This standard applies to full complement needle roller bearings and is provided for design and inspection by bearing manufacturers and selection and acceptance by users. This standard does not apply to stamped outer ring full complement needle roller bearings. JB/T 3588-1994 Rolling bearings Full complement needle roller bearings Dimensions and tolerances JB/T3588-1994 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Rolling Bearings
Full complement needle roller bearings
Dimensions and tolerances
JB/T 3588 - 94
Replaces JB358884
This standard refers to and adopts the international standard ISO1206-1982 "Needle roller bearings - light and medium series - dimensions and tolerances". 1 Subject content and scope of application
This standard specifies the dimensions and tolerances of full complement needle roller bearings of series 48, 49 and 40. This standard applies to full complement needle roller bearings for design and inspection by bearing manufacturers and selection and acceptance by users. This standard does not apply to full complement needle roller bearings with stamped outer rings. 2 Reference standards
GB307.1 Rolling bearing tolerances
GB1801 Tolerances and fits to 500mm bore, shaft tolerance zones and fits 3 Symbols (see Figures 1 and 2)
d: Nominal inner diameter
D: Nominal outer diameter
B: Nominal width of inner ring
C: Nominal width of outer ring
Fw: Inner diameter of needle roller set
Fwnin: Minimum single inner diameter of needle roller set
AFwmin: Needle roller set Minimum single inner diameter deviation r: Nominal chamfer size
rn: Minimum one-way size
Figure 1 Full complement needle roller bearing
NAＶ type
Marking example: Rolling bearing NAV4910JB/T3588--94 Approved by the Ministry of Machinery Industry on 1994-07-26
Full complement needle roller bearing without inner ring RNA type
Implementation on 199507.01
, overall dimensions
The overall dimensions are in accordance with the specifications in Table 1 and Table 2.
Bearing code
NAV type
NAV4822
NAV 1824
NAV 4826
NAV4828
NAV4830
NAV 1832
NAV4834
NAV4836
NAV 4838
NAV 4840
NAV 4844
NAV 4848
NAV 4852
NAV 4856
NAV4860
RNAV typebzxZ.net
RNAV 4822
RNAV 4824
RNAV 4826
RNAV 4828
RNAV4830
RNAV 4832
RNAV 4834
RNAV 4836
RNAV 4838
RNAV 4840
RNAV 4844
RNAV 4848
RNAV 4852
RNAV 4856
RNAV 4860
Bearing code
NAV type
NAV 4902
NAV4903
NAV 4904
NAV4905
NAV 4906
NAV 4907
NAV 4908
NAV 4909
NAV 4910
NAV 4912
NAV4914
NAV 4916
NAV 4918
NAV 4919
NAV 4920
NAV 4922
NAV 4924
NAV4926
NAV4928
5 tolerance
RNAV type
RNAV 4902
RNAV 4903
RNAV 4904
RNAV 4905
RNAV 4906
RNAV 4907
RNAV 4908
RNAV 4909
RNAV 4910
RNAV 4912
RNAV 4914
RNAV 4916
RVAV 4918
RNAV 4919
RNAV 4920
RNAV 4922
RNAV 4924
RNAV 4926
RNAV 4928
JB/T3588-94
Table 148 series
49 series
5.1 The minimum single inner diameter tolerance of needle roller sets shall be in accordance with the provisions of Table 3. 440
Inch, mm
Inch·mm
JB/T358894
Upper deviation
AFwnin em
-+- 25
Note: The tolerance values ​​in the table are valid only when the diameter variation in a single radial plane on the outer surface of the bearing is less than the tolerance range of the minimum diameter (Fmin). 2 The tolerances of other dimensions shall be in accordance with the provisions of GB307.1 for Class 0 bearing tolerances. However, the diameter variation of the inner hole (or outer surface) in a single-radial plane 5.2
shall comply with the provisions of the manufacturing authority. 441
JB/T3588--94
Appendix A
Boundary dimensions of 40 series full complement needle roller bearings (supplement)
Boundary dimensions of A140 series full complement needle roller bearings are as specified in Table A1Table A140 series
Shaft code
NAV type
NAV4003
NAV 1004
NAV 4005
NAV 4006
NAV 4007
NAV 4008
NAV 4009
NAV MO1O
NAV 4011
NAV 4012
NAV 4013
NAV 4014
NAV 1015
NAV 4016
NAV 1017
RNAV type
RNAV 1003
RNAV 4004
RNAV4005
RNAV 1006
RNAV 4007
RNAV 4008
RNAV4009
RNAV 4010
RNAV 4011
RNAV 4012
RNAV 4013
RNAV 4014
RNAV4015
RNAV 4016
RNAV 4017
Dimensional tolerances and form tolerances of housing bore
Appendix B
Technical conditions for the fit between shaft and housing and bearing (supplement)
Inch, mm
The housing bore is manufactured according to K6 specified in GB1801. The cylindricity of the housing bore shall be within 50% of its dimensional toleranceB2 and shafts matching bearings without inner rings
B2.1 Dimensional tolerances
The dimensional tolerances of the shaft are recommended in Table B1 according to the provisions of GB1801. Table B1
Diametric clearance
Greater than 0 group
B2.2 Surface hardness and depth of hardened layer of the shaft raceway The surface hardness of the shaft raceway is HRC58～64.
The depth of the hardened layer on the raceway surface of the shaft is 0.6～1mm. B2.3 The surface roughness of the raceway surface of the shaft is Rao.20um.
B2.4Shaft raceway surface shape tolerance
JB/T3588
The cylindricity of the shaft raceway surface should be within 50% of its size tolerance. Appendix C
New and old bearing code comparison
(reference)
1New and old bearing code comparison shall be in accordance with the provisions of Table C1. C1
Bearing name
Full complement needle roller bearing
Full complement without inner ring
Needle roller bearing
Additional instructions:
NAV4800
NAV4900
NAV4000
RNAV4800
RNAV4900
RNAV4000
This standard is proposed by the National Technical Committee for Standardization of Rolling Bearings. This standard is drafted by Luoyang Bearing Research Institute of the Ministry of Machinery Industry. The drafter of this standard is Li Feixue.
4074800E
4074900F
1074100
1081800E
4084900E
4084100
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