Purpose:
Fitting ring positioning.
2. Requirements
- hole position Tolerance: The copper plate silver stalks high injection holes.
- Tolerance in size: For the mounting ring positioning on not too tight or too loose. And when fitted to ensure the excess to ring positioning is inserted firmly. But the surplus is too large to avoid spoiling ring positioning.
- Example: Select o40 positioning ring (mm) select the exact level of losses is the distribution level domain 5 tolerances P, infer actual hole diameter is 39 979 ÷ 39 985 (mm)
- processing method: milling milling coarse + fine.
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