In organic chemistry, amines are compounds and functional groups that contain a basic nitrogen atom with a lone pair. Amines are formally derivatives of ammonia, wherein one or more hydrogen atoms have been replaced by a substituent such as an alkylor aryl group (these may respectively be called alkylamines and arylamines; amines in which both types of substituent are attached to one nitrogen atom may be called alkylarylamines).
Chemicals Amines,Dodecyl Amine,Dicyclohexyl Amine,Ethanol Amine Shijiazhuang Xinlongwei Chemical Co., Ltd. , https://www.xinlongwei-chem.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>How to improve the practice cooperation precision when bearing equipment How to improve the precision of practice cooperation when bearing devices
In order to improve the precision of practice cooperation in the bearing device; it is necessary to use the measuring method and measuring things that do not deform the bearing; the fine measurement of the cooperative external scale of the inner bore and the outer circle of the bearing; the inner and outer diameters can be The measurement project is measured in full; and all the measured data is analyzed; based on this; the scale of the bearing device part of the shaft and the seat hole is finely defined. The corresponding scale of the shaft and the seat hole which are measured by the practice measurement and When it is a few shapes; it should be carried out under the same temperature conditions as when measuring the bearing. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
In order to ensure a high degree of practical cooperation; shaft and seat hole and bearing-like appearance; its roughness should be as small as possible.
When making the above measurements; should be on the outer and inner holes of the bearing; and the corresponding appearance of the shaft and the seat hole; on both sides close to the installation chamfer; separate from the two sets of symbols that indicate the direction of the maximum error; In practice installation; the maximum error of the two sides is aligned with the same orientation; this way after installation; the errors on both sides are somewhat offset.
The intention of making two sets of directional marks is that the compensation of the errors can be summarized; even if the rotation precision of the two supports is improved, the coaxiality error between the two holes and the two journals is somewhat eliminated. External reinforcement measures are applied to the external appearance of the cooperation; such as sand blasting disposal; inserting the inner hole with a fine plug with a slightly larger diameter; all of which are conducive to the progress of cooperation.
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How to improve the precision of practice cooperation when bearing devices
Source: China Bearing Network Time: 2017-11-03