滚动系列尺寸列表
材料 Material
SFB轴承套圈和钢球采用精炼承钢GCr15(AISI 52100)制造,保持架采用黄铜带(H62)或优质冷轧钢带(SPCC BQB402)冲压制成,必要时可用增强工程塑料制造,防尘盖采用进口专用材料(SPCC JISG3141)或不锈钢带(ICr18Ni9)制成,密封圈采用磷化钢骨架和丁腈耐油橡胶热压制成。
不锈钢轴承的套圈和钢球采用精炼不锈钢9Crl8(AISI 440C)制造。
轴承钢、不锈钢的化学成分见下表:
钢号Steel No |
C% |
Si% |
Mn% |
S% |
P% |
Cr% |
GCr15 |
0.95-1.05 |
0.15-0.3 |
0.25-0.45 |
<0.025 |
<0.025 |
1.3-1.6 |
9Cr18 |
0.90-1.05 |
<0.8 |
<0.8 |
<0.04 |
<0.03 |
16-19 |
包装 Packing
轴承一般用塑料管或薄膜袋包装,然后装入外包装纸箱内,小型轴承也可每套装一小盒,用户对包装有要求时,可在合同上注明。
精度 Tolerance
SFB轴承一般为电机级轴承,最常用的轴承公差精度见附表所示。当客户对精度有特殊要求时,订货时就规定之。
公差级别比较
Comparisiion Table Of Tolerance Grade:
国别Country |
标准Standard |
公差级别Tolerance Grade |
China |
GB |
0 |
6 |
5 |
4 |
American |
ANSI |
ABEC-1 |
ABEC-3 |
ABEC-5 |
ABEC-7 |
|
ISO |
0 |
6 |
5 |
4 |
Germany |
DIN |
P0 |
P6 |
P5 |
P4 |
Japan |
JIS |
P0 |
P6 |
P5 |
P4 |
径向游隙Radial Play
轴承的径向游隙按照国家标准GB4604规定为五组,如下表所示:
轴承内径 |
第2组C2 |
基本组 |
第3组C3 |
第4组C4 |
第5组C5 |
bearing bore(mm) |
group 2-C2 |
C0basic group C0 |
group 3-C3 |
group 4-C4 |
group 5-C5 |
超过 |
到 |
最小 |
最大 |
最小 |
最大 |
最小 |
最大 |
最小 |
最大 |
最小 |
最大 |
over |
inct. |
min |
max |
min |
max |
min |
max |
min |
max |
min |
max |
2.5 |
6 |
0 |
7 |
2 |
13 |
8 |
23 |
14 |
29 |
20 |
37 |
6 |
10 |
0 |
7 |
2 |
13 |
8 |
23 |
18 |
33 |
25 |
45 |
10 |
18 |
0 |
8 |
3 |
18 |
11 |
25 |
20 |
36 |
28 |
48 |
18 |
24 |
0 |
10 |
5 |
20 |
13 |
28 |
23 |
41 |
30 |
53 |
24 |
30 |
1 |
11 |
5 |
20 |
13 |
28 |
28 |
43 |
40 |
64 |
30 |
40 |
1 |
11 |
6 |
20 |
15 |
33 |
|
|
|
|
特殊的径向游隙或轴向游隙要求,可按订货规定生产。
振动和噪音
深沟球轴承加速度振动值(dB)见表1
深沟球轴承速度级,振动值(μm/s)见表2
表1单个轴承振动加速度级(dB)不超过
轴承内径 |
直径系列(0) |
直径系列(2) |
直径系列(3) |
bearing bore mm |
Z |
Z1 |
Z2 |
Z3 |
Z |
Z1 |
Z2 |
Z3 |
Z4 |
Z |
Z1 |
Z2 |
Z3 |
Z4 |
3 |
35 |
|
|
|
|
|
|
|
|
|
|
|
|
- |
4 |
35 |
34 |
32 |
28 |
36 |
35 |
32 |
30 |
- |
37 |
36 |
33 |
31 |
- |
5 |
37 |
34 |
32 |
28 |
36 |
35 |
32 |
30 |
- |
37 |
36 |
33 |
31 |
- |
6 |
37 |
36 |
34 |
30 |
38 |
37 |
34 |
32 |
- |
39 |
37 |
35 |
33 |
- |
7 |
39 |
36 |
34 |
30 |
38 |
37 |
34 |
32 |
- |
39 |
37 |
35 |
33 |
- |
8 |
39 |
38 |
35 |
31 |
40 |
38 |
36 |
34 |
- |
- |
- |
- |
- |
- |
9 |
41 |
38 |
35 |
31 |
40 |
38 |
36 |
34 |
- |
- |
- |
- |
- |
- |
10 |
43 |
40 |
36 |
32 |
42 |
40 |
37 |
35 |
- |
- |
- |
- |
- |
32 |
12 |
44 |
42 |
38 |
33 |
44 |
42 |
39 |
35 |
30 |
46 |
44 |
40 |
37 |
32 |
15 |
45 |
43 |
39 |
34 |
45 |
43 |
39 |
35 |
30 |
47 |
45 |
40 |
37 |
33 |
17 |
46 |
44 |
40 |
35 |
46 |
44 |
41 |
36 |
31 |
