Material | Internal hardness | Heat Treatment |
20cr | HRC60° ±2° | Piercing Carbon |
Size | d | d1 | d2 | d3 | D | H | ||
Size | Tolerances | Size | Tolerances | |||||
12 | 12 |
+0.02 +0.03 |
20 |
+0.01 +0.02 |
-0.02 -0.03 |
-0.03 -0.05 |
25 | 6 |
16 | 16 | 25 | 30 | |||||
20 | 20 |
+0.025 +0.035 |
30 |
+0.015 +0.025 |
35 | 8 | ||
25 | 25 | 35 | 40 | |||||
30 | 30 | 42 | 47 | 10 | ||||
35 | 35 | 48 | 53 | |||||
40 | 40 |
+0.03 +0.04 |
55 |
+0.02 +0.03 |
60 | |||
45 | 45 | 60 | 66 | |||||
50 | 50 | 70 | 76 | 12 | ||||
60 | 60 | 80 | 85 | 15 |
L | 26 | 28 | 33 | 36 | 43 | 48 | 53 | 58 | 63 | 68 | 73 | 78 |
L3 | 14 | 19 | 24 | 29 | 34 | 39 |