|Home>Bearing knowledge> NTN bearing high temperature rigid high-end equipment needs|
NTN bearing high temperature rigid high-end equipment needs
Source: China Bearing Network Time: 2018-04-30
|/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';|
It is usually thought to exceed the temperature of 120 Â° C; high temperature operating conditions will be considered at this time; general NTN bearing steel tissue changes will occur and the yield strength will gradually decrease; loss of accuracy; when the NTN bearing temperature exceeds the tempering temperature NTN bearing data; Its hardness is significantly reduced; operating temperature exceeds 180 Â° C; hardness decreases sharply; fatigue and wear quickly in the early stages.
High temperature NTN bearing steel commonly used at 180 Â° C under low load; NTN bearing steel; can be used for high temperature tempering (160 ~ 300 Â° C); if the hardness is not met; will be able to sub-high temperature NTN bearing steel; this steel at 250 Â° C Left and right temperature GCrSiWV.
Name NTN bearing steel; NTN bearing steel has high compressive strength and fatigue limit; high hardness; high wear resistance and certain resistance; good hardenability; very strict control of sulfur and phosphorus; is a high quality steel Can not feel cold steel. Proportion: 7.81
NTN bearings operating at high temperatures; to ensure satisfactory hardness and fineness and shape stability; accuracy and center of some NTN bearing service life; in high temperature NTN bearing steel, the following requirements are required:
1) not lower than the high temperature hardness of HRC50?56; the stability of the microscopic layout;
2) Good stability at high temperature scale; thermal expansion coefficient.
3) Outstanding oxidation resistance, solid and outstanding wear resistance and fatigue strength; outstanding thermal shock resistance; and can accept sharp temperature changes; the resulting oxide film and substrate; better thermal conductivity;
4) There should be a function of NTN bearing steel and other materials.
Recommend to friends comments close window
|Bearing related knowledge|
| The work of NSK bearing view the common sense of "active bearing". The reason for the severe bearing wear of Raymond mill is analyzed. The common sense of bearing: the five major processes make the bearing work "road clearing" |
How do individuals protect front/rear wheel bearings?
This article links to http://
Please indicate the bearing network http://
Previous:Analysis of heat transfer oil pump protection method Next: Common terms of bearings (2)
Solvent Based Putty,Solvent Based Glue,Solvent Based Grease,Petroleum Based Adhesives
CHANGXING GUANGDA NEW MATERIALS CO.,LTD. , https://www.gdbentonite.com