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Oil Seals / Rotary Shaft Seals

Oil Seals / Rotary Shaft Seals

Custom Gasket Mfg. is a recognized leading manufacturer and supplier of high quality and high performance oil seals, rotary shaft seals, and hydraulic and pneumatic seals.Our company’s reputation for excellence has been built on our ability to provide our valued customers with the most effective designing, engineering and manufacturing solutions to meet their most demanding applications. Our main objective is to continuously exceed our customer’s expectations by providing them with high performance gaskets and sealing products, competitive pricing, on-time delivery and exceptional customer service.  Custom Gasket Mfg. maintains a modern manufacturing facility along withknowledgeable, technically-oriented professionals enabling us to consistently meet all of your blueprint specifications and tolerance requirements.

Oil Seals and Rotary Shaft SealsCustom Gasket Mfg. has over forty years experience specializing in the manufacturing of custom metric and standard Oil Seals, Rotary Shaft Seals, Grease Seals, Wiper Seals, End Cap VK-HP Seals, V-Seals (V-Rings), U-Packing Seals and Gamma Rings for a wide range of industries and applications.  Oil seals are also known as shaft seals, radial oil seals and lip seals.  Rotary Oil seals are designed to compartmentalize spaces between components in mechanical equipment.  Oil seals are used to seal around a rotating shaft and keep an oil-based lubricant inside an axle, engine, etc.  Grease seals are used to seal more viscous grease lubricants in rotary shaft applications.  In simplest terms, an oil seal is a barrier with four functions; retaining lubricants or liquids, excluding contaminants, separating fluids, and confining pressure.  These seals help to keep the machine running as smooth as possible.  Oil seals from Custom Gasket Mfg. can be used for any type of machinery that seals hydraulic fluid; pumps, automotive, cylinder manufacturers and more.

Custom Gasket Mfg. provides rotary oil seals and shaft seals in a variety of styles, sizes, and materials to appropriately suit your application. Our selection of fluid sealing products are available in a comprehensive range of rubber polymers including Nitrile (NBR), Viton®, Fluorocarbon (FKM), Silicone (VMQ), Neoprene®, Chloroprene (CR), Ethylene Propylene (EPDM), Polyacrylic (ACM), Styrene Butadiene Rubber (SBR), Fluorosilicone (FVMQ), Polyurethane (AU/EU), Hydrogenated Nitrile (HNBR), and Methyl Vinyl Silicone (MVQ). Our oil seals are produced from the highest quality springs and cases made from carbon steel, stainless steel or FDA Approved stainless steel. All products are manufactured according to ASTM D2000 standards. Custom Gasket Mfg. can supply custom oil and rotary shaft seals to your OEM drawings and specifications.

Oil Seal Common Styles

If you are uncertain of the oil seal style you require, please feel free to send us an actual sample of your seal and Custom Gasket Mfg. will reverse engineer the seal for you.  We offer cost-effective alternatives to brand name seals and have been able to consistently provide our customers with premium quality seals at significant savings.  The most common oil seals styles used are; TC, SC, TA, SA, TB, SB, and VC.  Oil seal types TA, SA, TB, and SB all have bare steel on their OD widths.  Custom Gasket Mfg. can process the widths in different options; ground OD, highly polished bright steel, coated OD and painted with a rubber to fill in small cracks in the OD housing.  The other types of common seals have OD widths that are rubber covered.

Oil Seal / Shaft Seal Designs

Oil shaft seal designs

Oil Seal / Shaft Seal Styles

  • Type TC Dual Lip, Rubber Coated with Spring
    Low-pressure dual lip with garter spring provides protection from contaminants. Rubber covered O.D. improves sealing ability at the housing.  Internal face of the steel case is not fully rubber covered.

  • Type SC Single Lip, Rubber Coated with Spring
    Low-pressure single lip with garter spring.  Rubber covered O.D. improves sealing ability at the housing. Internal face of the steel case is not fully rubber covered.

  • Type KC Dual Lip, Rubber Coated, No Spring
    Non-pressure dual lip without garter spring provides protection from contaminants. Rubber covered O.D. improves sealing ability at the housing. Internal face of the steel case is not fully rubber covered.

  • Type VC Single Lip, Rubber Coated, No Spring
    Non-pressure single lip without garter spring.  Rubber covered O.D. improves sealing ability at the housing. Internal face of the steel case is not fully rubber covered.

  • Type TB Dual Lip, Metal Case with Spring
    Low-pressure dual lip with garter spring provides protection from contaminants. Precision ground metal OD with a lead-in chamfer for ease of installation.  Stainless steel is available on special request.

  • Type SB Single Lip, Metal Case with Spring
    Low-pressure single lip with garter spring.  Precision ground metal OD with a lead-in chamfer for ease of installation.  Stainless steel is available on special request.

