有關滾動軸承主要尺寸的公差,公差值及旋轉精度,在GB及ISO標準中均有所規規定。軸承精度等級除普通精度PO級之外,有P6,P5,P4級,精度等級依次提高。這些精度均按ISO規格。表1,2列我公司生產PO級陶瓷軸承及不銹鋼軸承(不包括塑料軸承)相應公差及公差值,有關P6,P5,P4級公差請與本公司聯系。
塑料軸承因加工精度及本身尺寸穩定性限制(熱膨脹系數遠大于陶瓷及金屬及金屬材質)那低于PO及公差生產。表3列出我公司聲廠的塑料軸承相應的公差值。
陶瓷軸承和不銹鋼軸承公差/Telerance of ceramic stainless bearings
|
? |
表1 PO級公差內圈(適用陶瓷軸承和不銹鋼軸承) |
? |
? |
Table 1 PO grode tolerance of inner ring(For ceramic and stainless bearings) |
? |
? |
d(mm)
|
dmp
|
V
|
V
|
K
|
B
|
V
|
直徑系列
|
9
|
0.1
|
2,3,4
|
全部
|
正常
|
修正
|
超過
|
到
|
上偏差
|
下偏差
|
max
|
max
|
max
|
上偏差
|
下偏差
|
?
|
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 |
|
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 |
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 |
|
? |
? |
注:1>包括0.6在內 |
Note:1> including 0.6 |
? |
? |
? |
? |
2>直徑系列7和8無規定值 |
2> Diameter series 7 and 8 no regular cost |
表2 PO級公差外圈(適用陶瓷軸承和不銹鋼軸承) |
|
|
|
|
Table2 PO grade tolerance of outer ring(For ceramic and stainless bearings) |
|
|
|
D(mm)
|
D
|
V
|
V
|
K
|
C C
|
V V
|
開形軸承
|
閉形軸承
|
直徑軸承
|
9
|
0,1
|
2,3,4
|
2,3,4
|
超過
|
到
|
上偏差
|
下偏差
|
max
|
?
|
max
|
max
|
上偏差
|
下偏差
|
2.5
|
60
|
0
|
-8
|
10
|
8
|
6
|
10
|
6
|
15
|
與同一軸承內圈的
|
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
|
250
|
180
|
0
|
-25
|
31
|
31
|
19
|
38
|
19
|
45
|
180
|
250
|
0
|
-30
|
38
|
38
|
23
|
?
|
23
|
50
|
250
|
315
|
0
|
-35
|
44
|
44
|
26
|
?
|
26
|
60
|
|
|
|
注:1>包括2.5在內 |
Note:1>Including 2.5 |
|
|
|
2>直徑系列T和8無規定值 |
2>Diameter series 7 and 8 no regular cost |
|
|
|
3>直徑系列9.0和1無規定值 |
3>Diameter series 9,0,1 no regular cost |
|
|
|
4>適用于內外止動環安裝前或拆卸后 |
4>Surtable fof inside and outside brake ring before installation or after discharge |
|
|
? |
|
|
|
塑料軸承公差/Tolerance of plastic bearings |
|
|
|
|
表3 塑料軸承的內外圈公差 |
|
|
|
|
|
Table3 Inner and outerring tolerance(For plastic bearings) |
|
|
|
|
材料 |
外徑 |
內徑 |
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 |
|
|
? |