Use and maintenance knowledge of rolling mill bearings
PRODUCT
Bearing factory in this paper, the maintenance methods of gear oil pump parts wear and tear
by：Waxing
2020-11-17
Self-lubricating bearing factory introduction axis wear mainly because of the gear pump shaft conflict between the two head and supporting roller wear, the smaller the diameter of axle.
If be slight wear and tear, but through a layer of hard chromium plating, to increase the shaft diameter size, the shaft be fixed.
If axis wear serious, should or 40 cr steel of 45 steel made from scratch, shaft blank after the coarse and fine car, bearing parts to heat treatment, hardness of HRC60 -
65, and then after grinding, make cooperation bearing parts surface roughness Ra is not greater than zero.
32μm;
Shaft roundness and cylindricity tolerance is zero.
005mm;
Cooperate with gear parts according to H7 / h6, surface roughness Ra should not be greater than zero.
63μm。
Appearance in the pump body wear mainly oil absorption period of circular arc form working face.
If appear minor wear and can be used after oil bill chan grinding deburring.
Pump body is made of cast iron casting blank forming, appear serious wear new parts should be changed.
If two leading internal gear pump are used grinding, the pump body also want to change the width of the scale, and the scale of the gear grinding both ends to remove flat, from the beginning after machining pump body of the two leading should reach the technical requirements as shown in figure 3.
Custom message
Related Products
