This standard specifies the compilation method of the code for outer spherical ball bearings with seats and their accessories. JB/T 6640-1993 Code for outer spherical ball bearings with seats JB/T6640-1993 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6640-93
Code Method
External Spherical Ball Bearings with Housings
Published on May 7, 1993
Ministry of Machinery Industry of the People's Republic of China
Implemented on January 1, 1994
3. 1. 1.2
Structural type code of outer spherical ball bearing seat
JB/T6640-93
Outer spherical ball
Outer spherical ball bearing with top screw
Outer spherical ball bearing with eccentric sleeve
Outer spherical ball bearing with tapered hole
Outer spherical ball bearing with top screw at one end
Outer spherical ball bearing with eccentric sleeve at one end Outer spherical ball bearing with flat heads at both ends
The structural type code of outer spherical ball bearing seat is expressed by uppercase Latin letters, and its code is according to Table 3. Table 3
3.1.2 Dimension series code
External spherical ball bearing
Casting vertical seat
Casting high center vertical seat
Casting narrow vertical seat
Casting square seat
Casting boss square seat
Casting diamond seat
Casting adjustable diamond seat
Casting boss round seat
Casting slider seat
Casting annular seat
Casting triangular seat
Casting hanging seat
Casting hanging seat
Stamped vertical seat
Stamped round seat
Stamped triangular seat
Stamped diamond seat
The dimension series code of the bearing with seat is expressed by the dimension series code of the bearing in the seat. The bearing dimension series code is expressed by Arabic numerals, according to Table 4.
3.1.3 Inner diameter code
Dimension series
2 series
3 series
The inner diameter code of the bearing with a housing is expressed by the inner diameter code of the bearing in the housing; its expression method shall be in accordance with the provisions of Table 5 in GB272. 3.1.4
The structural type, dimension series, inner diameter and basic code of the commonly used bearing with a housing shall be in accordance with Table 5. Structural type
With suspended seat top screw
External spherical ball bearingbZxz.net
With suspended seat top screw
External spherical ball bearing
With stamped vertical seat top screw
External spherical ball bearing
With stamped vertical seat eccentric
Sleeve external spherical ball bearing
With stamped circular seat top screw
External spherical ball bearing
With stamped circular seat eccentric
Sleeve external spherical ball bearing
With stamped triangular seat
Top screw external spherical ball bearing
With stamped triangular seat eccentric
Sleeve external Spherical ball bearing
With stamped diamond seat top screw
External spherical ball bearing
Stamped diamond seat eccentric
Sleeve external spherical ball bearing
3.2 Prefix code
JB/T6640-93
Continued Table 5
Structural type code of bearing with seat
Bearing structure
Type code
Bearing seat structure
Type code
Dimension series
Inner diameter code
The prefix code is the supplementary code added before the basic code when a dust cover is attached to the bearing with seat. The prefix code is placed in front of the basic code and separated from the basic code by ". The prefix code is represented by uppercase Latin letters. The code and its meaning are in accordance with Table 6. Table 6
Both sides of the bearing with seat (only one side for the flange seat) are cast through cover meaning
Basic code
UCFB200
UCHA200
UBPP200
UEPP200
UBPF200||tt| |UEPF200
UBPFT200
UEPFT200
UBPFL200
UBPFL200
One side of the bearing with housing is cast through cover, while the other side (only this side for flange seat) is cast blind coverBoth sides of the bearing with housing (only one side for flange seat) are stamped through cover from steel plateOne side of the bearing with housing is stamped through cover from steel plate, while the other side (only this side for flange seat) is stamped blind cover from steel plateNote:1) Square, diamond, round and triangular seats are flange seats. : Post-code
Post-code is a supplementary code added after the basic code when the bearing unit has a change in structure type, size, tolerance, technical requirements, etc.
Post-code is placed after the basic code and is represented by capital Latin letters (or numbers). 4
JB/T664093
Appendix A
New and old code comparison
(reference)
Spherical ball bearing structure type, size series and new and old bearing code comparison according to Table A1. A1
External spherical ball bearing
External spherical with top screw
Ball bearing
External spherical with eccentric sleeve
Ball bearing
External spherical with tapered hole
Ball bearing
External spherical with adapter sleeve
Ball bearing
One end flat head with top screw
External spherical ball bearing
One end flat head with eccentric sleeve
External spherical ball bearing
Both ends Flat head outer spherical
Ball bearing
Structural type
This standard (new code)
Dimension series
Bearing code
UEL200
UEL300
UK200+H000
UK300+H000
Structural type
The structural type, dimension series and new and old codes of outer spherical ball bearing seats are compared in Table A2. Table A2
External spherical ball bearing seat
Casting vertical seat
Casting high center vertical seat
Casting narrow vertical seat
Casting square seat
Casting boss square seat
Casting diamond seat
Structural type
This standard (new code)
Dimension series
Bearing seat code
FLU200
FLU300
Structural type
Original standard (old code)
Dimension series
Original standard (old code)
Dimension series
Bearing code
390500
390600
1 90500
190600
290500
290600
390200
Bearing seat code
Bearing with seat
With square seat adapter sleeve
External spherical ball bearing
With diamond seat top screw
External spherical ball bearing
With diamond seat eccentric sleeve
External spherical ball bearing
With diamond seat purple sleeve
External spherical ball bearing
With adjustable diamond seat top screw
External spherical ball bearing
With boss round seat top screw
External spherical ball bearing
With boss round seat eccentric sleeve
External spherical ball bearing||tt| |Round seat adapter sleeve with boss
External spherical ball bearing
With slider seat top screw
External spherical ball bearing
With slider seat eccentric sleeve
External spherical ball bearing
With slider seat adapter sleeve
External spherical ball bearing
With annular seat top screw
External spherical ball bearing
With annular seat eccentric sleeve
External spherical ball bearing
With suspended seat top screw
External spherical ball bearing
With suspended seat top screw
External spherical ball bearing
With stamped vertical seat top screw
External spherical ball bearing
Structural type
UKFU+H
UELFLU| |tt||UKFLU+H
UKFC+H
JB/T6640-93
Continued Table A3
This standard (new code)
Dimension series
Bearing unit with seat
UKFU200+H000
UKFU300+H000
UCFLU200
UCFLU300
UELFLU200
UELFLU300
UKFLU200+H000
UKFLU300+H000
UCFA200
UCFC200
UELFC200
UKFC200+H000
UCK200
UCK300
UELK200
UELK300
UKK200+H000
UKK300+H000
UCC200
UCC300
UELC200
UELC300
UCFB200
UCHA200
UBPP200
Structural type
F290000
L90000
L390000
L290000||tt ||LA90000
TY90000
TY390000
TY290000
K90000
K390000
K290000
Y90000
Y390000
FB90000|| tt||HA90000
CZ90000
Original standard (old code)
Dimension series
Bearing with seat
F290500
F290600
L90500
L90600
L390500
L3 90600 | | tt | | L290500 | t|| K390600
K290500
K290600
Y90500
Y90600
Y390500
tt||中People's Republic of China
Mechanical Industry Standard
Code Method for Spherical Ball Bearings with Housings
JB/T6640-93
Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (P.O. Box 8144, Beijing
Copyright reserved
Postal Code 100081)
No Reprinting
Format 880X×1230
5 Printing Sheets 3/4
Word Count 18,000
First Edition in October 1993
First Printing in October 1993
Print Count 00,001--500
Price RMB 3.00
No. 112800 yuan
No.112800 yuan
No.1128
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