Bronze

SAE 660 Bronze
General-purpose bearing bronze
Lead-tin bronze (C93200) for general-purpose bearings and bushings; good machinability and anti-friction performance at moderate loads and speeds.
Main features
Ideal for bushings and bearings
Easy to machine
Good performance under moderate loads
Standards and equivalents
| SAE | UNS | ASTM | EN | DIN | JIS |
|---|---|---|---|---|---|
| 660 | C93200 | B584 / B505 / B271 | CC493K | 2.1090 | — |
Chemical composition
| % | Sn | Pb | Zn | Ni | Fe | Cu |
|---|---|---|---|---|---|---|
| Min | 6.3 | 6.0 | 1.0 | ---- | ---- | 81.0 |
| Max | 7.5 | 8.0 | 4.0 | 1.00 | 0.20 | 85.0 |
Supply condition
Continuous casting
Centrifugal casting
Sand castingAvailable package sizes
Round bars1/2" – 4"12.7 mm – 101.6 mm
Hollow bars1 1/2" × 3/4" – 4" × 2"38.1 mm × 19.05 mm – 101.6 mm × 50.8 mm—
—
Typical applications
- Bushings and sleeves
- Plain bearings
- Pump and motor bushings
- Support plates and flat bearings
- Thrust washers
- Sleeves for pins and shafts
- Bushings for industrial machinery
- Light-duty gears and pinions
- Guides and wear components
- Bearings for machine tools
Note: The information and values in this data sheet are provided for reference only and may vary depending on manufacturing, treatment and application conditions. They do not constitute guaranteed specifications, so use and interpretation of this data is the user's responsibility.
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