金属外壳之油封
一般均作表面研磨以达密封之效果。
橡胶外壳油封
尤其使用在铝、铜及陶瓷等较脆弱之配套孔其效果更佳。
备注:1、SB/TB/VB型之油封依据客人之订单生产。
2、TC油封(NBR70)有现货供应。
骨架油封尺寸标示及公差标准
ISO/R286 H8
|
GB9877.1-88
|
轴径及孔径之名义尺寸
|
油封配套孔径之公差
|
油封配套轴径之公差
|
配合轴径大于至
|
主唇口公差
|
副唇口公差
|
6.00 TO 10.00
|
-0.000/+0.020
|
+0.000/-0.090
|
5-30
|
-0.5/-1.3
|
-0.15/-0.45
|
10.01 TO 18.00
|
-0.000/+0.027
|
+0.000/-0.110
|
30-60
|
-0.8/-1.7
|
-2.0/-0.60
|
18.01 TO 30.00
|
-0.000/+0.033
|
+0.000/-0.130
|
60-80
|
-1.0/-2.0
|
-0.25/-0.75
|
30.01 TO 50.00
|
-0.000/+0.039
|
+0.000/-0.160
|
80-130
|
-1.2/-2.6
|
-3.0/-0.90
|
50.01 TO 80.00
|
-0.000/+0.046
|
+0.000/-0.190
|
130-250
|
-1.5/-3.3
|
-0.40/-1.05
|
80.01 TO 120.00
|
-0.000/+0.054
|
+0.000/-0.220
|
250-400
|
-2.0/-4.0
|
-0.50/-1.30
|
120.01 TO 180.00
|
-0.000/+0.063
|
+0.000/-0.250
|
|
|
|
180.01 TO 250.00
|
-0.000/+0.072
|
+0.000/-0.290
|
|
|
|
250.01 TO 315.00
|
-0.000/+0.081
|
+0.000/-0.320
|
|
|
|
315.01 TO 400.00
|
-0.000/+0.089
|
+0.000/-0.360
|
|
|
|
400.01 TO 500.00
|
-0.000/+0.097
|
+0.000/-0.400
|
|
|
|
GB13871-92
|
尺寸(外径)大于至
|
外露骨架型(外径公差)
|
内包骨架型(外径公差)
|
外露骨架型(圆度公差)
|
内包骨架型(圆度公差)
|
高度公差
|
≤10
|
≥10
|
50以下(含50)
|
+0.20/+0.08
|
+0.30/+0.15
|
0.18
|
0.25
|
±0.3
|
±0.4
|
50-80
|
+0.23/+0.09
|
+0.35/+0.20
|
0.25
|
0.35
|
±0.3
|
±0.4
|
80-120
|
+0.25/+0.10
|
+0.35(0.45)/+0.2
|
0.30
|
0.50
|
±0.3
|
±0.4
|
120-180
|
+0.28/+0.12
|
+0.45(0.50)/+0.25
|
0.40
|
0.65
|
±0.3
|
±0.4
|
180-300
|
+0.35/+0.15
|
+0.45(0.55)/+0.25
|
外径的0.25%
|
0.80
|
±0.3
|
±0.4
|
300-440
|
+0.45/+0.20
|
+0.55(0.65)/+0.30
|
外径的0.25%,
但不超过0.9
|
1.00
|
±0.3
|
±0.4
|