48 |
46 |
42 |
38 |
33 |
20 |
47 |
44 |
40 |
35 |
47 |
45 |
41 |
36 |
31 |
49 |
47 |
42 |
38 |
34 |
25 |
48 |
45 |
41 |
36 |
48 |
46 |
42 |
38 |
33 |
50 |
48 |
43 |
39 |
37 |
30 |
49 |
46 |
42 |
38 |
49 |
47 |
43 |
40 |
36 |
51 |
49 |
44 |
41 |
38 |
35 |
51 |
47 |
43 |
39 |
50 |
48 |
44 |
41 |
37 |
52 |
50 |
45 |
42 |
40 |
40 |
53 |
49 |
45 |
41 |
52 |
50 |
46 |
43 |
39 |
54 |
52 |
47 |
44 |
41 |
45 |
55 |
51 |
46 |
42 |
54 |
52 |
47 |
44 |
40 |
56 |
54 |
49 |
45 |
44 |
50 |
57 |
53 |
48 |
45 |
56 |
54 |
49 |
46 |
43 |
58 |
56 |
51 |
47 |
46 |
55 |
59 |
54 |
50 |
47 |
58 |
55 |
51 |
48 |
45 |
60 |
57 |
53 |
49 |
48 |
60 |
61 |
56 |
52 |
49 |
60 |
57 |
53 |
50 |
47 |
62 |
59 |
54 |
51 |
50 |
|
|
58 |
54 |
51 |
62 |
59 |
54 |
51 |
48 |
64 |
61 |
56 |
53 |
|
|
表2 单个轴承振动速度级允许极限值
轴承公称内径 |
V |
V1 |
V2 |
V3 |
Bore Diameter |
d mm |
|
低频带 |
中频带 |
高频带 |
低频带 |
中频带 |
高频带 |
低频带 |
中频带 |
高频带 |
低频带 |
中频带 |
高频带 |
|
Low Brand |
Medium Brand |
High Brand |
Low Brand |
Medium Brand |
High Brand |
Low Brand |
Medium Brand |
High Brand |
Low Brand |
Medium Brand |
High Brand |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5 |
110 |
72 |
60 |
90 |
60 |
50 |
58 |
36 |
30 |
35 |
21 |
18 |
6 |
110 |
72 |
60 |
90 |
60 |
50 |
58 |
36 |
30 |
35 |
21 |
18 |
7 |
130 |
96 |
80 |
110 |
80 |
65 |
72 |
48 |
40 |
44 |
28 |
24 |
8 |
130 |
96 |
80 |
110 |
80 |
65 |
72 |
48 |
40 |
44 |
28 |
24 |
9 |
130 |
96 |
80 |
110 |
80 |
65 |
72 |
48 |
40 |
44 |
28 |
24 |
|
|
|
|
|
|
|
|
|
|
|
|
|
10 |
160 |
120 |
100 |
140 |
100 |
85 |
90 |
60 |
50 |
55 |
35 |
30 |
12 |
160 |
120 |
100 |
140 |
100 |
85 |
90 |
60 |
50 |
55 |
35 |
30 |
15 |
210 |
150 |
120 |
180 |
130 |
100 |
110 |
78 |
60 |
65 |
46 |
35 |
17 |
210 |
150 |
120 |
180 |
130 |
100 |
110 |
78 |
60 |
65 |
46 |
35 |
20 |
260 |
190 |
150 |
220 |
160 |
125 |
130 |
100 |
75 |
80 |
60 |
45 |
|
|
|
|
|
|
|
|
|
|
|
|
|
22 |
260 |
190 |
150 |
220 |
160 |
125 |
130 |
100 |
75 |
80 |
60 |
45 |
25 |
260 |
190 |
150 |
220 |
160 |
125 |
130 |
100 |
75 |
80 |
60 |
45 |
28 |
260 |
190 |
150 |
220 |
160 |
125 |
130 |
100 |
75 |
80 |
60 |
45 |
30 |
300 |
240 |
190 |
250 |
200 |
160 |
150 |
120 |
100 |
90 |
75 |
60 |
32 |
300 |
240 |
190 |
250 |
200 |
160 |
150 |
120 |
100 |
90 |
75 |
60 |
35 |
300 |
240 |
190 |
250 |
200 |
160 |
150 |
120 |
100 |
90 |
75 |
60 |
|
|
|
|
|
|
|
|
|
|
|
|
|
40 |
360 |
300 |
260 |
300 |
250 |
220 |
180 |
150 |
130 |
110 |
90 |
80 |
|