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Roling bearings-Radial bearings-Tolerances

中华人民共和国国家标准 GB/T307.1-94 

Appwndix 1 Table 1 Inner Ring Of Grade Tolerance

d mm

△dmpVdp 2)VdmpKia△BsVBS
Diameter series
90,12,3,4全部正常修正 3)
overincl.highlowmax.max.max.highlowmax.
0.6 1)2.50-810866100-40-12
2.5100-810866100-120-25015
10180-810866100-120-25020
18300-10131088130-120-25020
30500-12151299150-120-25020
50800-1519191111200-150-38025

Note:

1)Including 0.6

2)Diameter series 7and8 ,no regular cost.

3)Ineicating the single internal ring of the bearing to be used in pair or group during installation.


Table 2 Out Ring Of Grade Tolerance

D mm

△DmpVDP 2)VDMP 4)Kea△Cs △Cis 5)Vcs Vcis 5)
Open BearingsCapped Bearings 3)
Diameter series
90,12,3,42,3,4
overincl.highlowmax.max.max.highlowmax.
2.5 1)60-8108610615Identical to △Bs and VBs of inner ring of same bearing
6180-8108610615
18300-9129712715
30500-111411816820
50800-13161310201025
801200-15191911261135


Note:

1)Including2.5.

2)Diameter series 7 and 8 no regular cost.

3)Diameter series 9.0and 1,no regular cost

4)Suitable for inside and outside brake ring before installation or after discharge.

5)Only suitable for groove type ball bearing.



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