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| General | |
|---|---|
| Brand | "Lingyue" |
| Modulus | 0.5 |
| Number of teeth | 40 |
| Tooth width | 5.5 |
| Material | iron |
| Specification and model | Gear of the 25-cylinder air pump |
| accuracy level | 8 |
| Type | Powder metallurgy gear |
| Surface treatment | Polishing |
| Heat treatment | Carburizing and quenching |














