HOME > MOTION GUIDANCE > MOTION GUIDEWAYS > PRECISION, PRELOAD & ACCURACY
• Preload Class
|
CLASS |
SYMBOL |
PRELOAD (KgF) |
|
VERY LIGHT PRELOAD |
Z0 |
0 |
|
LIGHT PRELOAD |
Z1 |
0.02Co |
|
MEDIUM PRELOAD |
Z2 |
0.05Co |
|
HEAVY PRELOAD |
Z3 |
0.08Co |
• Accuracy Class (see dwg above)
| ITEM / CLASS |
NORMAL |
HIGH |
PRECISION |
SUPER PRECISION |
ULTRA PRECISION |
| Dim H Tolerance |
+/- 0.15 |
+/-0.05 |
0 to -0.04 |
0 to -0.02 |
0 to -0.01 |
| Dim N Tolerance |
+/-0.10 |
+/-0.05 |
0 to -0.05 |
0 to -0.03 |
0 to -0.015 |
| Dim variation of H |
0.03 |
0.015 |
0.007 |
0.005 |
0.003 |
| Dim variation of N |
0.03 |
0.02 |
0.01 |
0.007 |
0.003 |
| Running parallelism on Surface C to Surface A | |||||
| Running parallelism on Surface D to Surface B |