The Specific Reason Of Crusher Bearing Heating
The specific reason of crusher bearing heating
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Rolling bearings bearing technology standard pay attention to this 6 items
by：Waxing
2020-11-16
Bearing - comfortable and durable
Self-aligning roller bearing electricity department author for your explanation: rolling bearings bearing technology standard pay attention to this 6 items: 1, with the bearing and shaft adopts the basic hole system, with the bearing and the shell adopts the basic shaft system.
Bearing dimensional tolerance and revolving tolerance values according to GB307 -
The provisions of the 84.
2, cooperate with bearing journal and the bearing hole by GB1031 - in the box
The provisions of the 83 journal roughness Ra value is less than 1.
6μ
M, bearing hole roughness Ra value is less than 2 in the box.
5μ
m。
3, made of GCr15 and ZGCr15 steel bearing ring and roller, the ring and roller hardness value should be 61-65 HRC;
With GCr15SiMn and ZGCr15SiMn steel manufacturing, its hardness value should be 60 ~ 64 HRC.
Hardness test and the uniformity of the hardness of the same parts as JB1255 rules.
4, check the bearing radial clearance and axial clearance shall comply with GB4604 -
The provisions of the 84.
5, rolling bearing inner and outer ring raceway should be no peeling, serious wear and tear, can not have both internal and external ring crack;
Ball should be no wear, keep no serious deformation, turns, no abnormal noise and vibration should be gradually stop stop.
6, for C grade tolerance of tapered roller bearings, roller and ring raceway contact precision, to a certain load, under the action of staining examination, contact traces should be continuous, contact length should not be less than 80 of roller busbar.
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