LCP-40X30X8-ND1Four-piece capped piston T-seal with patented SKF locking anti-extrusion rings and PTFE cap
LCP seals are double-acting piston seals with a PTFE slide ring, with polyamide anti-extrusion rings on both sides, and a T-shaped nitrile rubber energizer. The anti-extrusion rings provide improved high pressure performance by reducing the likelihood of gap extrusion. The anti-extrusion rings are split for easy installation and their locking design reduces assembly issues. The PTFE cap reduces friction and provides longer seal life.
Dimensions
| D |
40 mm
|
Cylinder bore diameter |
|---|---|---|
| d |
30 mm
|
Piston groove diameter |
| L |
8 mm
|
Piston groove width |
| S |
5 mm
|
Radial depth |
| R |
max. 0.5 mm
|
Groove radius |
| C |
min. 4 mm
|
Lead-in chamfer length |
| tol D |
0.062 mm
|
Upper limit deviation |
|---|---|---|
|
0 mm
|
Lower limit deviation | |
|
H9
|
Tolerance class for cylinder bore diameter | |
| tol d |
0 mm
|
Upper limit deviation |
|
-0.052 mm
|
Lower limit deviation | |
|
h9
|
Tolerance class for piston groove diameter | |
| tol L |
0.2 mm
|
Upper limit deviation |
|
0 mm
|
Lower limit deviation |
Maximum extrusion gap
| Reference temperature for extrusion gap |
80 °C
|
|
| Extrusion gap at 160 bar | e |
0.7 mm
|
| Extrusion gap at 250 bar | e |
0.45 mm
|
| Extrusion gap at 400 bar | e |
0.25 mm
|
| Extrusion gap at 690 bar | e |
0.15 mm
|
Pressure and speed
| Pressure |
max. 690 bar
|
| Speed |
max. 1.5 m/s
|
Operating temperature
| T6 |
max. 130 °C
|
Extreme upper temperature limit |
|---|---|---|
| T5 |
max. 120 °C
|
Reduced performance upper temperature limit |
| T4 |
max. 110 °C
|
Upper operating temperature limit |
| T3 |
min. -20 °C
|
Lower operating temperature limit |
| T2 |
min. -30 °C
|
Reduced performance lower temperature limit |
| T1 |
min. -40 °C
|
Extreme lower temperature limit |
|
Maximum values of application parameters (e.g. pressure, speed, temperature, e-gap) should not be applied continuously nor simultaneously.
|
||
Materials
| Primary sealing element |
Polytetrafluoroethylene (PTFE 741)
|
| Additional element |
Nitrile Rubber (NBR A-8501)
|
| Additional element |
Polyamide (PA P-2506)
|
Compliance with standard
| In accordance with |
ISO 5597
|
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