CR 18785 shaft seal CR12483 CR99787 CR99721 CR32501 CR32502 CR25588 CR99750 CR99393 CR99854 CR48692 

CR 18785 shaft seal CR12483 CR99787 CR99721 CR32501 CR32502 CR25588 CR99750 CR99393 CR99854 CR48692 CR11138 CR27324 CR25076 CR52447 CR52475 CR93115

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What is Radial shaft seal

Radial shaft seals, also known as lip seals, are used to seal rotary elements, such as a shaft or rotating bore. Common examples include strut seals, hydraulic pump seals, axle seals, power steering seals, and valve stem seals. Early radial shaft seals utilized rawhide as the sealing element, and many elastomeric seal companies today once were tanneries. The advent of modern elastomers replaced rawhide, industry also added a garter spring which helps the sealing lip compensate for lip wear and elastomer material changes.

The seal construction will consist of a sprung main sealing lip which has a point contact with the shaft. The point contact is formed by two angles, with the air side angle usually less than the oil side angle. Depending on the seal type these two angles are varied to create a pressure distribution at the seal contact point which has a steeper slope on the oil side of the seal. The shallower the slope on the oil side of the seal the wetter the seal will run. The spring is positioned such that axially the centerline of the spring is biased to the air side of the lip contact point.

In order to exclude contaminants numerous types of dust lips or exclusionary lips may be used. Common elastomers include FKM, ACM, NBR, HNBR, and AEM. In order to resist wear, the compounds' durometer (hardness) is typically 70 to 85 Shore A (between that of an automobile tire and a soft inline-skate wheel).

A different seal design for similar applications is a rotating face seal.

Lead has Part number of CR seals.

CR12483 CR99787 CR99721 CR32501 CR32502  CR25588 CR99750 CR99393    CR99854 CR48692  CR11138    CR27324 CR25076 CR52447 CR52475 CR93115  5900 100*120*12 CRW1 V   CR47697 CR14810  CR22361    CR32392 CR99315  CR43650  CR44968  CR41125  CR41126    CR63700 CR17340    CR16814 CR29465  CR17780    CR17292  CR9907  CR57531 CR100075  CR1300542 CR18652  CR7693  CR19737  CR17752  CR171025  CR24898    CR24910  CR9879  CR43650 CR17761 CR99159 CR99139 CR99147 CR23641 CR33426 CR99872 CR29871 CR29384    CR29184 415683  CR32393  CR32392 CR99630  CR22361 CR37533  CR17448  CR32502 CR51125  CR99334 CR99187  CR504277  CR504264  CR99413 CR99354 CR99687 CR504272 CR44968 CR17292  CR33665    CR99313    CR99552  CR99640 CR99294  CR99630  CR99354 CR99254 CR99787 CR99435 CR99315 CR99366 CR11606 CR11605  CR24898 CR43761 CR4769R52658 CR25431 CR42528  CR79961 CR511201 CR29226 CR29224 CR12350 R542756  CR18734 CR11392 CR11123 CR11124  CR19763 CR12360  CR62495 CR13534 CR64998 CR57522 CR9876 CR13514 CR33412 CR16046 CR32502 CR23685 CR16816 CR16817 CR99571 CR99359  CR29952  CR29958  CR9725 CR17750  CR19929  CR19301 CR56101 CR42433 CR18652  CR22353 CR22354 CR29850  CR43073CR43761 CR29952 CR33701 CR16062  CR12360 CR17750 CR17754 CR19606 CR9725  CR13938  CR18242 CR18114 CR13920 CR17381   CR34868  CR28790 CR27280  CR11171 CR33665 CR60026