mainly applicable to 1676 mm broad‑gauge lines, with a maximum axle load of 16 t, a maximum operating speed of 120 km/h, and a speed‑up potential of 160 km/h.

2. Q: What structural and suspension features improve its dynamic performance?

   A: It adopts dual‑stage helical spring suspension, pull‑rod wheelset positioning, central pivot traction, hydraulic damping, full side bearings, and an additional stabilizer / anti‑rocking mechanism to enhance stability and ride quality.

3. Q: What maintenance and economic advantages does this bogie have?

   A: It uses self‑sealing maintenance‑free bearings, modular main connections, no internal friction pairs, and disc brakes to reduce wheel wear, noise, and daily maintenance costs.