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

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
GB3573
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 BearingswwW.bzxz.Net
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
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