Bearing tolerance includes dimensional tolerance and revolving tolerance, Dimensional tolerance is a request when bearings are mounted on shafts or in housings. It includes bore/outer side diameter deviation from basic, inner ring/outer ring width deviation in single radial plane. Revolving tolerance includes radial and axial run out of assembled bearing inner ring and outer ring, inner ring reference face run out with bore and outside cylindrical surface run out with outer reference face.
MXB bearings are divided into five grade of tolerance with China national standard:GB/T307.1-2005
|
国别COUNTRY |
标准号STANDARD |
精度等级 TOLERANCE CLASS |
|
中国 CHINA |
GB307 |
0（G） |
6（E） |
5（D） |
4（C） |
2（B） |
|
国际 ISO |
ISO492 |
0 |
6 |
5 |
4 |
2 |
|
德国 GERMANY |
DIN 620/2 |
P0 |
P6 |
P5 |
P4 |
P2 |
|
美国 USA |
ANSI B3.14 |
ABEC-1 |
ABEC-3 |
ABEC-5 |
ABEC-7 |
ABEC-9 |
|
日本 JAPAN |
JIS |
JIS-0 |
JIS-6 |
JIS-5 |
JIS-4 |
JIS-2 |
表一内圈0级公差 Table 1 Inner Ring of 0 Grade Tolerance
d(mm) |
 dmp
|
Vdp2) |
Vdmp |
Kia |
 Bs
|
VBs |
|
直径系列Diameter Series |
|
9 |
0,1 |
2,3,4 |
全部
All |
正常Normal |
修正
Amended3) |
|
› |
≤ |
上差High |
下差Low |
|
Max. |
|
Max. |
Max. |
上差
High |
下差
Low |
Max. |
|
0.61) |
2.5 |
0 |
-8 |
10 |
8 |
6 |
6 |
10 |
0 |
-40 |
- |
12 |
|
2.5 |
10 |
0 |
-8 |
10 |
8 |
6 |
6 |
10 |
0 |
-120 |
-250 |
15 |
|
10 |
18 |
0 |
-8 |
10 |
8 |
6 |
6 |
10 |
0 |
-120 |
-250 |
20 |
|
18 |
30 |
0 |
-10 |
13 |
10 |
8 |
8 |
13 |
0 |
-120 |
-250 |
20 |
|
30 |
50 |
0 |
-12 |
15 |
12 |
9 |
9 |
15 |
0 |
-120 |
-250 |
20 |
|
50 |
80 |
0 |
-15 |
19 |
19 |
11 |
11 |
20 |
0 |
-150 |
-380 |
25 |
|
80 |
120 |
0 |
-20 |
25 |
25 |
15 |
15 |
25 |
0 |
-200 |
-380 |
25 |
Note:
1)Including 0.6
2)Diameter series 7 and ,no regular cost
3)Indicating the single internal ring of the earing to be used in pari of group during installation
表二 外圈0级公差 Table 2 Out Ring of 0 Grade Tolerance
|
D(mm) |
 dmp
|
Vdp2)4) |
Vdmp4) |
Kea |
 Cs
 Cis5)
|
Vcs
Vcis5) |
|
开型轴承Open Bearing |
闭型轴承Capped Bearings3) |
|
直径系列Diameter Series |
|
9 |
0,1 |
2,3,4 |
2,3,4 |
|
› |
≤ |
上差High |
下差Low |
Max. |
Max. |
Max. |
上差
High |
下差
Low |
Max. |
|
2.51) |
6 |
0 |
-8 |
10 |
8 |
6 |
10 |
6 |
15 |
与统一轴承内圈的VBs及∆BS相同
Identical to ∆BS and VBs of inner ring of same bearing |
|
6 |
18 |
0 |
-8 |
10 |
8 |
6 |
10 |
6 |
15 |
|
18 |
30 |
0 |
-9 |
12 |
9 |
7 |
12 |
7 |
15 |
|
30 |
50 |
0 |
-11 |
14 |
11 |
8 |
16 |
8 |
20 |
|
50 |
80 |
0 |
-13 |
16 |
13 |
10 |
20 |
10 |
25 |
|
80 |
120 |
0 |
-15 |
19 |
19 |
11 |
26 |
11 |
35 |
|
120 |
150 |
0 |
-18 |
23 |
23 |
14 |
30 |
14 |
40 |
|
150 |
180 |
0 |
-25 |
31 |
31 |
19 |
38 |
19 |
45 |
|
180 |
250 |
0 |
-30 |
38 |
38 |
23 |
- |
23 |
50 | Note:
1)Including 2.5
2)Diameter series 7 and 8,no regular cost
3)Diameter series 9.0 and 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.
