Example for ordering: SCHAAF-article-No. A 5400.21
1. The thread size must be covered by the type in consideration, e. g. TR 280 x 4 RH requires at least A 5400.19.
2. The Ring Piston must match the counterface. If, in the example of TR 280 x 4 RH, the counterface has an ID of 355 mm, the bigger type of Nut is requuired. i. e. A 5400.21
3. Please check all relevant dimensions. If they do not fit, ask SCHAAF's consulting service