Radial Shaft Seal (Oil Seal) Manufacturing

Radial Shaft Seal Manufacturing Capabilities

Radial Shaft Seal Manufacturing Capabilities Radial shaft seals are typically used to seal a rotating shaft to a stationary bore. They have an internal metal can typically stamped carbon steel and a molded elastomer exterior or sealing lip that provides both dynamic and static sealing.

There are many choices for sealing lip geometry and metal can configurations, each configuration is suited for a specific application. Choosing the seal design should be based on the application information for the area that needs to be sealed.

ESP Engineered Components can design and develop custom sealing components for your specific needs. Utilizing Solidworks, Pro/e, and advanced nonlinear FEA capabilities our highly-skilled engineers and manufacturing expertise can take your idea from concept to completion.

Main Factors That Dictate Radial Shaft Seal (Oil Seal/Grease Seal) Design

• Fluid Type
• Application Temperature
• Shaft Speed
• Application Pressure
• Exposure Level to Contaminants

Shaft Seal Engineering Form

Seal Selection

6 Standard Radial Shaft Seal Lip Designs

	Base Profile	Description	Recommended For
S		Single Lip With Garter Spring	Generally used for sealing lower pressure oil separating applications. Not Recommended for use in applications where the environment contains dirt or contaminants.
T		Dual Lip (Dust Lip) With Garter Spring	Generally used for sealing lower pressure oil separating applications. The additional dust lip provides increased protection for the main lip. The space between the two lips can also be filled with grease to limit shaft corrosion and allow brief operation without media lubrication.
D		Double Lip With Garter Spring	Designed to separate two media.
V		Single Lip Without Garter Spring	Generally used for sealing a non-pressure medium, especially for sealing grease or viscous fluids. These seals are also used for dust or dirt exclusion.
K		Dual Lip (Dust Lip) Without Garter Spring	Generally used for sealing a non-pressure medium, especially for sealing grease or viscous fluids. These seals are also used for dust or dirt exclusion.
U		Triple Lip Without Garter Spring	Generally used for sealing a non-pressure medium, especially for sealing grease or viscous fluids. These seals are also used for heavy dust or dirt exclusion.

7 Standard Radial Shaft Seal Can Designs

	Base Profile	Description	Recommended For
B		Outer Metal "L" Case	Most common and economical. Suitable for steel or cast iron housing. This case design gives a firm and accurate seat, but static sealing on the O.D. is limited.
C		Rubber Covered O.D.	Improved O.D. sealing in bores with minor imperfections and in soft alloy housings.
F		Rubber Covered O.D.	Similar to C but designed with an additional rubber covering fully protecting the internal steel case. Good option for applications prone to corrosion.
A		Outer Metal Case With Reinforcing Plate	Designed with an additional inner case providing increased structural rigidity when a more robust design is required. Good for larger diameters or when the seal is fitted from behind.
M		Outer Metal Case With Rubber Lining	Similar to B but designed with an additional covering to protect the internal face of the steel case from internal corrosion.
P		Outer Metal "P" Case	Designed for ease-of-removal and flange positioning.
D		"Heel" Case	Designed for reduced spring back and ease of installation. Combines sealability of rubber O.D. and bore retention of metal O.D.

If you have a specific application in mind fill out the Radial Shaft Seal Parameter Sheet and forward it onto one of our application engineers. For more information on radial shaft seals, consult our Radial Shaft Seal Handbook. And if you have an application that may require lab testing, check out our listing of Seal Test Equipment.