Rod Compact Seal R25
DESCRIPTION
U-Seal R25 with rubber energized sealing lips and base fabric-reinforced, exibit low friction and good extrusion resistance. Excelent sealing effect and wide operating temperature range.
APPLICATION
Standard hydraulic cylinders.
Machine tools
Spindle seals
Telescopic cylinders
| Standard material | ||||
|---|---|---|---|---|
| Material Set Code | SN260 | SF140 | ||
| Material base | NBR 70 Shore A | FPM 70 Shore A | ||
| Fabric | Cotton | Cotton | ||
Advantages of the material:
For very low temperature applications up to -60 C, or excellent medium-rubber compatybility in special applications a few materials are recommended and available on request
| Pressure, Speed | |
|---|---|
| Working pressure, p | 25 Mpa |
| Running speed v | 0,5 m/s |
| Medium, Working Temperature | ||
|---|---|---|
| Material Set Code | SN260 | SF140 |
| Hydraulic oils: HL | -30 to 100˚C | -15 to +150˚C |
| HFA, HFB fluids | +5 to +60˚C | – |
| HFC fluids | -30 to +60˚C | – |
| HFD fluids | – | -15 to +150˚C |
| Water | +5 to +90˚C | – |
| Mineral greases | -30 to +100˚C | -15 to +150˚C |
| Tolerances | ||
|---|---|---|
| Ød | Clearance fit, emax | ØD |
| … 80 | H9/f8 | H11 |
| > 80 … 120 | H8/f8 | H11 |
| > 120 … 180 | H8/f7 | H11 |
| > 500 … 630 | H8/f7 | H10 |
| > 630 … 800 | H8/f7 | H10 |
Read More
*Contact area Mr = 50% to 90% at cutting depth c=Rz/2 and reference line Cref=0%
Surface quality*
Surface roughness
Ra
Rmax
Sliding surfaces
0.05 .. 0,3μm
≤ 2,5 μm
Groove base
≤ 1,6 μm
≤ 6,3 μm
Groove flanks
≤ 3 μm
≤ 15 μm
Ød
ØD
H
L