Which way do you install a seal?
The side with the spring and recess always faces the oil you are trying to contain. IE: Crank seals on the drive side or primary side are meant to retain the oil level in the chain case. The seal is installed with the spring facing out toward the primary case.
Where do you put the oil seal on a shaft?
For the oil seal to operate correctly, the seal lip must be aligned with the medium to be sealed. To make it easier to slide over the shaft, both the shaft and the oil seal lip must be lubricated properly beforehand with grease or oil. Oil seals with a leather seal lip must be soaked in oil for some time in advance.
How do radial seals work?
Dynamic radial seals operate in an environment that has a relative reciprocating, rotating or oscillating motion between the mating components. Because there is a relative motion between the mating components and the seal, the dynamic radial seal is subjected to friction inherent in the operating system.
When installing a lip type seal the lip must?
Orient your seal the same way as the initial install. The sealing lip should face the lubricant that requires sealing. The second lip on a double lip oil seal is intended as a dust lip. The seal must be installed at a 90°, or perpendicularly, to both the shaft and housing bore.
Which way do lip seals go?
For oil, the lip should face inward along the shaft to hold in the oil. For greased bearings, the lip usually faces outward to allow the grease to purge.
Is a lip seal dynamic or static?
Lip seals are items which, if cut across, show the presence of one or more sealing lips on the inside or outside diameter. This type of seal is necessarily used for all types of dynamic seal.
Can a radial shaft seal be installed properly?
To provide effective sealing, radial shaft seals must be installed properly. An experienced installer with suitable tools, working in a clean environment, is recommended to provide proper installation. The shaft counterface surface and housing bore should meet the demands specified in the sections Shaft requirements and Housing bore requirements.
How to install an oil seal on a shaft?
The installation tool is lubricated, preventing seal lip damage from splines, keyways, and unchamfered shafts. Proceed cautiously to ensure seal and bore align properly as the seal is being installed. The bottom of the installation tool meets the face of the shaft. Described below, are incorrect ways to install an oil seal.
What kind of sealing lips do I need for a radial shaft?
Seals with PTFE sealing lips in general industrial applications. Metal cased seals for grease lubricated applications. Self retaining for open end or through housing bores in general industrial applications. Sealing against housing bore, generally installed with the sealing lips facing outward to provide optimum exclusion.
How does a Rotary Seal on a cylinder work?
A rotary seal, also known as a radial shaft seal, typically sits between a rotary shaft and a fixed housing — such as a cylinder wall — to stop fluid leaking along the shaft. The rotary seal’s outside surface is fixed to the housing, while the seal’s inner lip presses against the rotating shaft.