HITACHI EX90（78Z）
Product Parameters
| HITACHI Model | HITACHI EX90（78Z） | QIBR Drawing No. | QNA900.25Z1 |
| Bearing Type | Four-Point Contact Ball | Closure Type | Double Seals |
| Bearing Material | 42CrMo, 50Mn etc | Seal Material | FPM, NBR |
Overall Dimensions
| Outer Diameter (D) | 993mm | Inner Diameter(d) | 764mm |
| Overall Width(H) | 78mm | Width of Outer Ring | 62mm |
| Width of Inner Ring |
68mm | Approximate Weight | 135kg |
Mounting Holes
| Diameter of Mounting Holes at Outer Ring | 18mm | Number of Holes at Outer Ring | 28 |
| Diameter of Mounting Holes at Inner Ring | 20mm | Number of Holes(z) | 36 |
Gear Data
| Gear Tooth Width (b) | Ask Us | Modulus(m) | Ask Us |
| Tip Diameter (da) | Ask Us | Number of gear teeth (z) | 78 |
