The entire rotor of the self-balancing wear-resistant multistage centrifugal pump is supported by the cylindrical roller bearing "GB/T283-94" at the driving end and the angular contact ball bearing "GB/T292-94" at the end. The bearing uses CD30 or CD40 mechanical oil added to the bearing Lubricate the body to the center of the oil lens. Because the bearing adopts "GB/T292-94" angular contact ball bearing, the assembled pump rotor has no axial movement.
Assembled and matched rotor parts, the main parts of the runout shall not exceed the provisions of the following table:
The main part of self-balancing wear-resistant multi-stage centrifugal pump rotor parts bounce unit: mm
|
Nominal diameter |
≤50 |
＞50～120 |
＞120～260 |
＞260～500 |
|
The impeller seal ring bounces |
0.08 |
0.1 |
0.12 |
0.16 |
|
Outer circle runout of bearing |
0.08 |
0.1 |
0.12 |
0.16 |
|
The end face of the balance plate bounces |
— |
0.05 |
0.07 |
— |
