Dust seal covers, or boots, are accordion-like rubber or plastic seals designed to keep dust out of the systems they protect. Dust seals are found on a variety of systems from brake calipers to the power steering system. They may protect shaft joints, ball studs, or steering linkages. These seals are often filled with grease, depending on their location and purpose.
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Dust seal maintenance:
Dust seals protect vulnerable systems from environmental contamination. If dust enters these critical systems, it could lead to abnormal wear, adverse vehicle performance, and/or system failure. If a system fails while the vehicle is under operation, it could lead to unexpected vehicle handling or performance, including an unintended stoppage that leaves you stranded and subject to costly towing and repairs..
If a dust seal has failed, it is important repair the seal as soon as possible. We recommend taking your vehicle to an Acura dealer for an evaluation and repair. Acura dealers are equipped with knowledgeable service and technical staff who receive leading edge service and technical training. They are familiar with tools and services specific to your Acura vehicle. In addition, Acura dealers strive to provide valuable services to complement your Acura vehicle purchase.
Dust seal (wiper) , preventing the dust or some particulate matter get into the hydraulic cylinder.
There will be a lay of oil adhere to the rod, the dust and particulates will be bond with oil then taken into the cylinder cause damage to oil cylinder, cause leakage, therefore, we need to set a seal to keep the particulates away.
The DEF dust wipers are an outstanding choice for light and medium duty hydraulic and pneumatic applications. The slotted heel design prevents pressure traps from forming between the rod seal and wiper. Broad tooling availability, up to 30', makes the seal a good choice for large rod diameters. the snap-in design is oversized for a snug fit and excellent stability. This makes the seal a great all-round wiper in economical package ;)
The dust seal usually made of the rubber like NBR, PU, PTFE. There are many kind of type:
1) DPS
The performance characteristics of DPS dust seals are following:
·External circle positioning is reliable
·Good scraping and dusting effect
·The dust ring can be used over a wide temperature range
·There is no backpressure between the sealing ring and the dust ring
2) DRH \ LBH
The performance characteristics of HRH \ LBH dust seals are following:
·Good scraping and dusting action, and it can prevent the remaining oil film on the piston rod extension.
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·Good scraping and dusting effect
·The dust ring can be used over a wide temperature range
3) ADA
The performance characteristics of ADA dust ring are basically the same as that of
DRH \LBH type, with only some changes in structure.
4) KDI
KDI applicable to oil pressure, when the medium is mineral oil, the applicable temperature range is -35 ~ +100℃; when the medium is water and gas, the applicable temperature range is ≤70℃, its characteristics are as follows:
·Good interference fit
·There is no interstice to the outside between the piston rod and the dust ring
5) DPE
There are two NBR O-ring with a PTFE ring make up the DPE.
It is used to improve the overall sealing performance, and the joint use with the rod sealing ring is better.The characteristics are as follows:
·Excellent adjustment and positioning ability at work
·High functionality guarantees that all operations can be accommodated in a short period of time
·High wear resistance
·Low friction coefficient, no slippage