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NEW BUSHINGS: CDA954 Aluminum Bronze

Generally used for bushings due to it's resistance to wetness & non-sparking quality. The marine industry, explosives, petroleum as well as the mining industry all utilize this alloy. It has a heavy-load carrying capability, resistance to corrosion & retains it's physical/mechanical strength at higher temperatures.

Tensile Strength: Minimum 85,000 psi
Yield Strength: Minimum 32,000 psi

EXISTING BUSHINGS: CDA932 / SAE 660 Bearing Bronze

Bearing Bronze is a leaded tin generally used for general utility bearings & wearplates for medium speeds & pressures. Bearing offers good wear resistance due to an excellent lubricating property & can be used for impact/shock loading.

Tensile Strength: Minimum 35,000 psi
Yield Strength: Minimum 20,000 psi
Tensile Strength & Yield Strength don't mean anything, in the application at hand. If that were the case, then the yield strength of the bushing Calmini supplies would be more than adequate.

Tensile strength is the strength at which the material first starts to give (aka, stretch). Yield Strength is the max. strength it has when it breaks. What you need is to find out the compressive strengths (resistance to crushing), and it's hardness rating (resistance to rubbing off the material).

Those are the strengths that matter in comparing the materials. And no, having a higher tensile/yield strength doesn't mean it will have a higher compressive strenght, anywhatsoever. Look at Concrete. It has an extremely high compressive strength (upwards of 50,000 psi and sometimes even higher), but yet has an approximated tensile strength of 0 psi (Hence the reason for steel reinforcement).