  • Type KB Dual Lip, Metal Case, No Spring
    Non-pressure dual lip without garter spring provides protection from contaminants. Precision ground metal OD with a lead-in chamfer for ease of installation.  Stainless steel is available on special request.

  • Type VB Single Lip, Metal Case, No Spring
    Non-pressure single lip without garter spring.  Precision ground metal OD with a lead-in chamfer for ease of installation. Stainless steel is available on special request.

  • Type TA Dual Lip, Full Metal Case with Spring
    Low-pressure dual lip with garter spring provides protection from contaminants.  Precision ground O.D. with the addition of an inner case that provides increased structural rigidity and durability. Stainless steel is available on special request.

  • Type SA Single Lip, Full Metal Case with Spring
    Low-pressure single lip with garter spring.  Precision ground O.D. with the addition of an inner case that provides increased structural rigidity and durability.  Stainless steel is available on special request.

  • Type KA Dual Lip, Full Metal Case, No Spring
    Non-pressure dual lip without garter spring provides protection from contaminants.  Precision ground O.D. with the addition of an inner case that provides increased structural rigidity and durability.  Stainless steel is available on special request.

  • Type VA Single Lip, Full Metal Case, No SpringNon-pressure single lip without garter spring.  Precision ground O.D. with the addition of an inner case that provides increased structural rigidity and durability.  Stainless steel is available on special request.

V-Rings (V-Seals)

Custom Gasket Mfg. fabricates V-Rings for shafts requiring a dynamic seal.  They are flexible rubber seals that stretch-fit onto the shaft and rotate with the shaft against a counter face.  The body of V seals rotates with the shaft and holds itself in position by its elastic fit around the shaft.  Sealing is produced by the contact between the lip and the face.  The V-Ring seal has good sealing action when the shaft is asymmetric and/or there is some misalignment.  They are specifically designed to protect the primary seal from contaminants.  They provide excellent protection against all types of liquid, grease, oil, dirt, and other foreign materials.

Custom Gasket Mfg. also offers V-Ring Sets which are used as piston seals.  They consist of a top seal, three middle rings, and a bottom seal.  We supply them in Nitrile / Buna-N (NBR), EPDM, and Viton®, and we are well tooled for common dimensions.

Wiper Seals (aka Dirt Wipers)

Wiper SealsCustom Gasket Mfg. fabricates custom wiper seals.  A wiper seal is an axial seal that prevents contamination while allowing a reciprocating shaft to pass through the seal's inner bore.  A wiper seal's primary task is to prevent the corruption of particles in the hydraulic system.  They are often used for eliminating fluid contamination and to prevent dirt from entering a reciprocating shaft mechanism.  Wiper seals are typically used on hydraulic and pneumatic cylinders and telescopic suspension forks for motorcycles and bicycles.  Wiper seals are also manufactured from over 15 polymers including:  Nitrile / Buna-N (NBR), Fluorocarbon (Viton®, Fluorocarbon (FKM), Silicone (VMQ), Fluorosilicone (FVMQ), Polyurethane (AU/EU), Natural Rubber (NR), Ethylene Propylene (EPDM), Hydrogenated Nitrile Rubber (HNBR), Styrene Butadiene Rubber (SBR), Chloroprene (Neoprene®), Urethane, and Teflon®.


End Cap Series & Gamma Rings

End Caps, VK-HP

End caps are designed for applications where the shaft does not pass through the housing wall of the bore.  The end cover provides protection for the bearings.  The covers are designed to fit into housing bores for rotary shaft seals.  They have the same tolerances as those for the O.D. of a seal. The inner housing is carbon steel and the outer seal is nitrile rubber.  Industries that typically use end covers are gearbox, automotive, agricultural equipment, exercise equipment, trucks, buses and trailers.

Custom Gasket Mfg. specializes in providing high quality custom oil and special seals for the gearbox industry.  This industry uses End Caps VK, VK-HP (HP is high pressure), Gamma Rings RM and RO.

RM Gamma Rings RO Gamma Rings


Rotary Shaft Seal and Oil Seal Markets

Custom Gasket's custom oil seals and shaft seals are currently used in the following industries. We excel in gearbox related applications for the following industries:

  • Gearboxes
  • Fuel Pumps
  • Augers Mixers & Dryers
  • Casters
  • Drilling Spindles
  • Electric Motors
  • Propeller Shafts
  • Transmissions
  • Compressors
  • Liquid Handling Swivel
  • Rolling Mill
  • Vacuum Pumps
gear box
  • Fuel Handling Flexible
  • Couplings
  • Geo-Rotors
  • Racing Engines
  • Hydrostatic
  • Joints
  • Agitators
  • Gear Pumps
  • Crank Shaft
  • Hydraulic Motors & Pumps
  • Wheel Hubs

For more information on oil seals and rotary shaft seals or to speak with one of our knowledgeable professionals, please feel free to Contact Us or complete our online Request For Quote form.

Call 800-985-6750 or email your inquiry to sales@customgasketmfg.com