Rotary Shaft Seals
Rotary seals and Shaft Seals are regularly used in components where there are oscillating or rotating parts. This simple component keeps the lubrication fluid in while preventing the ingress of unwanted material such as mud and fluids such as water. This type of seal is used in thousands of applications with oils and greases of all types and the basic idea was so good, it remains fundamentally unchanged for over 100 years, when and idea works it works!
Many applications require the standard Nitrile rubber coating (NBR) but we can also offer in other materials for applications where there may be higher temperature, harsher chemical resistance or food grade such as Viton, Silicone or PTFE and for more specialist applications there are many other materials available to solve almost any issue you may encounter.
We use a nomenclature to describe the basic types of which our standard stocked parts are the R21 and R23:
- R1 - Totally enclosed with a leather or rubber lip
- R4 - Uncoated case with rubber spring lip
- R6 - Uncoated case with rubber spring lip and wiper
- R21 - Coated case with rubber spring lip
- R22 - Coated case with two rubber spring lips
- R23 - Coated case with rubber spring lip and wiper
- R25 - Coated case with rubber unsprung lip
Not all sizes are available in the listed types.