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Bronze Wrapped Bushings for Heavy Machinery: Durable Solutions for Demanding Applications

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Bronze wrapped bushings are essential components in heavy machinery, offering superior durability and load-bearing capacity. Designed to withstand extreme conditions, these bushings are widely used in construction, mining, and industrial equipment.

FB094 Bronze Wrapped Bearing with Seals

What Are Bronze Wrapped Bushings?

Bronze wrapped bushings consist of a steel backing lined with a bronze alloy layer, providing:
High load capacity
Excellent wear resistance
Corrosion protection
Self-lubricating properties (when combined with graphite or PTFE)

They are commonly used in heavy-duty applications such as excavators, crushers, and hydraulic systems.

Key Advantages for Heavy Machinery
Exceptional Durability
Bronze alloys (e.g., SAE 660, C93200) resist wear better than plain steel bushings.
Example: In mining equipment, bronze bushings last 2x longer than standard sleeve bearings.

High Load Capacity
Supports both radial and axial loads in heavy machinery.
Test data: Some bronze wrapped bushings handle over 50 MPa dynamic load capacity.

Corrosion & Heat Resistance
Performs well in wet, abrasive, or high-temperature environments (up to 250°C).
Ideal for marine, oil & gas, and construction applications.

Low Maintenance
Requires less frequent replacement compared to polymer or composite bushings.

Comparison: Bronze Wrapped Bushings vs. Alternatives

Feature Bronze Wrapped Bushings Polymer Bushings Sintered Bronze Bushings
Load Capacity Very High Moderate High
Wear Resistance Excellent Good Good
Corrosion Resistance High Variable Moderate
Temperature Range -50°C to +250°C -40°C to +120°C -30°C to +200°C
Self-Lubricating Optional (graphite/PTFE) Yes Yes
Cost Medium-High Low-Medium Medium

Common Applications in Heavy Machinery

Excavators & Bulldozers: Pivot points, boom arms
Crushers & Conveyors: High-impact load zones
Hydraulic Cylinders: Rod and piston support
Marine Equipment: Saltwater-resistant bearings

Why Choose Bronze Wrapped Bushings?

Longer lifespan reduces downtime and replacement costs.
Handles extreme loads better than plastic or composite options.
Customizable with self-lubricating layers for maintenance-free operation.