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Retainers are the core component of the bearings necessary for machines and transportation vehicles. Bearings made with special copper alloy are more compatible with steel bearings than bearings made with iron plate, the material most other bearings are made from. In addition, copper alloy exhibits outstanding durability under severe conditions. For this reason, copper alloy retainers are imperative for transportation vehicles, such as aircraft, shinkansen and other railway vehicles requiring safety, comfort and durability as they carry precious lives, as well as for precision instruments and machine tools.

Feature of copper alloy casting

1. Fundamental properties

 

Good heat and electricity conduction

Outstanding corrosion resistance

Possess appropriate strength

Outstanding abrasion resistance

Outstanding bearing properties

Beautiful appearance

 

2. Examples of use (Standard number JIS H 5120j

 

Propeller for vessels

Bearing

Bearing retainer

Slipper

Bush

Worm gear

Bearing board for bridge

Nuts

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