Editorial Technical Reference

Travel Bogie

This page explains how Travel Bogie is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A wheeled undercarriage assembly that enables horizontal movement of a ship loader along rails.

Product Specifications

Technical details and manufacturing context for Travel Bogie

Definition
The Travel Bogie is a critical component of a ship loader's traveling mechanism, consisting of wheels, axles, bearings, and a frame. It supports the ship loader's superstructure and allows it to move longitudinally along the quay to position itself accurately for loading/unloading operations across different ship hatches. The bogie transfers the ship loader's weight to the rail track through its wheels. It is typically driven by electric motors via gear reducers, providing controlled movement along fixed rails. Steering mechanisms may be incorporated for curved tracks, and braking systems ensure safe positioning. The bogie is designed to handle rated load capacities from 50 to 200 tonnes per bogie, matching the ship loader's weight. Rail gauge can be standard or custom, ranging from 1435 to 2000 mm, per GB/T 146.1. Wheel diameters vary from 400 to 800 mm, with larger diameters reducing rail pressure. The number of wheels typically ranges from 4 to 8, depending on load and rail layout. Maximum travel speed is 20 to 40 m/min, with higher speeds requiring more power. Drive power is typically 2×7.5 to 2×22 kW total for all drive units. Wheel load ranges from 200 to 400 kN, and rail capacity must be checked. Operating temperature range is -20 to 50°C; below -20°C, low-temperature steel is required. Protection rating is IP54 to IP65 per IEC 60529 for outdoor dust and rain. Braking torque per brake is 200 to 800 N·m, ensuring safe stopping. Wheel material is cast steel ZG270-500 per GB/T 11352, with optional hardened rim. Bogie weight, including wheels and frame, ranges from 5 to 15 tonnes. These values are directory reference ranges and must be confirmed for the actual model and application with the legal manufacturer or supplier.
Working Principle
The bogie transfers the ship loader's weight to the rail track through its wheels. It is typically driven by electric motors via gear reducers, providing controlled movement along fixed rails. Steering mechanisms may be incorporated for curved tracks, and braking systems ensure safe positioning. The drive power and braking torque are selected based on the required travel speed and load. The wheel load and rail gauge must match the track design. The bogie's frame distributes the load to the wheels, and the bearings allow smooth rotation. The protection rating ensures operation in outdoor conditions. The operating temperature range defines the material selection, and the wheel material is specified for durability. The bogie's weight contributes to the overall load on the rail, so it must be considered in the structural design.
Common Materials
Structural steel, Alloy steel, Cast steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Load Capacity50–200 tPer bogie; match to ship loader weight
Rail Gauge1435–2000 mmStandard or custom gaugeGB/T 146.1
Wheel Diameter400–800 mmLarger diameter reduces rail pressure
Number of Wheels4–8Depends on load and rail layout
Max Travel Speed20–40 m/minHigher speed requires more power
Drive Power2×7.5–2×22 kWTotal for all drive units
Wheel Load200–400 kNCheck rail capacity
Operating Temperature-20–50 °CBelow -20°C use low-temp steel
Protection RatingIP54–IP65For outdoor dust and rainIEC 60529
Braking Torque200–800 N·mPer brake; ensures safe stopping
Wheel MaterialZG270-500Cast steel; hardened rim optionalGB/T 11352
Bogie Weight5–15 tIncludes wheels and frame

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Wheel Assembly
    Supports load and enables rolling movement along rails
    Material: Forged steel
  • Axle Part
    Connects wheels and transmits rotational force
    Material: Alloy steel
  • Bogie Frame
    Structural support connecting to ship loader and housing components
    Material: Structural steel
  • Bearing Housing
    Contains bearings for smooth wheel rotation
    Material: Cast steel
  • Drive Motors
    Turn the wheels through the reducers to move the loader along the rail.
  • Braking System
    Stops and holds the bogie at the working position.
  • Steering Mechanisms Optional
    Let the bogie follow curved track sections on builds that need it.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Travel Bogie.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (mechanical load bearing, not fluid pressure)
other spec: Max axle load: 25-40 tons per bogie, Rail gauge: 900-2000 mm, Travel speed: 0-30 m/min, Wheel diameter: 400-800 mm
temperature: -20°C to +50°C (operational), -30°C to +60°C (storage)
Media Compatibility
✓ Dry bulk materials (coal, grain, ore) ✓ General cargo handling ✓ Containerized cargo operations
Unsuitable: Submerged or saltwater spray environments without special corrosion protection
Sizing Data Required
  • Total ship loader weight (including max payload)
  • Rail gauge and rail head profile specifications
  • Required travel speed and acceleration/deceleration rates

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wheel bearing seizure
Cause: Lubrication failure due to contamination, improper grease selection, or extended service intervals leading to overheating and metal-to-metal contact
Bogie frame cracking
Cause: Fatigue from cyclic loading, stress concentrations at weld joints, or overloading beyond design capacity
Maintenance Indicators
  • Abnormal grinding or screeching noises during operation indicating bearing failure
  • Visible cracks or deformation in bogie frame structure during visual inspection
Engineering Tips
  • Implement condition-based lubrication using ultrasonic monitoring to detect bearing degradation before failure
  • Perform regular non-destructive testing (magnetic particle or dye penetrant) on high-stress weld areas to detect early-stage cracking

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
EN 15085-2:2007 - Railway applications - Welding of railway vehicles and components ASTM A370-22 - Standard Test Methods and Definitions for Mechanical Testing of Steel Products

Quoted from the published standard.

Manufacturing Precision
  • Axle journal diameter: +/-0.01mm
  • Wheel tread profile: 0.2mm flatness tolerance
Quality Inspection
  • Magnetic Particle Inspection for surface cracks
  • Dimensional verification with CMM (Coordinate Measuring Machine)

Manufacturers of Travel Bogie

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Frequently Asked Questions

What is the function of a travel bogie in a ship loader?

The travel bogie is a wheeled undercarriage that supports the ship loader's superstructure and enables it to move horizontally along rails. This allows the loader to position itself accurately for loading and unloading operations across different ship hatches.

What are the typical load capacities and rail gauges for travel bogies?

According to directory reference data, the rated load capacity per bogie is typically 50 to 200 tonnes, matching the ship loader's weight. The rail gauge can be standard or custom, ranging from 1435 to 2000 mm, per GB/T 146.1. These values must be confirmed for the specific model and application.

How is the travel bogie driven and controlled?

The bogie is typically driven by electric motors via gear reducers, providing controlled movement along fixed rails. Steering mechanisms may be incorporated for curved tracks, and braking systems ensure safe positioning. Drive power and braking torque are specified based on load and speed requirements.

What maintenance signals indicate potential issues with a travel bogie?

Maintenance signals may include unusual noises from wheels or bearings, increased vibration, uneven wheel wear, or reduced braking performance. Regular inspection of wheel flanges, bearings, and brake components is recommended. Any deviation from normal operation should be addressed promptly.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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