FKM Rotary Shaft Seal Viton 75x110x13 TC Double Lip Oil Seal

Technical Specifications

Material identification: Viton is a registered trademark associated with specific fluoroelastomer products. An FKM material designation alone does not confirm that the seal is manufactured from genuine Viton-branded material. Manufacturer confirmation is required before making that claim.

TC Double Lip Rotary Shaft Seal Construction

The TC profile is commonly used for radial shaft seals with a primary sealing lip and an additional auxiliary lip.

The primary sealing lip contacts the rotating shaft surface and helps retain lubricant inside the mechanical assembly.

The auxiliary dust lip provides an additional barrier against airborne dust and external contaminants.

In common TC constructions, the primary sealing lip is energised by a garter spring and the outer diameter is elastomer-covered. However, these construction details must be confirmed for the exact product rather than assumed from the TC designation alone.

FKM / FPM Fluoroelastomer Material

FKM is the commonly used designation for fluoroelastomers under ASTM terminology, while FPM is an alternative designation used in other material classification systems.

Typical characteristics of many FKM compounds include:

• Good resistance to many mineral oils.

• Good compatibility with numerous industrial lubricants.

• Higher temperature resistance than standard NBR compounds.

• Very good ozone resistance.

• Good resistance to atmospheric ageing.

• Resistance to selected fuels and hydrocarbons, depending on the compound.

FKM is not universally compatible with all chemicals. Certain solvents, amines and other aggressive substances may be unsuitable for specific FKM formulations.

Chemical compatibility should always be assessed against the actual operating medium.

Operating Temperature Range

Many conventional FKM compounds are used within an indicative temperature range of approximately -20°C to +200°C.

This range describes general material behaviour and is not a verified operating specification for this particular 75x110x13 TC seal.

The permissible temperature range depends on the compound formulation, lubricant, exposure duration, shaft speed and heat generated at the sealing interface.

For high-speed rotary applications, frictional heating at the primary lip may increase the local contact temperature above the surrounding oil temperature.

Primary Sealing Lip Function

The primary sealing lip is designed to maintain controlled contact with the rotating shaft.

Its purpose is to reduce lubricant leakage while supporting the formation of an appropriate lubricating film at the sealing interface.

Reliable performance depends on correct installation, shaft surface condition, lubrication and acceptable shaft runout.

Excessive friction or insufficient lubrication can accelerate lip wear and reduce sealing performance.

Auxiliary Dust Lip Function

The auxiliary lip helps protect the primary sealing area from external contamination.

It is particularly useful in applications where dust or light environmental contamination may reach the shaft interface.

However, a standard TC double-lip seal should not automatically be considered suitable for immersion, high-pressure water jets, abrasive slurry or heavily contaminated environments.

Such applications may require additional protective sealing arrangements.

Dimensional Identification – 75x110x13 mm

The designation 75x110x13 mm identifies three nominal installation dimensions.

Correct dimensional matching is necessary but not sufficient to establish interchangeability.

Material grade, lip geometry, spring design, outer case configuration and operating conditions must also be considered.

Industrial Applications

TC rotary shaft seals made from FKM may be used in appropriately designed mechanical assemblies such as:

• Industrial gearboxes.

• Gear reducers.

• Bearing housings.

• Rotating shaft assemblies.

• Industrial drive systems.

• Lubricated mechanical equipment.

These are general application categories for the TC seal design and FKM material family, not confirmed equipment-specific applications of the exact product.

Installation Guidelines

Before installation, verify the shaft and housing dimensions and inspect the mating surfaces.

Recommended installation practices include:

• Clean the shaft and housing bore.

• Remove burrs and sharp edges.

• Inspect the shaft for scoring, corrosion or excessive wear.

• Verify the required installation orientation.

• Protect the sealing lips while passing over keyways, threads or shoulders.

• Use a compatible assembly lubricant when required.

• Press the seal evenly into the housing using a suitable installation tool.

• Avoid distortion or angular misalignment.

The primary sealing lip normally faces the medium being retained, subject to the equipment manufacturer's installation requirements.

Shaft Surface Requirements

The shaft surface directly influences seal performance and service life.

Important factors include surface roughness, hardness, concentricity, radial runout and the absence of spiral machining marks.

