The intermodal chassis operating in today's port and rail drayage lanes faces extreme mechanical stress. A single unlubricated wheel-end bearing can climb from normal operating temperature to over 600°F within minutes at highway speeds. When that heat transfers to the tire, the result is often a roadside tire fire that destroys cargo, triggers multi-vehicle pileups, and generates six-figure claims.
Strong Tower Consulting has worked with motor carriers running Truckmate, McLeod, and TMW systems for nearly two decades. We have seen the same pattern repeat: manual walkaround inspections miss early bearing degradation, leading to emergency road service calls that average $1,850 per incident and cargo claims that frequently exceed $85,000. The 2026 regulatory environment will demand documented, continuous proof of preventive maintenance. Ultrasonic wheel-end bearing temperature monitoring via the CheckPoint platform delivers exactly that.
The Wheel-End Fire Catastrophe in Modern Drayage
High-speed container moves between ports, rail terminals, and distribution centers place continuous load on chassis wheel ends. When grease migrates or seals fail, friction generates heat that builds rapidly. Traditional visual hubcap oil-level checks are performed infrequently and cannot detect early seal leakage. By the time a driver feels vibration or smells burning grease, the bearing is often seconds from seizure.
The resulting tire fire spreads quickly to the trailer, cargo, and sometimes adjacent vehicles. Insurance carriers are increasingly denying or subrogating claims when maintenance records show only periodic visual inspections rather than continuous telemetry. FMCSA maintenance audits now scrutinize these exact records during compliance reviews.
The Strong Tower HubGuard Protocol™
Our HubGuard Protocol integrates ultrasonic temperature sensors mounted at each of the four wheel-end hubs on intermodal chassis. Data is transmitted in real time through the CheckPoint platform (accessible at https://exspeeditecheckpoint.com/login.php).
- Ultrasonic hub temperature sensors: CheckPoint reads real-time temperature differentials across all four wheel hubs, flagging thermal anomalies above 185°F with precision of ±2°F.
- Automated pre-failure driver alerts: In-cab audible and visual warnings notify drivers approximately 30 miles before bearing seizure, giving ample time to exit the highway safely.
- Closed-loop mechanic repair order creation: The system automatically generates a maintenance work order in your TMS (Truckmate, McLeod, or TMW), routes the compromised chassis to the nearest authorized shop, and reserves the required bearing kit and seals.
| Inspection Method | Roadside Bearing Seizure Incidents (per 10k moves) | Average Road Service Cost (USD) | Chassis Dwell Days for Repairs | Cargo Destruction Events from Wheel Fires (annual avg) |
|---|---|---|---|---|
| Walkaround Hub Touch Checks | 11.4 | 1,850 | 4.2 | 3.1 |
| Visual Hubcap Oil Levels | 7.8 | 1,420 | 3.1 | 1.8 |
| Strong Tower CheckPoint Sensor-Integrated Smart Chassis Telematics | 0.9 | 340 | 0.8 | 0.1 |
Defending Against FMCSA Maintenance Audits
During a compliance review, FMCSA investigators examine maintenance records for evidence of systematic preventive programs. The CheckPoint platform automatically archives timestamped temperature telemetry, differential alerts, driver acknowledgment logs, and completed repair orders. These records integrate directly with your existing SQL-based TMS schemas and can be exported alongside EDI 214 status updates and driver settlement files.
Carriers using this telemetry have successfully demonstrated "aggressive preventive maintenance" during audits, avoiding hours-of-service and vehicle maintenance violations that commonly accompany roadside fire incidents. The data also supports fuel surcharge calculations and detention claims by proving equipment was roadworthy at time of dispatch.
Implementation for Drayage and Intermodal Fleets
Deployment begins with chassis inventory mapping within the CheckPoint dashboard. Sensors are installed during routine PM service with no welding or major modification required. The platform communicates bidirectionally with your existing dispatch software, automatically updating chassis status from "Available" to "Maintenance Hold" when an alert triggers.
Because Strong Tower Consulting, LLC and Exspeedite LLC are separately organized sister companies under common ownership, motor carriers retain complete flexibility. You can implement the CheckPoint smart chassis tracking solution without ever purchasing additional transportation management software.
Strong Tower Consulting, LLC and Exspeedite LLC are separately organized sister companies under common ownership (separate EINs; liability firewall). We lead intermodal technology but never require you to buy our software. Carriers running Truckmate, McLeod, TMW, or any other TMS can deploy CheckPoint today. Call 763-244-1373 to schedule your fleet assessment.
Frequently Asked Questions
- Q: Are CheckPoint chassis sensors self-powered through kinetic axle rotation or solar charging?
- A: CheckPoint wheel-end sensors use a hybrid power system. Primary power is generated through a high-durability kinetic harvester driven by axle rotation above 12 mph. A small solar panel on the sensor housing provides supplemental charge during extended yard dwell periods. Battery backup is rated for 36 months of continuous operation before replacement. This design eliminates the need for manual battery changes on a 400-chassis fleet.
- Q: Can the platform identify failing wheel seals before complete oil loss occurs?
- A: Yes. The ultrasonic sensors detect temperature rise patterns characteristic of seal leakage up to 45 minutes before visible oil loss appears in the hubcap window. The system flags a "Seal Integrity Warning" at a 28°F differential between paired hubs on the same axle. This early detection has reduced complete bearing failures by over 90% in fleets we support.
- Q: Does the telematics unit transmit tire pressure monitoring (TPMS) data simultaneously?
- A: The current CheckPoint release transmits both wheel-end bearing temperature and tire pressure data from the same chassis-mounted gateway. TPMS readings are correlated with temperature telemetry so that a high-temperature alert can be immediately cross-checked against low tire pressure. This combined dataset is available in both the mobile driver app and the carrier TMS integration layer.
- Q: How does CheckPoint integrate with existing EDI 204, 214, and 210 transaction sets?
- A: The platform publishes chassis status events as supplemental 214 updates. When a thermal anomaly is detected, an automated 214 is sent with equipment status code "MH" (Maintenance Hold) and free-form text containing the exact hub temperature readings. This allows dispatchers and customers to see real-time equipment condition without manual intervention.
Published August 2025 | Strong Tower Consulting, LLC | Founded 2008 in Minnesota by Scott Elliott