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