Pairing Reference Table
| Pin Series | Bushing Match | Fit Class | Notes |
|---|---|---|---|
| EGH (Inlay Type) | EGH Bushing | H7/g6 | Standard pairing for most molds |
| EGHC (Striking Type) | EGHC Bushing | H7/g6 | For precise rotational positioning |
| Oil-Free EGH | Oil-Free EGH Bushing | H7/g6 | Cleanroom applications |
| Ball-Bearing Set | Integrated (pre-assembled) | Precision matched | Do not disassemble |
Why Cross-Matching Fails
EGH and EGHC series have different shoulder heights, head diameters, and counterbore depths. Cross-matching causes incorrect seating depth, which mispositions the guide shaft relative to the ejector plate bore.