表三 内圈6级公差Table 3 Inner Ring of 6Grade Tolerance
|
d(mm) |
 dmp
|
Vdp2) |
Vdmp |
Kia |
 Bs
|
VBs |
|
直径系列Diameter Series |
|
9 |
0,1 |
2,3,4 |
全部
All |
正常
Normal |
修正
Amended3) |
|
› |
≤ |
上差
High |
下差
Low |
|
Max. |
|
Max. |
Max. |
上差
High |
下差
Low |
Max. |
|
0.61) |
2.5 |
0 |
-7 |
9 |
7 |
5 |
5 |
5 |
0 |
-40 |
- |
12 |
|
2.5 |
10 |
0 |
-7 |
9 |
7 |
5 |
5 |
6 |
0 |
-120 |
-250 |
15 |
|
10 |
18 |
0 |
-7 |
9 |
7 |
5 |
5 |
7 |
0 |
-120 |
-250 |
20 |
|
18 |
30 |
0 |
-8 |
10 |
8 |
6 |
6 |
8 |
0 |
-120 |
-250 |
20 |
|
30 |
50 |
0 |
-10 |
13 |
10 |
8 |
8 |
10 |
0 |
-120 |
-250 |
20 |
|
50 |
80 |
0 |
-12 |
15 |
15 |
9 |
9 |
10 |
0 |
-150 |
-380 |
25 |
|
80 |
120 |
0 |
-15 |
19 |
19 |
11 |
11 |
13 |
0 |
-200 |
-380 |
25 |
Note:
1)Including 0.6
2)Diameter series 7 and ,no regular cost
3)Indicating the single internal ring of the earing to be used in pari of group during installation
表四外圈6级公差Table 4 Our Ring of 6Grade Tolerance
|
D(mm) |
 dmp
|
Vdp2)4) |
Vdmp4) |
Kea |
 Cs
 Cis5)
|
Vcs
Vcis5) |
|
开型轴承Open Bearing |
闭型轴承Capped Bearings3) |
|
Diameter Series |
|
9 |
0,1 |
2,3,4 |
0,1,2,3,4 |
|
› |
≤ |
上差High |
下差Low |
Max. |
Max. |
Max. |
上差
High |
下差
Low |
Max. |
|
2.51) |
6 |
0 |
-7 |
9 |
7 |
5 |
9 |
5 |
8 |
与统一轴承内圈的VBs及∆BS相同
Identical to ∆BS and VBs of inner ring of same bearing |
|
6 |
18 |
0 |
-7 |
9 |
7 |
5 |
9 |
5 |
8 |
|
18 |
30 |
0 |
-8 |
10 |
8 |
6 |
10 |
6 |
9 |
|
30 |
50 |
0 |
-9 |
11 |
9 |
7 |
13 |
7 |
10 |
|
50 |
80 |
0 |
-11 |
14 |
11 |
8 |
16 |
8 |
13 |
|
80 |
120 |
0 |
-13 |
16 |
16 |
10 |
20 |
10 |
18 |
|
120 |
150 |
0 |
-15 |
19 |
19 |
11 |
25 |
11 |
20 |
|
150 |
180 |
0 |
-18 |
23 |
23 |
14 |
30 |
14 |
23 |
|
180 |
250 |
0 |
-20 |
25 |
25 |
15 |
- |
15 |
25 |
Note:
1)Including 2.5
2)Diameter series 7 and 8,no regular cost
3)Diameter series 9.0 and 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. |
