NSK Bearings measurement specification error provisions

Web Design And Seo For www.china-webdesign.com

china bearing - China Manufacturer

Thank you for inquiry my china bearing, Tel: 0379-64331653, E-mail: info@lyvsg.com

http://www.lyvsg.com/key-china-bearing-factory-29/

Size benchmark requirement
In the measurement of comparative measurement method NSK Bearings dimensional tolerances to provide the amount of blocks or standard parts as a comparative measurement of the size of the base , where the amount of the block must comply with the standard JB/T1078 "provisions of the gauge block, standard parts must comply with the manufacturer The competent departments provisions.ball bearing suppliers
Provisions of the measuring instruments
Used when the measuring instrument must be calibrated, and having NSK bearings adapted to the measured accuracy and enlargement ratio.
3 Measurement region in a predetermined
For the measurement of the inner or outer diameter of NSK bearings domestic provisions within leaving ferrule southern tip surface area of ​​each of the coordinates of a maximum chamfer measurement, while the foreign multi predetermined as to leave the ferrule ends face each twice chamfered coordinates measurements within the region.
4 allow the measurement error
Can, in principle, allow the measurement error in the tolerance of 10% or less.
5 probe radius an d the pressure of the measurement table
In order to reduce the measurement error must be within a possible range, strive to reduce the pressure of the measurement table, - the measuring force and increase the radius of curvature of the measuring head.double bearing
In the measurement of the inner and outer diameters of the NSK Bearings, measuring force and the radius of curvature of the probe can be used in reference to select.