This standard specifies the radial clearance value of spherical ball bearings and its measurement principles. JB/T 5304-1991 Radial clearance of spherical ball bearings JB/T5304-1991 Standard download decompression password: www.bzxz.net
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Mechanical Industry Standard of the People's Republic of China JB 5304-1991 External Spherical Ball Bearings Published on 1991-06-25 Radial Clearance Implemented on 1992-07-01 Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China Mechanical Industry Standard of the People's Republic of China External Spherical Ball Bearings Subject Content and Scope of Application Radial Clearance This standard specifies the radial clearance value and measurement principle of external spherical ball bearings. JB53041991 This standard applies to external spherical ball bearings with cylindrical bores with top screws and eccentric sleeves and external spherical ball bearings with tapered bores with adapter sleeves. Reference standards GB4604 GB6930 GB3573wwW.bzxz.Net Rolling bearings Rolling bearings Rolling bearings Radial clearance Method for measuring radial clearance The concept of radial clearance specified in this standard is defined as specified in 05.08.01 of GB6930. Radial clearance values The radial clearance values of cylindrical bore outer spherical ball bearings are as specified in Table 1. The radial clearance values of tapered bore outer spherical ball bearings are as specified in Table 2. Table 1 Bearing nominal inner diameter 1991-06-25Approved by the Ministry of Machinery and Electronics IndustryGroup 2 Light (2》narrow series, Light (5) wide series, medium (6) wide seriesBasic group Group 3 Implemented on July 1, 1992 Bearing nominal inner diameter 5Method for marking radial clearance Group 2 JB5304-1991 Light (5) wide series, medium (6) wide series Basic Group The marking method of radial clearance specified in this standard shall be in accordance with the provisions of GB4604. 6 Principles of radial clearance measurement Group 3 6.1 The radial clearance of the bearing shall be measured after surface treatment. During the measurement, one ring shall be tightened (the working surface size and geometric shape of the fixed ring shall not be changed), and the other ring shall be free to move in the diameter direction. 2 The radial clearance of each bearing shall be measured at three locations on the circumference with an interval of 120°. The arithmetic mean of the three measurements shall be within the specified range. 2 within the specified range. 6.3 When measuring the radial clearance of the bearing, it should be ensured that the symmetric axis of the inner and outer rings of the bearing does not produce an angular deviation. Additional remarks: This standard was proposed by the National Technical Committee for Standardization of Rolling Bearings, and this standard was drafted by the Luoyang Bearing Research Institute of the Ministry of Machinery and Electronics Industry. The main drafter of this standard was Ma Suqing. People's Republic of China Mechanical Industry Standard Radial Clearance of Spherical Ball Bearings JB 53041991 Published by the China Academy of Mechanical Science Printed by the China Academy of Mechanical Science (No. 2, Shouti South Road, Beijing Postal Code: 100044) Format: 880×1230 Print Sheet: 3/8 Word Count: 4,000 First Edition: September 1991 First Printing: September 1991 Print Quantity: 1—2000 Price: RMB 0.60 Mechanical Industry Standards Service Network: http://www.JB.ac.cn16 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.