Trimble. Intelligence in Rail.


Wheel profile measurement

Trimble® WheelView® is an automatic wheel profile measurement system that generates wheel profile and measurement data for each wheel of a moving train at mainline operational speeds.

Accurate inspection and measurement of wheel profile and diameter, at mainline speeds, even in tough environments, day or night

Choose the variant of automatic train inspection and measurement system to suit needs

WheelView-F is a rugged system that operates in harsh environments as well as workshops, depots, and yards. It has an exceptionally robust design capable of operating without human intervention for extended periods. WheelView-F provides wheel diameter measurements at high speeds of up to 85 mph (140 km/h).

The other WheelView variants allow for operation in specific conditions and provide a variety of different measurements. WheelView-I is offered for indoors and low speed operations.

Field-proven around the world

In production since 2000, different versions of WheelView including the standard version (WheelView-S) have been successfully deployed in many countries and is currently operational in some of the busiest freight and passenger corridors in the world, measuring over 50,000 wheels every day per system.

Return on investment with cost savings and efficiency improvements

WheelView is an effective system and quickly pays for itself by improving wheel maintenance practices and eliminating derailments due to worn wheels. It increases the efficiency of wheel maintenance by identifying proactive maintenance practices based on the application of wheel wear rates and early wheel defect detection.

Dramatic time and cost savings, versus manual inspections

Automate and complete wheel measurements and inspections quicker, minimizing time taken, costs, and issues that disrupt service.

Rolling stock stays in service for longer

With accurate measurements at mainline operational speeds there is minimal disruption to rolling stock schedules.

Limits risk to personnel, works 24/7, even in tough environments

WheelView works in even the toughest environments and at night so field workers are not in unpleasant or unsafe working conditions thereby reducing the risk to their safety.

Digital accurate records, with automated alerts of issues

Providing digital records that are usable across operations and maintenance WheelView reduces manual and paper-based workflows saving time and money. Critical issues are flagged and reported automatically so that corrective actions can be taken with less impact on service.


Trimble WheelView system measurements include:

  • Full wheel profile.
  • Flange height.
  • Flange width (thickness).
  • Flange slope.
  • Tread hollow.
  • Rim thickness.
  • Back-to-back (B2B).
  • Tracking position (wheel lateral position).
  • Wheel diameter.
  • Wheel width.
  • Tread rollover.
  • Flange rollover (arris).
  • Equivalent conicity (additional module).
  • Depth to witness groove position (if any).

Depending on the rolling stock types and requirements, the system’s measurement outputs may require optimization or customization.

System Features

  • Bi-directional system.
  • Measurement at mainline operational speeds.
  • Operates in extreme environments.
  • Installed in track using a steel sleeper (tie) or steel base with no track interference.
  • Easy maintenance.
  • Air purge unit for system cleaning.
  • Automatic defect reporting.

Software Features

  • Digital image acquisition/processing.
  • AEI (RFID) integration.
  • Automated reporting.
  • Web-based interface and database for data visualization and analysis (with Trimble CMMS™ (Condition Monitoring Management System) or TrainWatch™ software).
  • Remote monitoring/control.


  • Locomotive
  • Freight & heavy haul
  • High speed
  • Passenger
  • Metro
  • Tram

Installation Location

  • Mainline
  • Depot
  • Yard
  • Indoors

Power Requirements

  • 110V AC or 220V AC
  • Mainline/Yard/Depot: 10kW
  • Indoors: 5kW

Periodic Maintenance

  • Annual calibration.
  • Annual inspection & service.
  • Quarterly inspections.

Installation Position

  • F: In track/steel sleeper (tie).
  • I: In track/steel base.

Remote Diagnosis

  • Yes

Automated Health Reporting

  • Yes

AEI/RFID Integration

  • Yes

Air Purge Unit

  • Yes
Specifications subject to change without notice.


  • Datasheets


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