What material are bearing seals made of?
What material are bearing seals made of?
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Bearing factory, we introduce how to maintenance shaft and gear wear and tear
by：Waxing
2020-11-17
Self-lubricating bearing factory told us that the gear pump axis wear first because axial conflict between the 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 of 45 steel or 40 cr steel from 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。
Worn parts is primary tooth meshing of gear, working face and the gear involute plane.
Minor wear and tear, the tooth surface grinding oil bill chan, two flat and lapping repair the light on the tablet.
Gear tooth face severe wear new gear should be changed, if only the two ends of the gear surface wear, light on the surface grinding machine grinding.
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