Straight Rules
JB/T7978-1999
用直线度平面度测量应用。
For inspecting the straightness and flantness.
| 编号 No |
规格 Dimension mm |
工作面直线度公差 Beeline tolerance of working surface (μm) |
上下工作面平行度公差 parallelism tolerance between the upper and lower measuring surfaces (μm) |
侧面对工作面的垂直度 perpendicularity between side & measuring surface (μm) |
|||
| 精度00 Grade00 |
精度0 Grade0 |
精度00 Grade00 |
精度0 Grade0 |
精度00 Grade00 |
精度0 Grade0 |
||
| 112-1001 112-1002 112-1003 112-1004 112-1005 |
400×60×25 630×100×35 1000×160×50 1600×250×80 2000×300×100 |
1.6 2.1 3.0 4.4 5.4 |
1.6 3.5 5.0 7.4 9.0 |
2.4 3.2 4.5 6.6 8.1 |
3.9 5.3 7.5 11.1 13.5 |
8 10.5 15 22 27 |
13 18 25 37 48 |