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Construction Machinery: Medium-Sized Excavator Hitachi
| Model | Rolling bearings number on either side | Support rollers number on either side |
|---|---|---|
| ZX80LCK | 5 | 1 |
| ZX80 | 5 | 1 |
| ZX75US-A | 5 | 1 |
| ZX75US | 5 | 1 |
| ZX70LC | 5 | 1 |
| ZX70 | 5 | 1 |
| ZX50U-2 | 4 | 1 |
| EX60LC-5 | 5 | 1 |
| EX60-5 | 5 | 1 |