Highlight:
D155A-2A piston seal ring
, D355A-5 backup ring
, 07155-02250 piston seal
1. Quick Details of seal 07155-02250:
| Part NO. |
07155-02250 |
| Machine |
Grader |
| Size |
OEM |
| Material |
Poplar fiber reinforced HNBR elastomer |
| Type |
RING SEAL |
2. 07155-02250 parts on group :
| NO. |
PART NO. |
PRAT NAME |
QTY |
| 1 |
195-63-53041 |
CYLINDER |
1 |
| 2 |
707-76-75060 |
BUSHING |
1 |
| 3 |
707-27-22291 |
HEAD,CYLINDER |
1 |
| 4 |
07177-01135 |
BUSHING |
1 |
| 5 |
707-51-11110 |
PACKING,ROD |
1 |
| 6 |
198-63-94170 |
SEAL,DUST |
1 |
| 7 |
07179-00135 |
RING,SNAP |
1 |
| 8 |
07000-15220 |
O-RING |
1 |
| 9 |
07001-05220 |
RING,BACK-UP |
1 |
| 10 |
01010-62795 |
BOLT |
6 |
| 11 |
01011-62705 |
BOLT |
2 |
| 12 |
01602-02783 |
WASHER,SPRING |
8 |
| 13 |
195-63-53120 |
ROD,PISTON |
1 |
| 14 |
195-71-51260 |
BUSHING |
1 |
| 15 |
707-36-22051 |
PISTON |
1 |
| 16 |
07000-12090 |
O-RING |
1 |
| 17 |
07001-02090 |
RING,BACK-UP |
2 |
| 18 |
707-44-22080 |
RING,PISTON |
1 |
| 19 |
07155-02250 |
RING,WEAR |
1 |
| 20 |
707-40-22150 |
SPACER |
2 |
| 21 |
01010-31455 |
BOLT |
6 |
3. 07155-02250 picture:
4. Service part number :
| PART NO. |
PART NO. |
Part NO. |
| 707-98-26110 |
707-98-37570 |
707-98-60100 |
| 707-98-37500 |
707-98-58230 |
707-98-58230 |
| 707-98-37510 |
707-98-58240 |
707-98-58240 |
| 707-98-37570 |
707-98-60100 |
707-98-60100 |
| 707-98-25820 |
707-51-45640 |
707-51-85640 |
| 707-98-25830 |
707-51-45650 |
707-51-85650 |
| 707-98-25870 |
707-51-50640 |
707-51-90630 |
| 707-98-25910 |
707-51-55630 |
707-51-90640 |
| 707-98-25920 |
707-98-36740 |
707-51-95630 |
| 707-98-25970 |
707-98-37110 |
707-51-95640 |
| 707-98-25980 |
707-98-37130 |
707-51-95650 |
| 707-98-26600 |
707-98-38551 |
707-98-64420 |
5. FAQ
Q: What raw materials make up this piston seal ring assembly?
A: The primary sealing ring adopts poplar fiber reinforced HNBR elastomer, equipped with silicon filled PTFE sliding ring and rigid modified POM back-up ring for matching assembly.
Q: What color distinctions can we observe among these sealing components?
A: The main piston seal ring is low-gloss black, the PTFE sliding ring is milky white, and the back-up ring presents light ash tone.
Q: Can this piston seal ring be applied to hydraulic cylinders of all engineering machinery?
A: It is specially designed for grader tilt cylinders. It cannot be mounted on wheel loader steering cylinders or bulldozer push cylinders of different dimensions.
Q: Which construction scenarios suit this piston seal ring best?
A: It fits road leveling and highway maintenance sites, coping with frequent angle adjustment and dusty outdoor working conditions.
Q: How about the high and low temperature adaptability of this sealing assembly?
A: It maintains stable sealing performance ranging from -73°C to 366°C under long-period continuous grading operation.
Q: What work should technicians complete in advance before installation?
A: Carefully clean impurities and tiny burrs inside the cylinder. Hard particles will abrade the sealing surface and shorten service life.
Q: What hydraulic malfunctions can this piston seal ring effectively prevent?
A: It inhibits internal hydraulic oil leakage inside the cylinder and prevents seal deformation caused by pressure difference on two sides of the piston.
Q: What prominent strengths does poplar fiber reinforced HNBR have compared with conventional rubber materials?
A: It has excellent shock resistance and stable compression resilience, adapting to frequent angle adjustment movement of grader tilt cylinders.
Q: What engineering projects commonly require replacement of this piston seal ring?
A: It serves routine maintenance of hydraulic cylinder piston sealing assemblies on medium crawler excavators, widely used in urban infrastructure, highway subgrade construction, small quarry loading and residential foundation excavation projects.
6. Exhibition and Wearhous
Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More
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