JB/T 8204-1996 Rolling bearing laser steel ball surface roughness measuring instrument JB/T8204-1996 standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T 8204 96
Rolling bearings
Laser steel ball surface roughness measuring instrument
Published on September 3, 1996
Ministry of Machinery Industry of the People's Republic of China
Implementation on July 1, 1997
Jk/T8204
The technical standard was changed to the previous standard.
This standard was proposed by the National Technical Committee for Standardization of Rolling Bearings and drafted by the Ministry of Machinery Industry Luoyang Bearing Research Institute. The drafter of this standard is:
Standard of the Machinery Industry of the People's Republic of China
Rolling Bearings
Laser Steel Ball Surface Roughness Measuring Instrument
JR/T 8204-96
The standard stipulates the technical requirements, testing methods, marking and packaging of the laser ball surface roughness measuring instrument used to test the surface roughness of steel balls with a diameter of 1)%45--50mm. 2 Reference StandardsbZxz.net
The following standards contain exclusive texts that have been specially included in this standard and have become the texts of this standard through re-introduction. When this standard is published, the version indicated is valid. All standards will be interpreted as follows: the parties using this standard should explore the possibility of using the latest version of a list of standards GB3CR--RY
deep motion bearing plastic ball
G359583 surface roughness table and its dream number J [3/T550? 9 micro-motion auxiliary bearing test equipment general technical conditions 3 definition
this standard adopts the following definitions,
table and roughness: in accordance with the provisions of GB3505, incident and spot: the surface of the light beam projected onto the surface of the steel ball. Reflection core: the image of the shape of the light after being reflected by the measured ball. Diffuse light ring: the image of the shape of the incident light spot after being irradiated by the measured ball. Microscopic roughness: the ratio of the light energy of the incident light ring to the light energy of the reflected light core R. This value is equal to the measured wind component R value.
4 Technical requirements
4.1 Parameters and specifications
Quantity: 4.5-50m in diameter.
Test standard, 0.cC5*0.320m.
Calibration error: 10%,
Repeat accuracy: ±0.02m
Indication stability: 4.2 Transmission components
4.21 The height of the lifting and lowering section shall not be less than 5(mm. It is required to be flexible within this range. 4.2.2 The probe can slide up and down. The moving distance of the adjustment plate is 10cm, and the adjustment accuracy is ±0.1mtr: 4.2.3 The angle handwheel can be flexibly rotated in a variety of ways. The maximum rotation adjustment amount is 40*. It is required to be able to stop stably at any angle within this range. There should be no sliding between the handle and the transmission shaft. 4.3 Electrical box
Approved by the Ministry of Machinery Industry on 19-9-1997
Implementation on July 1, 1997
JB/T Z04-96
\Efficiency standard\ file, R. display 0.034um=c.001μr., "avoid the file. R display.nourn.
4.4 Appearance requirements of the instrument
The engraved lines and characters on the instrument panel should be clear, and the digital display should be bright. All working surfaces should be free of rust, bruises, cracks, sand, burrs and other defects. Non-working surfaces should be sprayed, chained or irradiated. The surface should be smooth, neat, uniform, and free of pores, bubbles and paint peeling. 4.5 Working environment of the instrument tube
Temperature 10 --40℃ relative temperature less than % power supply 220V-82V, 50H, with power line, only the instrument should be used away from strong light and direct judgment, and should be installed in the calibration station or indoor far away from the power source. 5 Inspection method
5.1 Environmental inspection
According to the provisions of 4.6,
5.2 Electrical box inspection
Set the "test disk/calibration" switch to the "calibration" position. R should show U.-m ± C. U01Km. Set the test disk to the "calibration" position. R should show 0.00m. No ball measurement!
5.3 Transmission Inspection of moving parts shall be selected from 2.1.4.2.2 and 4.2.3, and shall meet the requirements of the above clauses. 5.4 Calibration of instrument: Use a steel ball with an average R value of 0.1~0.150m to measure the contour on multiple surfaces. Measure the signal Ru on the laser receiver. The result shall meet the requirements of 4.1. 5.5 Inspection of instrument repeatability: Use a G10 ball of 808 grade G10, after adjustment according to the test procedure, complete the measurement and repeat the measurement for 10 times to obtain 10 data. , calculate the difference between the maximum value and the average value, which is the weight, which shall comply with the provisions of 4.1. 5.6 The test of the stability of the indication value shall be carried out using the G1C level ball of GB308. After adjusting the range according to the operating regulations, read the value for 30 minutes and measure it continuously for h to calculate the average value: the difference between the maximum value, the minimum value and the average value shall comply with the provisions of 1.1. 5. The inspection of the instrument shall comply with the provisions of JB/T5307, and the marking, packaging and state packaging of the instrument shall comply with the provisions of JB/T5037. 2
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