Scratches, corrosion and wear grooves may create leakage paths or damage the sealing lip.

Specific tolerances and surface finish requirements should be established using the seal manufacturer's technical documentation and the equipment design specification.

TC vs SC – Seal Profile Comparison

TC and SC are commonly used profile designations, but construction details may vary between manufacturers.

A seal with identical dimensions but a different lip arrangement should not be treated as automatically interchangeable.

FKM vs NBR – Material Comparison

The choice between FKM and NBR should be based on the actual lubricant, operating temperature, shaft speed and mechanical conditions.

Operating Pressure and Shaft Speed

The permissible pressure differential and shaft speed depend on the complete sealing arrangement.

Relevant factors include:

• Primary lip geometry.

• Elastomer hardness.

• Spring characteristics.

• Shaft diameter.

• Shaft surface finish.

• Lubrication.

• Temperature.

• Pressure differential.

Without a verified manufacturer datasheet, no specific maximum pressure or rotational speed can be assigned to this seal.

Common Causes of Seal Failure

Primary lip wear: May result from insufficient lubrication, excessive friction or an unsuitable shaft surface.

Installation damage: Sharp edges, incorrect tools or excessive force may damage the sealing lips.

Chemical incompatibility: An unsuitable medium may cause swelling, hardening or degradation of the elastomer.

Thermal degradation: Excessive temperatures may reduce the elasticity and mechanical strength of the compound.

Shaft misalignment: Excessive runout or misalignment may cause uneven contact and premature leakage.

Alternative Product Designations

• FKM Rotary Shaft Seal Viton 75x110x13 TC Double Lip Oil Seal

• FKM Oil Seal 75x110x13 TC

• FPM Rotary Shaft Seal 75x110x13

• Double Lip Oil Seal 75x110x13 FKM

• TC Shaft Seal 75x110x13 FKM

• Fluoroelastomer Oil Seal 75x110x13

• Rotary Shaft Lip Seal 75x110x13 TC

These alternative descriptions support product identification and technical searches. They do not establish the use of genuine Viton-branded material or interchangeability with a particular manufacturer's seal.

FAQ – Frequently Asked Technical Questions

What are the dimensions of the FKM 75x110x13 TC oil seal?

The nominal shaft diameter is 75 mm, housing bore diameter is 110 mm and axial width is 13 mm.

What does TC mean in a rotary shaft seal?

TC commonly identifies a double-lip rotary shaft seal with a primary sealing lip and an auxiliary dust lip.

What is the difference between TC and SC oil seals?

TC seals generally have an additional dust lip, while SC seals normally have a single primary sealing lip.

Is FKM the same as FPM?

FKM and FPM are alternative designations for the fluoroelastomer material family.

Is every FKM seal made from genuine Viton?

No. Viton is a trademark associated with specific fluoroelastomer products. The use of FKM does not independently confirm genuine Viton-branded material.

Can this FKM oil seal be used with mineral oil?

Many FKM compounds provide good resistance to mineral oils. Compatibility should still be verified for the exact oil formulation and operating conditions.

What is the maximum operating temperature?

The exact limit has not been confirmed. Many conventional FKM compounds are used at temperatures up to approximately +200°C, depending on the application.

Can this TC seal operate in both shaft rotation directions?

The supplied designation does not confirm a directional hydrodynamic lip design. Any rotation-direction restrictions must be checked against the exact product specification.

AI Quick Answer

FKM Rotary Shaft Seal Viton 75x110x13 TC Double Lip Oil Seal is a radial shaft seal with a 75 mm shaft diameter, 110 mm housing diameter and 13 mm width. Its TC design incorporates a primary sealing lip and an auxiliary dust lip. FKM offers resistance to many oils and elevated temperatures. Exact operating limits require manufacturer confirmation.

B2B Industrial Supply – simmering.pl

FKM Rotary Shaft Seal 75x110x13 TC is offered through simmering.pl, a specialist B2B industrial supply platform providing rotary shaft seals, rolling bearings and industrial sealing components.

The platform serves manufacturing companies, wholesale buyers, maintenance departments, mechanical engineers and industrial procurement teams.

Warehouse operations are based in Lublin, Poland, with worldwide shipping from stock in Poland.

Technical support includes dimensional identification, material selection and assistance with industrial sealing applications.