| Class 125 | ||||
|---|---|---|---|---|
| Nom. Pipe Size | Inner Ring I.D. | Winding | Centering Ring Outside Dia. | |
| I.D. | O.D. | |||
| 22 | 22 | 22.750 | 24.000 | 26.000 |
| 26 | 26 | 26.500 | 27.750 | 30.500 |
| 28 | 28 | 28.500 | 29.750 | 32.750 |
| 30 | 30 | 30.500 | 31.750 | 34.750 |
| 32 | 32 | 32.500 | 33.875 | 37.000 |
| 34 | 34 | 34.500 | 35.875 | 39.000 |
| 36 | 36 | 36.500 | 38.125 | 41.250 |
| 38 | 38 | 38.500 | 40.125 | 43.750 |
| 40 | 40 | 40.500 | 42.125 | 45.750 |
| 42 | 42 | 42.500 | 44.250 | 48.000 |
| 44 | 44 | 44.500 | 46.375 | 50.250 |
| 46 | 46 | 46.500 | 48.375 | 52.250 |
| 48 | 48 | 48.500 | 50.375 | 54.500 |
| 50 | 50 | 50.500 | 52.500 | 56.500 |
| 52 | 52 | 52.500 | 54.500 | 58.750 |
| 54 | 54 | 54.500 | 56.500 | 61.000 |
| 60 | 60 | 60.500 | 62.500 | 67.500 |
| Class 175 | ||||
|---|---|---|---|---|
| Nom. Pipe Size | Inner Ring I.D. | Winding | Centering Ring Outside Dia. | |
| I.D. | O.D. | |||
| 26 | 26 | 26.500 | 27.750 | 29.125 |
| 28 | 28 | 28.500 | 29.750 | 31.125 |
| 30 | 30 | 30.500 | 31.750 | 33.375 |
| 32 | 32 | 32.500 | 33.750 | 35.375 |
| 34 | 34 | 34.500 | 35.875 | 37.500 |
| 36 | 36 | 36.500 | 37.875 | 39.500 |
| 38 | 38 | 38.500 | 39.875 | 41.500 |
| 40 | 40 | 40.500 | 42.000 | 43.500 |
| 42 | 42 | 42.500 | 44.000 | 45.875 |
| 44 | 44 | 44.500 | 46.000 | 47.875 |
| 46 | 46 | 46.500 | 48.000 | 49.875 |
| 48 | 48 | 48.500 | 50.125 | 51.875 |
| 50 | 50 | 50.500 | 52.250 | 53.875 |
| 52 | 52 | 52.500 | 54.375 | 56.125 |
| 54 | 54 | 54.500 | 56.375 | 58.125 |
| 60 | 60 | 60.500 | 62.500 | 64.125 |
| Class 250 | ||||
|---|---|---|---|---|
| Nom. Pipe Size | Inner Ring I.D. | Winding | Centering Ring Outside Dia. | |
| I.D. | O.D. | |||
| 26 | 26 | 26.500 | 27.750 | 32.750 |
| 28 | 28 | 28.500 | 29.750 | 35.250 |
| 30 | 30 | 30.500 | 31.750 | 37.500 |
| 32 | 32 | 32.500 | 33.875 | 39.750 |
| 34 | 34 | 34.500 | 35.875 | 41.750 |
| 36 | 36 | 36.500 | 38.125 | 44.000 |
| 38 | 38 | 38.500 | 40.125 | 46.000 |
| 40 | 40 | 40.500 | 42.125 | 48.250 |
| 42 | 42 | 42.500 | 44.250 | 50.750 |
| 44 | 44 | 44.500 | 46.375 | 53.000 |
| 46 | 46 | 46.500 | 48.375 | 52.250 |
| 48 | 48 | 48.500 | 50.375 | 58.750 |
| Class 350 | ||||
|---|---|---|---|---|
| Nom. Pipe Size | Inner Ring I.D. | Winding | Centering Ring Outside Dia. | |
| I.D. | O.D. | |||
| 26 | 26 | 26.500 | 27.750 | 29.625 |
| 28 | 28 | 28.500 | 29.750 | 31.625 |
| 30 | 30 | 30.500 | 31.750 | 33.875 |
| 32 | 32 | 32.500 | 33.875 | 35.875 |
| 34 | 34 | 34.500 | 35.875 | 37.875 |
| 36 | 36 | 36.500 | 38.125 | 40.375 |
| 38 | 38 | 38.500 | 40.125 | 42.375 |
| 40 | 40 | 40.500 | 42.125 | 44.375 |
| 42 | 42 | 42.500 | 44.250 | 46.625 |
| 44 | 44 | 44.500 | 46.375 | 49.000 |
| 46 | 46 | 46.500 | 48.375 | 51.000 |
| 48 | 48 | 48.500 | 50.375 | 53.000 |
| 52 | 52 | 52.500 | 54.250 | 57.375 |
| 54 | 54 | 54.500 | 56.500 | 59.375 |
| 60 | 60 | 60.500 | 62.500 | 65.375 |
| 66 | 66 | 66.500 | 68.500 | 72.500 |