Home>Bearing knowledge>Rules conditions for NSK bearing conventions

/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131";

Rule conditions for NSK bearing conventions

---

/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

When reviewing the practice of rolling NSK bearing goods; it is necessary to carry out the conditions in accordance with the rules of the national regulations.
(1) The ambient temperature rule for measuring the temperature conditions at the time of measurement is 20 °C; the temperature of the NSK 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 several 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.
(2) The rule of the measurement area is about the inner diameter or the outer diameter of the NSK bearing; the domestic rule is measured within the area where the south end of the ferrule is a maximum chamfer coordinate; and the foreign rules are on both ends of the ferrule. Measured within the area of ​​twice the chamfering coordinates.
(3) The rule of the scale benchmark is to measure the NSK bearing scale public service by using the comparison measurement method; the rule quantity block or the specification piece is used as the scale reference for the comparison measurement; the gauge block is necessary to conform to the specification JB/T1078 "Quantity block" Rules; it is necessary for the specification to conform to the rules of the competent authority of the manufacturer.
(4) The appearance of the measurement of the external appearance is necessary to pass the calibration; and it has the accuracy and amplification ratio compatible with the measured NSK bearing.
(5) The allowable measurement error can in principle allow the measurement error to be less than 10% of the public service.
(6) The radius of the probe and the pressure of the gauge to reduce the measurement error; it is necessary to be within the range of energy; strive to reduce the pressure of the gauge - measure the force; and increase the radius of curvature of the probe.
When measuring the inner diameter and outer diameter of the NSK bearing; the measuring force and the radius of curvature of the probe can be selected.
(7) The mandrel used for the measurement is in the measurement of Kia, Kea and Sd of NSK bearings; the cylindrical NSK bearing; the taper of the tapered mandrel is in principle 1/5000-l/10000; The basic taper rule for the taper mandrel used is 1/12.
(8) Rules for measuring load When measuring Kia, Kea and Sia, Sea, etc.; 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.
(9) The rule for measuring the reference plane is about rolling the NSK bearing; the non-printing end face of the ferrule is taken as the reference surface when measuring; the NSK bearing and the tapered roller NSK bearing are used for the angular touch ball; the end face receiving the thrust load is taken as the reference surface.
When viewing NSK bearings; do not expose NSK bearings to contaminants or moisture. If the work is stopped, cover the machine with oil-paper plastic sheets or similar materials.
Remove unshielded NSK bearings without having to disassemble them; perform a white brush with a brush for application; then dry with a lint-free cloth or use compressed air Blow dry (focus on not letting the NSK bearing assembly start to rotate).
Use a small mirror and a probe used by a similar dentist to view the track surface, the holder and the beads of the NSK bearing. If the NSK bearing is not damaged; it should be based on the smooth explanation provided by the original machine or on page 204 of this book. The 247-page claim fulfills smoothness.

---

Recommend to friends comments close window

Bearing related knowledge

INA bearing smooth method bearing knowledge Daquan (3) US FAFNIR company bearing make up code (2) Overview of Bearing Selection Overview of Common Bearings for Imported Bearings

This article links to http://
Please indicate the bearing network http://

Previous: TORRINGTON company bearing make up code (1)
Next: The drawing characteristics and use of Timken's light seals

Steel Precision Machining Components

Steel Precision Machining Components,Steel Cnc Machining Parts,Cnc Machining Steel Parts,Cnc Precision Machined Components

Stand Dragon Industrial Co., Ltd. , https://www.standdragontw.com