RSI ROTARY SEAL
The HUNGER rotary seal type RSI consists of a highest wear-resistant PTFE-compound slide ring and three
(double-acting) or two (single-acting) O-Rings made of Fluoro Rubber Monomer, which provide the pretension
of the sealing lips.
Additional axial fixing of the seal ensures that dynamic movement takes place at the internal diameter.
Depending on the specifications and operating conditions it is recommended to have the running surface hardened to approx. 56 HRC or hard chromium plated.
| Materials | |||
| O-Rings | Slide Ring | ||
| Standard | FKM | PTFE-PI | |
| Alternative (on request) | FKM-HW, NBR, NBR-TT, H-NBR, EPDM | PTFE-Compounds | |
| Application Range | |||
| Pressure [bar] | Temperature Range [°C] | Sliding Speed [m/s] | |
| Static | 400 | -15 … +200 | |
| Dynamic | 360 | -15 … +200 | 0.5 |
| Design Hints Surface Finish | |||
| Surface Quality | Surface Hardness | ||
| Ra [µm] | Rt [µm] | [HRC] | |
| Sliding Surfaces | 0.1 – 0.3 | ≤ 1.5 | > 40 |
| Groove Base | 0.8 | ≤ 6.3 | |
| Groove Sides | 3.2 | ≤ 15 | |
SIZE
| d | D | b | b1 | e | Ref. Number |
| 40 | 50 | 5 | 5 | 3 | 64922 |
| 48 | 58 | 5 | 5 | 3 | 64923 |
| 50 | 60 | 5 | 5 | 3 | 64996 |
| 50 | 60 | 5 | 5 | 3 | 64995 |
| 55 | 65 | 5 | 5 | 3 | 65083 |
| 80 | 95 | 7,5 | 7,5 | 4 | 64973 |
| 90 | 105 | 7,5 | 7,5 | 4 | 64956 |
| 100 | 115 | 7,5 | 7,5 | 4 | 75772 |
| 125 | 140 | 7,5 | 7,5 | 4 | 65098 |
| 290 | 310 | 10 | 10 | 5 | 65007 |