Quando você pensa em pontes, os rolamentos podem não ser a primeira coisa que vem à mente. Mas esses componentes pequenos (às vezes ocultos) desempenham um papel importante em manter as pontes seguras. Seja uma enorme ponte suspensa atravessando um rio ou um simples viaduto, os rolamentos são cruciais para lidar com as forças que as pontes enfrentam todos os dias.

O que os rolamentos fazem

Bridges move. They expand when it’s hot and contract when it’s cold. They flex under the weight of cars and trucks. They shift when the wind blows or when the ground shakes. Bearings are what make all of that movement possible without the bridge cracking or collapsing.
Think of them as the joints of the bridge, allowing smooth movement while supporting massive amounts of pressure.

Why Bearings Matter

Here’s how bearings keep bridges working as they should:
Absorb Movement:
Bridges need to move with temperature changes, traffic loads, and even seismic activity. Bearings let the structure flex and shift without breaking.
Spread the Load:
Bearings distribute the weight of the bridge and its traffic evenly across its supports. Without them, certain points would carry too much stress, leading to wear and tear—or worse, structural failure.

Reduce Stress:
Bearings take the strain off the bridge’s main components, like girders and supports. Less stress means fewer cracks, less maintenance, and a longer lifespan.
Add Durability:
Bearings act as a buffer. They handle the repetitive forces that come from daily traffic and environmental changes, preventing damage to critical parts of the bridge.

Types of Bearings Used in Bridges

Different bridges call fordiferentes tipos de rolamentos. Each one is designed for specific conditions:
Elastomeric Bearings:Flexible and durable, these rubber-and-steel bearings allow for movement in multiple directions. Commonly used in medium-sized bridges.
Pot Bearings:Ideal for heavy loads, these use a confined elastomer to absorb forces while allowing rotation and movement.
Rolamentos esféricos:Perfect for bridges with complex movements. Spherical bearings handle tilting, twisting, and heavy loads with ease.
Sliding Bearings:Great for long-span bridges and allow for large horizontal shifts.
Rolamentos de rolos:Found in older bridge designs. They allow horizontal movement while supporting vertical loads.

What Happens Without Bearings?

A bridge without bearings is like a human body without joints—rigid and prone to breaking under pressure. Without bearings, here’s what could happen:
Cracks & Damage:
The constant expansion and contraction of materials would lead to cracks and fractures, weakening the structure.
Shorter Lifespan:
Bearings reduce wear and tear on critical components. Without them, bridges would deteriorate much faster.
Risk of Collapse:
In extreme cases, the inability to handle movement and load shifts could lead to catastrophic failure.
Expensive Repairs:
Fixing or replacing a bridge that lacks proper bearings is far more costly than maintaining one with them.

Why Choose NSAR Bearings for Bridge Projects?

NoNSARBearings, we understand the critical role bearings play in infrastructure. That’s why we offer high-quality, durable bearings designed to perform under extreme conditions.
Wide Selection:From spherical bearings to pot bearings, we have the right solution for every type of bridge.
Built to Last:Our bearings are designed to handle heavy loads, harsh weather, and long-term use.
Soluções personalizadas:Need something specific for your project? We offerOEM customization to meet your exact requirements.
Fast Shipping:With offices domestically and overseas warehouses we can deliver in a snap wherever you are.
Bearings might be out of sight, but they’re never out of mind when it comes to bridge design. They allow bridges to move and withstand the elements—all while protecting the structure from damage.

Whether you’re maintaining an existing bridge or working on a new project, choosing the right bearings is essential. We always here to help you find the perfect fit for your needs. Contact us today and let’s keep your bridges—and your business—on track.