Glossary term
guide shoes
The sliding or rolling parts at the corners of a car frame that hold the car steady against the guide rails.
What it means
Guide shoes keep the car aligned. They sit at the four corners of the car frame and run against the steel guide rails fixed down the shaft. Some are simple sliding shoes with a plastic liner, others are rollers on sprung arms. Either way they take the sideways forces, so passengers feel a straight ride rather than a swaying one.
Where you see it
Top and bottom of the car frame and, on traction lifts, on the counterweight frame too. They are inside the shaft, so an owner only ever hears them.
How it works
Sliding shoes wear a little every journey and are usually lubricated from a small reservoir. Roller guides run dry and rely on their bearings. In both cases the wear is even until something changes — a rail joint that has moved, a shoe liner that has broken up, or a lubricator that has run empty.
As clearance grows, the car begins to move sideways slightly before the shoes catch it. That shows up as a knock at the same point on every journey, because rail joints are at fixed heights.
Why it matters
Ride quality is the most useful early-warning system a lift has. A ride that gets rougher over a few months, or a knock that appears between two particular floors, is worth reporting long before anything actually fails.
Commonly confused with
Guide shoes are often blamed for every rough ride, but rough ride can equally come from rail joints, building movement or worn roller tyres. Sliding shoes and roller guides are also different parts with different noises: sliding shoes hiss and squeal, rollers thump at joints.
Wear, service and lifespan
Sliding shoe liners are consumable and are replaced when the ride roughens; roller guides last longer but the tyres flat-spot if a lift stands unused for months. Service work checks the rail lubrication that the shoes depend on, and dry rails are one of the most common causes of a squeal on every trip.
Signs to watch for
- A regular knock or bump at the same points in the shaft.
- The car sways noticeably at speed.
- The ride is smooth in one direction and rough in the other.
- A squeal or rubbing sound that changes with speed.
- Ride quality has changed since the last service.
Troubleshooting guide shoes
A squeal or rubbing noise through the whole travel
What it usually means: Dry rails or worn shoe liners
Safe check: Ride once and note whether the noise is continuous or only at certain floors.
A regular bump every few seconds while travelling
What it usually means: Rail joints being felt through worn guides
Safe check: Count the bumps between two floors and report the number.
The car sways noticeably when people move inside it
What it usually means: Excess clearance at the guides
Safe check: Note whether it happens empty, loaded, or only when someone walks across the car.
How to report it
Describe the ride, not the part: continuous squeal, regular bump, or sway. Say whether it is worse near the top, the bottom or throughout. That lets the engineer decide between rail work, lubrication and shoe replacement before the visit.
Ask us about guide shoes on your lift
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Related terms
Definitions that usually come up alongside guide shoes when you are describing a fault.
- lift car
The enclosure passengers ride in, hung from the drive and running on guides, carrying the controls, lighting, alarm and load-weighing gear.
Structure
- lubrication
Planned oiling and greasing of rails, tracks, gears and bearings, carried out at service visits.
Service and compliance
- bearing
A supported pivot that lets a shaft, roller or wheel turn smoothly; worn bearings are a common noise source.
Drive and machine
- lift shaft
The enclosed vertical space the car travels in, including the pit below and the headroom above.
Structure
- safety gear
Mechanical jaws under the car that grip the guide rails and hold the car if it ever descends too fast.
Safety devices