Hallite pneumatic seal 661
Technical details
| OPERATING CONDITIONS | METRIC | INCH |
| Maximum Speed | 1.0 m/sec | 3.0 ft/sec |
| Temperature Range | -45°C +80°C | -50°F +180°F |
| Maximum Pressure | 16 bar | 230 psi |
| SURFACE ROUGHNESS | µmRa | µmRz | µmRt | µinRa | µinRz | µinRt |
| Dynamic Sealing Face Ød₁ | 0.1 – 0.4 | 1.6 max | 4 max | 4 – 16 | 63 max | 157 max |
| Static Sealing Face ØD₁ | 1.6 max | 6.3 max | 10 max | 63 max | 250 max | 394 max |
| Static Housing Faces L₁ | 3.2 max | 10 max | 16 max | 125 max | 394 max | 630 max |
| CHAMFERS & RADII | ||||
| Groove Section ≤ S mm | 3.00 | 4.00 | 5.00 | 7.00 |
| Max Rad r mm | 3.00 | 4.00 | 4.00 | 5.00 |
| Max Fillet Rad r₁ mm | 0.40 | 0.40 | 0.40 | 0.40 |
| Max Fillet Rad r₂ mm | 0.20 | 0.20 | 0.20 | 0.20 |
| Groove Section ≤ S in | 0.157 | 0.197 | ||
| Max Rad r in | 0.118 | 0.157 | ||
| Max Fillet Rad r₁ in | 0.016 | 0.016 | ||
| Max Fillet Rad r₂ in | 0.008 | 0.008 |
| TOLERANCES | Ød₁ | ØD₁ | ØD₂ | ØD₃ | L₁ |
| mm | h10 | H11 | H11 | H11 | +0.20 -0.20 |
| in | h10 | H11 | H11 | H11 | +0.016 -0 |
| METRIC | ||||||
| Part no. | Ød2 | Ød1 | ØD1 | ØD2 | ØD3 | L1 |
| 4574800 | 7 | 10 | 18 | 10.5 | 12 | 4.8 |
| 4558500 | 13 | 16 | 24 | 16.5 | 18 | 4.8 |
| 4574900 | 18 | 22 | 30 | 22.5 | 24 | 4.8 |
| 4574400 | 24 | 28 | 38 | 28.6 | 30 | 6 |
| 4591400 | 28 | 32 | 42 | 32.6 | 34 | 6 |
| 4574500 | 34 | 38 | 48 | 38.6 | 40 | 6 |
| 4558600 | 46 | 50 | 60 | 50.6 | 52 | 6 |
| 4574600 | 56 | 60 | 74 | 60.6 | 63 | 8.4 |
| 4576000 | 66 | 70 | 84 | 70.6 | 73 | 8.4 |
| 4574700 | 76 | 80 | 94 | 80.6 | 83 | 8.4 |
| 4582700 | 96 | 100 | 114 | 100.6 | 103 | 8.4 |
| INCH | ||||||
| Part no. | Ød2 | Ød1 | ØD1 | ØD2 | ØD3 | L1 |
| 8907300 | 0.719 | 0.880 | 1.195 | 0.9 | 0.959 | 0.189 |
| 8907400 | 1.094 | 1.253 | 1.568 | 1.273 | 1.332 | 0.189 |
| 8907500 | 1.469 | 1.624 | 1.939 | 1.644 | 1.703 | 0.189 |