This frame bushing is widely applied to Symons Cone Crushers, with its material selected from C93800 bronze or ZCuPb15Sn8 lead-tin bronze. Due to the high density of lead (Pb) in these two materials, using the normal casting method will most likely result in material segregation after casting. This segregation directly reduces the bushing’s mechanical properties, shortens its service life, and eventually leads to the failure of the part. Additionally, the chemical composition of the material can be adjusted according to specific customer requirements. For detailed information on the materials used for the frame bushing and their mechanical properties, please refer to the table below.
Mechanical Properties (min) | ||||
Yield strength | Tensile strength | Elongation | Hardness | |
97 MPa | 179 MPa | 12% | 55 HB |
Chemical Composition wt.%
|
|||||||||
Cu |
Sn |
Al |
Fe |
S |
Ni |
Pb |
Si |
P |
Zn |
75.0-79.0 |
6.3-7.5 |
≤0.005 |
≤0.15 |
≤0.08 |
≤1.0 |
13.0-16.0 |
≤0.005 |
≤0.05 |
≤0.8 |
Product Details
What Sets Our Centrifugal Casting Bronze Bushings Apart?
The Centrifugal Casting Process Behind These Bushings
Molten bronze (chosen for its natural friction resistance and strength) is poured into a high-speed rotating mold (300–3,000 RPM). Centrifugal force pushes the metal outward, eliminating air bubbles and ensuring uniform distribution. The result? Bushings with zero porosity, consistent wall thickness, and a dense grain structure that boosts long-term reliability.

Key Features of Our Centrifugal Casting Bronze Bushings
Unmatched Wear Resistance for Industrial Use
- Static loads up to 5,000 psi (critical for construction equipment like excavators).
- Continuous rotational speeds (perfect for conveyor shafts and pump components).
- Exposure to oils, coolants, and mild chemicals (common in manufacturing settings).
Tight Tolerances for a Perfect Fit
- Seamless integration with existing machinery (no costly modifications needed).
- Reduced vibration (protects connected parts like bearings and gears from premature wear).
- Consistent performance across every batch, a must for mass-produced or critical equipment.
Applications Where Centrifugal Casting Bronze Bushings Excel
Heavy Machinery Applications
- Excavator arm pivots (withstanding repeated heavy lifting without cracking).
- Crane hoist shafts (resisting wear from constant rotation and load stress).
- Bulldozer track rollers (handling rough terrain while maintaining structural integrity).
Manufacturing & Industrial Uses
- Hydraulic cylinder rods (maintaining smooth movement under pressure).
- Textile machine spindles (preventing thread snags with a uniform surface finish).
- Printing press rollers (resisting ink buildup and mechanical stress during long production runs).
Custom Solutions for Unique Centrifugal Casting Bronze Bushing Needs
How We Create Custom Bushings
- Share your machinery’s load, speed, and environmental requirements (e.g., exposure to chemicals or extreme temperatures).
- We select the optimal bronze alloy (e.g., C93200 for high wear, C95400 for corrosion resistance).
- We cast and machine the bushing to your dimensions (ranging from 0.5” to 24” in outer diameter).
- Every custom unit undergoes the same testing as our standard products (pressure checks, dimensional audits, and wear simulations).
Why Choose Our Centrifugal Casting Bronze Bushings?
- 100% quality inspection (every unit is tested before shipment to ensure it meets our standards).
- Fast lead times (standard sizes ship in 3–5 days; custom orders in 2–3 weeks).
- Expert support (our team helps you select the right bushing for your application, whether standard or custom).