---
title: "Continuous High-Speed Operation Under Load"
date: 2026-07-22
description: "High-Speed Railway Transport Modern high-speed trains (Sapsan, Allegro, Talgo) reach speeds up to 350 km/h. At this speed, bearings operate under extreme centri..."
source: https://en.mshjzc.com/railway-transport-bearings/56187.html
---

# Continuous High-Speed Operation Under Load

## High-Speed Railway Transport

Modern high-speed trains (Sapsan, Allegro, Talgo) reach speeds up to 350 km/h. At this speed, bearings operate under extreme centrifugal loads, high temperatures, and vibrations.

## Requirements for High-Speed Bearings

- Minimum runout (P4, P2 accuracy classes)
- Low vibration and noise level
- Stable performance at high temperatures
- Long service life under continuous operation

## Temperature Range

<table><tr><th>Mode</th><th>Bearing Temperature</th><th>Cooling</th></tr><tr><td>Idle operation</td><td>40-60°C</td><td>Natural</td></tr><tr><td>Nominal speed</td><td>80-120°C</td><td>Oil-based</td></tr><tr><td>Maximum speed</td><td>120-150°C</td><td>Forced</td></tr></table>

## MS Bearing Products for High-Speed Trains

- Cylindrical roller bearings (P4 class)
- Tapered roller bearings with controlled clearance
- Special high-temperature greases
- Ceramic insulated bearings

12-month warranty. ISO 9001 certified.