Guide rings
FR piston guide rings
Heavy duty conditions. Installed in the same housing as for FT and Neuflon-ptfe tape
| S Thickness |
F groove diameter |
L groove width |
G piston-cylinder clearence |
| j8 - h8 | H11 | max S x 0.4 | |
| 2.5 | A - 5 | 6.3 | choice depends on the seal adopted max S x 0.4 |
| 2.5 | 8.1 | ||
| 2.5 | 9.7 | ||
| 2.5 | 15 | ||
| 2.5 | 20 | ||
| 2.5 | 25 | ||
| 2.5 | 30 |
| Coding example | |
| Product: FR Bore: 100 Groove diameter: 95 Groove width: 15 |
FR 100 x 95 x 15 |
materials
| CHARACTERISTIC | SPECIFICATION | UNIT | VALUE |
| Color | brown-yellow | ||
| SPECIFIC LOAD Qs T<100°C | N.mm-2 | 50 | |
| Compression resistance | D695-54 | N.mm-2 | 150 |
| Compression modulus | D695-54 | N.mm-2 | 6000 |
| Hardness | D2240-74 | Rockwell F | 60 |
| Friction coefficient | 0.25 | ||
| Max. Speed | m/sec | 1 | |
| Thermal expansion coefficient | D696-70 | 10-6¨°C-1 | 20 |
| Continual operational Temperature | °C | 120 | |
| Peak temperature | °C | 150 | |
| Flammability | D635-68 | self extinguisching |