Rolling bearing convention view

Source: China Bearing Network Time: 2018-03-18

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Before the application of the bearing; in the application; after the application, it is often necessary to carry out a comprehensive routine review. This not only ensures that the manufacturer's products are qualified to leave the factory; it also enables many buyers to prevent problems before they occur; greatly enhances the bearing safety utilization factor. Wasting time; escort your bearing safety work! Tianjin Hanhuang Jinggong Trading Co., Ltd. sums up many experiences; list the routines of rolling bearings:
1. The rules of the scale benchmark are measured by the comparison measurement method for the bearing scale public service; the ruled quantity block or the standard part is used as the scale reference for the comparison measurement; the gauge block needs to conform to the rules of the standard JB/T1078 "quantity block"; It is necessary to match the rules of the competent authority of the manufacturer.
2. Rule 3 of the measurement area. The appearance of the measurement of the external appearance of the measurement is necessary to pass the calibration; and has the accuracy and amplification ratio compatible with the bearing measured.
4. The allowable measurement error can in principle allow the measurement error to be less than 10% of the public service.
5. Rule 6 for measuring load. The radius of the probe and the pressure of the gauge are used to reduce the measurement error; it is necessary to be within the range of energy; the pressure of the gauge is measured - the force is measured; and the radius of curvature of the probe is increased.
When measuring the inner and outer diameter of the bearing; the measuring force and the radius of curvature of the probe can be selected.
7. The rule for measuring the datum is about the usual rolling bearing; the non-printing end face of the ferrule is taken as the reference surface when measuring; the angular contact ball bearing and the tapered roller bearing are used; the end face receiving the thrust load is the reference surface 8. The temperature condition at the time of measurement is 9. The mandrel used for the measurement is in the measurement of Kia, Kea and Sd of the bearing; for the cylindrical bore bearing; the taper of the tapered mandrel is in principle 1/5000 l/10000; the tapered uranium bearing; the taper mandrel used The fundamental taper rule is 1/12.
The ambient temperature rule for measurement is 20 Â°C; the temperature of the bearing, the gauge block, the gauge and the measuring instrument are all the same; the above method of placing them on the same metal plate can complete the necessary temperature balance as quickly as possible; Otherwise it takes a few hours or even a few days to reach this balance.
In order to get the correct measurement results; foreign relying on the mechanization of measurement to prevent human hands from touching these objects; or wearing insulated gloves for operation.
When measuring Kia, Kea and Sia, Sea and other projects; the necessary measurement load should be applied; the rolling body and the ferrule should be in the normal touch position; to obtain a stable measurement value.
For the measurement of the inner or outer diameter of the bearing; the domestic rule is measured within the area where the south end of the ferrule is a maximum chamfering coordinate; and the foreign multi-rule is within the area of â€‹â€‹the two sides of the ferrule which are twice the chamfering coordinates. Measuring.

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