JB/T 5303-1991 Supplementary structural dimensions of external spherical ball bearings with seats JB/T5303-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB 5303-1991
Outer spherical ball bearings with seats
Supplementary structure and dimensions
Published on June 25, 1991
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on July 1, 1992
Mechanical Industry Standard of the People's Republic of China
Outer spherical ball bearings with seats
Dimensions
Supplementary structure
Subject content and scope of application
JB 53031991
This standard specifies the structural type and dimensions of outer spherical ball bearings with seats (hereinafter referred to as seat bearings) that are not specified in GB7810.
This standard applies to light and wide series of outer spherical ball bearings with high center vertical seats, narrow vertical seats, adjustable diamond seats, suspension seats, and suspension seats.
The bearing seat must be equipped with a lubricating device, and the position of the lubricating device should correspond to the position of the bearing oil hole in GB3882. 2 Reference standards
GB3882
GB7810
JB5302
Outer spherical ball bearings and eccentric sleeves Outer spherical ball bearings with seats
Outer spherical ball bearing seats
Supplementary structure
Outer dimensions
The bearing with a seat is composed of the bearing specified in GB3882 and the bearing seat specified in JB5302. The types are: with high center vertical seat bearing, see Figure 1 to Figure 3; a.
b. with narrow vertical seat bearing, see Figure 4 to Figure 6: c. with adjustable diamond seat bearing, see Figure 7 to Figure 9; d. with hanging seat bearing, see Figure 10 to Figure 12; e. with hanging seat bearing, see Figure 13 to Figure 15. Model
The model of the bearing seat is composed of the Chinese phonetic letter representing the bearing seat and the bearing model according to the provisions of GB7810. 5Comply with
B: Nominal width of bearing inner ring
B: Width of bearing inner ring with eccentric sleeve
Bz: Width of adapter sleeve
d: Nominal inner diameter of bearing and eccentric sleeve
do: Nominal inner diameter of adapter sleeve
S: Distance from the end face of bearing inner ring without fastening device to the center of the grooveA: Nominal width of bearing seat; Nominal height of adjustable diamond seatA2: Distance from the center of the spherical surface of adjustable diamond seat and suspension seat to the mounting planeApproved by the Ministry of Machinery and Electronics Industry on June 25, 1991 and implemented on July 1, 1992||t t||JB5303-1991
C: Distance between the center of the spherical surface of the suspension seat and the center of the suspension screw hole H: Center height of the vertical seat; Nominal length of the adjustable diamond seat; Distance between the center of the suspension seat ball diameter to the top of the suspension H: Nominal height of the bearing seat
J: Center distance of the bearing seat screw holesbzxZ.net
L: Nominal length of the vertical seat; Nominal width of the adjustable diamond seat, suspension seat and suspension seat 6 Overall dimensions
Bearings with high center vertical seat
Bearings with high center vertical seat (see Figure 1 to Figure 3), the overall dimensions are as specified in Table 1. Marking example:
External spherical ball bearing with high center vertical seat top thread ZH90505
JB530391
Figure 1External spherical ball bearing with high center vertical seat top thread ZH90000 type JB5303-1991
Figure 2External spherical ball bearing with high center vertical seat adapter sleeve ZH290000 typeFigure 3External spherical ball bearing with high center vertical seat eccentric sleeve ZH3900 00 type intelligent seat bearing model
ZH90000
ZH90501
ZH90502
ZH90503
ZH90504
ZH90505
ZH90506
ZH90507
ZH90508
ZH90509
Z H90516
ZH29000
ZH290504
ZH290505
ZH290506
ZH290507
ZH290508
ZH29050
ZH390000
ZH390501
2H390502|| tt||ZH390503
ZH390504
ZH390505
ZH390506
2H390507
ZH390508
ZH390509
ZH390510
Bearing with high center plummer block
Light (5) chamber series
JB 53031991
6.2 Bearing with narrow plummer block
JB5303-1991
Bearing with narrow plummer block (see Figures 4 to 6), the overall dimensions are as specified in Table 2. Marking example:
External spherical ball bearing with narrow vertical seat top thread ZA90505JB5303-91Figure 4External spherical ball bearing with pull-up seat top thread ZA90000Figure 5External spherical ball bearing with narrow vertical seat adapter sleeve ZA290000Figure 6External spherical ball bearing with narrow vertical seat eccentric sleeve ZA390000Smart seat bearing model
ZA90000||tt ||ZA90501
ZA90502
ZA90503
ZA90504
ZA90505
ZA90506
ZA90507
ZA90S0
ZA90509
ZA905 16
ZA2900 00 | | tt | | ZA290504 | 390502
ZA39 0503
ZA390504
ZA390505
ZA390506
ZA390507
ZA390500
ZA390509
ZA390510
Table 2 Narrow vertical seat auxiliary bearing
Light (5) chamber series
JB 53031991
6.3 Bearing with adjustable diamond seat
JB5303-1991
Bearing with adjustable diamond seat (see Figure 7 to Figure 9), the overall dimensions are as specified in Table 3. Marking example:
External spherical ball bearing with adjustable diamond seat top thread LA90505JB530391Figure 7External spherical ball bearing with adjustable diamond seat top thread LA90000Figure 8External spherical ball bearing with adjustable diamond seat adapter sleeve LA290000Figure 9External spherical ball bearing with adjustable diamond seat eccentric sleeve LA390000Salt seat platinum bearing model
ZA90000
LA90501
LA90502
LA90503
LA90504
LA90505
LA90506
LA90507
LA90508
LA90509
LA90510
LA90511|| tt||ZA290000||tt ||LA290504
LA290505
LA290506
LA290507
LA290508
LA290509
LA290510
ZA390000
LA390501
LA3 90502
LA3905 03
LA390504
LA390505
LA390506
LA390507
LA390500
LA390509
LA390510
LA390511
With adjustable diamond seat bearing
Light (5) chamber oxygen column
JB 53031991
6.4 Suspension seat bearing
JB5303-1991
Suspension seat bearing (see Figure 10 to Figure 12), the outer dimensions are in accordance with the provisions of Table 4. Marking example:
Suspension seat top thread outer spherical ball bearing FB90505JB5303-91
Suspension seat top thread outer spherical ball bearing FB90000 type suspension seat adapter sleeve outer spherical ball bearing FB290000 type 6.5 suspension seat bearing
JB5303-1991
Figure 12 Suspension seat eccentric sleeve outer spherical ball bearing FB390000 type suspension seat bearing (see Figure 13 to Figure 15), the outer dimensions are in accordance with the provisions of Table 5. Marking example:
External spherical ball bearing with suspended seat top thread HA90505JB530391
Figure 13 External spherical ball bearing with suspended seat top thread HA90000 type 10
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