有关滚动轴承主要尺寸的公差,公差值及旋转精度,在GB及ISO标准中均有所规规定。轴承精度等级除普通精度PO级之外,有P6,P5,P4级,精度等级依次提高。这些精度均按ISO规格。表1,2列我公司生产PO级陶瓷轴承及不锈钢轴承(不包括塑料轴承)相应公差及公差值,有关P6,P5,P4级公差请与本公司联系。
塑料轴承因加工精度及本身尺寸稳定性限制(热膨胀系数远大于陶瓷及金属及金属材质)那低于PO及公差生产。表3列出我公司声厂的塑料轴承相应的公差值。
陶瓷轴承和不锈钢轴承公差/Telerance of ceramic stainless bearings
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表1 PO级公差内圈(适用陶瓷轴承和不锈钢轴承) |
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Table 1 PO grode tolerance of inner ring(For ceramic and stainless bearings) |
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d(mm)
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dmp
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V
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V
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K
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B
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V
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直径系列
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9
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0.1
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2,3,4
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全部
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正常
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修正
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超过
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到
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上偏差
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下偏差
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max
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max
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max
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上偏差
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下偏差
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0.6 |
2.5 |
0 |
-8 |
10 |
8 |
6 |
6 |
10 |
0 |
-40 |
-250 |
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 |
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20 |
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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 |
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80 |
120 |
0 |
-20 |
21 |
21 |
15 |
15 |
25 |
0 |
-120 |
-380 |
25 |
120 |
180 |
0 |
-25 |
35 |
35 |
19 |
19 |
30 |
0 |
-250 |
-500 |
30 |
180 |
250 |
0 |
-30 |
38 |
38 |
23 |
23 |
40 |
0 |
-300 |
-500 |
30 |
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注:1>包括0.6在内 |
Note:1> including 0.6 |
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2>直径系列7和8无规定值 |
2> Diameter series 7 and 8 no regular cost |
表2 PO级公差外圈(适用陶瓷轴承和不锈钢轴承) |
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Table2 PO grade tolerance of outer ring(For ceramic and stainless bearings) |
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D(mm)
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D
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V
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V
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K
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C C
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V V
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开形轴承
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闭形轴承
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直径轴承
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9
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0,1
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2,3,4
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2,3,4
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超过
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到
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上偏差
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下偏差
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max
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max
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max
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上偏差
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下偏差
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2.5
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60
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0
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-8
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10
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8
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6
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10
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6
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15
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与同一轴承内圈的
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6
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18
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0
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-8
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10
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8
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6
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10
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6
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15
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18
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30
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0
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-9
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12
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9
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7
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12
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7
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15
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30
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50
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0
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-11
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14
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11
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8
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16
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8
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20
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50
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80
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0
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-13
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16
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13
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10
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20
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10
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25
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80
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120
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0
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-15
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19
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19
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11
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26
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11
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35
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120
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150
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0
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-18
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23
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23
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14
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30
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14
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40
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250
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180
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0
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-25
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31
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31
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19
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38
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19
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45
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180
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250
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0
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-30
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38
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38
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23
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23
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50
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250
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315
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0
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-35
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44
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44
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26
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26
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60
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注:1>包括2.5在内 |
Note:1>Including 2.5 |
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2>直径系列T和8无规定值 |
2>Diameter series 7 and 8 no regular cost |
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3>直径系列9.0和1无规定值 |
3>Diameter series 9,0,1 no regular cost |
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4>适用于内外止动环安装前或拆卸后 |
4>Surtable fof inside and outside brake ring before installation or after discharge |
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塑料轴承公差/Tolerance of plastic bearings |
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表3 塑料轴承的内外圈公差 |
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Table3 Inner and outerring tolerance(For plastic bearings) |
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材料 |
外径 |
内径 |
高度 |
PEEK |
0/-0.05 |
+0.05/0 |
0/-0.12 |
POM |
0/-0.1 |
+0.1/0 |
0/-0.12 |
PP |
0/-0.1 |
+0.1/0 |
0/-0.12 |
PVDF |
0/-0.1 |
+0.1/0 |
0/-0.12 |
PE |
0/-0.1 |
+0.1/0 |
0/-0.12 |
UPE |
0/-0.2 |
+0.2/0 |
0/-0.2 |
PTFE |
0/-0.2 |
0.2/0 |
0/-0.2 |
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