Your elevator has been running smoothly for twenty years. Maintenance calls have been routine. Then one morning, the cab makes a grinding noise between floors and stops.
The diagnosis: traction machine failure. The sheave bearings seized. The machine is destroyed.
The replacement cost? Sixty-five thousand dollars.
You call your elevator contractor expecting your full maintenance contract to cover this. They pull up your agreement and deliver the news: machines are excluded from your coverage. You are responsible for the full $65,000.
This scenario is happening more frequently as buildings with Machine Room Less (MRL) elevators approach their design lifespan. If you manage a property with traction elevators, especially MRL units installed between 2000 and 2010, you need to understand what traction machines are, why they fail, what replacement actually costs, and whether your contract leaves you exposed.
What Is a Traction Machine?
The traction machine is the heart of your elevator. It is the motor and sheave assembly that moves the cab up and down the hoistway. Hoist ropes wrap around the sheave (a grooved wheel), and friction between the ropes and grooves provides the "traction" that gives these elevators their name.
There are three main types:
Geared traction machines use a worm gear to reduce motor speed to the sheave rotation needed for elevator travel. Standard for mid-rise buildings for decades. Typical lifespan: 25 to 35 years.
Gearless traction machines connect the motor directly to the sheave. Smoother, quieter, more energy-efficient. Common in high-rise buildings, lasting 30 to 40 years.
Machine Room Less (MRL) machines are compact gearless units installed in the hoistway rather than a separate machine room. Popular since the late 1990s, they save valuable building space. But MRL machines have a design lifespan of approximately 20 years, shorter than traditional equipment. For broader context on elevator lifespans, see our guide on how long elevators last.
The traction machine determines everything about your elevator's performance: speed, ride quality, energy consumption, and reliability. When a traction machine fails, there is no partial failure mode, no limping along until you can schedule repairs. Machine failure means immediate, total shutdown.
Why Traction Machines Fail
The four primary failure modes are:
Bearing Seizure
Bearing seizure is the most common cause of complete machine failure, particularly in MRL elevators. The motor shaft runs on internal bearings requiring periodic lubrication. When lubrication is inadequate, whether from missed maintenance visits, difficult access points, or age-related degradation, the bearings overheat and seize. Once seized, the damage is immediate and total. There is no repairing a seized bearing inside a traction machine. The entire machine must be replaced.
MRL machines are especially vulnerable to this failure mode. Their compact design makes lubrication access difficult. The bearings are located in tight spaces that require specific procedures to reach. Maintenance technicians working quickly may miss lubrication points that would be obvious in a traditional machine room. For more on this specific vulnerability, see our analysis of the MRL bearing seizure crisis affecting buildings across the country.
Sheave Wear
Traction sheave grooves wear down gradually as ropes slide against them thousands of times daily. As grooves wear, the sheave loses its grip on the ropes. You may notice the cab "creeping" at floor stops, speed variations during travel, or increased slippage during heavy loads.
Sheave replacement alone costs less than full machine replacement. However, severe sheave wear often damages bearings and other components by the time it is diagnosed, escalating to full machine replacement.
Motor Burnout
Electric motors fail from heat accumulation, insulation breakdown, or overload conditions. Warning signs include unusual motor noise, excessive heat radiating from the machine room or hoistway, and intermittent performance issues.
Motor burnout can be caused by electrical problems upstream of the motor itself. Voltage irregularities, power surges, and controller malfunctions can all stress motor windings. When diagnosing motor problems, experienced technicians evaluate the entire electrical system rather than focusing solely on the motor.
Brake Component Failure
The machine brake holds the cab at floor stops. While brake components are typically serviceable without replacing the entire machine, severe brake failure can damage other components.
Warning Signs to Watch
Before complete failure, most traction machines show warning signs:
- Unusual grinding, humming, or clicking noises
- Vibration in the cab or machine room
- Speed variations during travel
- Cab creep after floor stops
- Excessive heat from the motor
- Increased energy consumption
- More frequent shutdowns or fault codes
If your maintenance technician reports any of these symptoms, ask specifically about machine condition and remaining useful life. The cost of proactive investigation is minimal compared to emergency replacement.
The Cost Reality
Traction machine replacement is the most expensive single repair on any elevator:
Machine cost: $60,000 to $80,000. MRL and gearless machines tend toward the higher end.
Labor cost: $10,000 to $20,000 additional. Installation requires rigging, precise alignment, and extensive testing.
Total project cost: $70,000 to $100,000 including permits and incidentals.
Lead time: Expect 6 to 12 weeks from order to delivery. Traction machines are not shelf items. They are manufactured to order or pulled from limited inventory. During that lead time, your elevator sits out of service.
