| 輪外徑 |
允許差值 |
| 任意兩相臨齒間 |
90弧內約允差 |
| ≤25.40 0 |
0.03 |
0.05 |
| >25.40-50.80 |
0.03 |
0.08 |
| >50.80-101.60 |
0.03 |
0.10 |
| >101.60-177.80 |
0.03 |
0.13 |
| >177.80-304.80 |
0.03 |
0.15 |
| >304.80-508.00 |
0.03 |
0.18 |
| >508.00 |
0.03 |
0.20 |
|
| 輪外徑 |
允許偏差 |
| ≤25.4 |
+0.05
0 |
| 25.40-50.80 |
+0.08
0 |
| 50.80-101.60 |
+0.10
0 |
| 101.60-177.80 |
+0.13
0 |
| 177.80-304.80 |
+0.15
0 |
| 304.80-508.00 |
+0.18
0 |
| 508.00 |
+0.20
0 |
|
