DZR375-4000-625-E2EHydraulic rod seal, with primary and secondary sealing rings and integrated anti-extrusion ring
These hydraulic rod seals consist of a nitrile rubber primary sealing ring, a LUBRITHANE thermoplastic polyurethane secondary sealing ring and an integrated triangular polyamide anti-extrusion ring. The nitrile rubber primary lips provide improved long-term sealing performance and a greater capability to track larger radial deflections between the rod and the head.
Dimensions
| d |
101.6 mm
|
Rod diameter |
|---|---|---|
| D |
120.65 mm
|
Housing groove diameter |
| L |
17.46 mm
|
Housing groove width |
| S |
9.53 mm
|
Radial depth |
| R |
max. 0.76 mm
|
Groove radius |
| C |
min. 12.7 mm
|
Lead-in chamfer length |
| tol d |
0 mm
|
Upper limit deviation |
|---|---|---|
|
-0.05 mm
|
Lower limit deviation | |
| tol D |
0.13 mm
|
Upper limit deviation |
|
0 mm
|
Lower limit deviation | |
| tol L |
0.254 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 |
1.12 mm
|
| Extrusion gap at 250 bar | e |
0.71 mm
|
| Extrusion gap at 400 bar | e |
0.43 mm
|
| Extrusion gap at 690 bar | e |
0.25 mm
|
Pressure and speed
| Pressure |
max. 690 bar
|
| Speed |
max. 1 m/s
|
Operating temperature
| T6 |
120 °C
|
Extreme upper temperature limit |
|---|---|---|
| T5 |
110 °C
|
Reduced performance upper temperature limit |
| T4 |
100 °C
|
Upper operating temperature limit |
| T3 |
-50 °C
|
Lower operating temperature limit |
| T2 |
-55 °C
|
Reduced performance lower temperature limit |
| T1 |
-60 °C
|
Extreme lower temperature limit |
|
Maximum values of application parameters (e.g. pressure, speed, temperature) should not be applied continuously nor simultaneously.
|
||
Materials
| Primary sealing element |
Nitrile Rubber (NBR A-8504)
|
| Additional element |
Polyurethane (TPU U-1003)
|
| Additional element |
Polyamide (PA P-2056)
|
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