For context, compare machine replacement to other major elevator components:
| Component | Typical Cost Range |
|---|---|
| Traction machine | $60,000 - $80,000 |
| Controller | $50,000 - $70,000 |
| Hydraulic power unit | $30,000 - $50,000 |
| Door operator | $20,000 - $23,000 |
| Safety | $8,000 - $15,000 |
| Governor | $6,000 - $12,000 |
The traction machine sits at the top of this list. A single bearing seizure can trigger an expense exceeding many buildings' entire annual elevator budget.
The Contract Exclusion Problem
Here is the trap: most maintenance contracts exclude traction machines from coverage, even contracts labeled "full maintenance."
Elevator contractors know machine replacement is expensive and unpredictable. To manage risk, they carve out major components. The term "full maintenance" sounds comprehensive, but it typically covers routine service, adjustments, and normal wear items. Major component replacement is almost always excluded.
What to Look for in Your Contract
Search your maintenance agreement for these terms:
- "Machines" or "traction machines"
- "Motors" and "sheaves"
- "Major components" or "capital repairs"
- The entire "exclusions" section
Typical exclusion language: "The following items are specifically excluded: traction machines, motors, sheaves, controllers, power units, safety devices..."
Some contracts bury exclusions in attached schedules. The hidden fees in elevator maintenance contracts extend beyond fees to coverage limitations that only surface when you need expensive repairs.
Options If Machines Are Excluded
Negotiate coverage. Some contractors add machine coverage for an increased monthly rate. See how to negotiate elevator contracts.
Self-insure. Set aside reserves specifically for major component replacement.
Use the Contract Scanner. Our Contract Scanner tool identifies coverage gaps, including machine exclusions.
The MRL Time Bomb
Thousands of buildings installed MRL elevators between 2000 and 2010. Those machines are now 16 to 26 years old. Their design lifespan was approximately 20 years.
We are watching the first wave of MRL machine failures. Industry practitioners are seeing increased replacements as these installations age out of their design life.
Why MRL Buildings Are At Higher Risk
Compact design limits maintenance access. The tight packaging that makes MRL machines space-efficient also makes them harder to service. Lubrication points that would be easily accessible in a machine room are awkward or hidden in an MRL installation.
Hoistway environment. Traditional machine rooms are climate-controlled spaces. MRL machines operate in the hoistway, exposed to temperature variations, dust, and humidity that accelerate wear.
No redundancy. When an MRL machine fails, the elevator stops. There is no secondary system, no workaround, no temporary fix. The cab stays where it stopped until the machine is repaired or replaced.
Bearing vulnerability. MRL machines are particularly susceptible to the bearing seizure failure mode. The compact internal bearings are difficult to lubricate and easy to miss during routine maintenance visits.
If You Have an MRL Building
If your property has MRL elevators installed before 2010:
- Check your contract for machine coverage
- Request a written machine condition assessment
- Review maintenance records for consistent lubrication
- Budget $70,000 to $100,000 per elevator for capital planning
- Consider whether full elevator modernization makes more sense
Prevention and Monitoring
Proactive monitoring extends useful life and provides warning before catastrophic breakdown.
Lubrication is the most important maintenance activity for machine longevity. For MRL machines, confirm technicians are actually accessing and lubricating bearings, not just noting "lubrication performed."
Vibration monitoring detects bearing wear and misalignment before they become critical.
Temperature monitoring identifies overheating that precedes motor and bearing failure.
Use our elevator maintenance checklist to track ongoing maintenance and compare elevator service bids when evaluating contractors.
What to Do If Your Machine Fails
Get Multiple Quotes
Do not assume you must use your current contractor. Get quotes from your maintenance provider plus at least one competitor. Prices vary 20% or more for the same work.
Evaluate Modernization
If facing $70,000 to $100,000 for machine replacement, ask whether full modernization makes more sense. Modernization costs $150,000 to $300,000 but provides a completely refreshed elevator. See our elevator modernization cost guide.
Understand Lead Times
Expect 6 to 12 weeks from order to delivery plus installation. For a building with a single elevator, plan for tenant communication and ADA compliance for mobility-impaired residents.
Check Insurance and Document
Some commercial property policies cover equipment breakdown. Take photos, request written reports, and document all communications. For more guidance, see our elevator repair cost guide.
Conclusion
Traction machine replacement is the most expensive single repair on any elevator. At $60,000 to $80,000 for the machine alone, plus labor and downtime, machine failure catches many property managers unprepared.
Most maintenance contracts exclude traction machines. For MRL buildings installed between 2000 and 2010, the risk is elevated as machines approach or pass their design lifespan.
Check your coverage now, not after failure. Use the Contract Scanner to identify coverage gaps. Ask your maintenance provider about machine condition.
A $70,000 surprise is preventable. But only if you know your exposure before the grinding noise starts.
Copyright 2026 ElevatorBlueprint. All rights reserved.